​Abstract:  The horizontal resolution is a prominent constraint on the accuracy of simulating synoptic and sub-synoptic scale rainfall. High resolution General Circulation Models are significantly better than Regional Climate Models and conventional coarse resolution General Circulation Models in their representation of atmospheric circulation and precipitation. In this study two monsoon systems over Africa, the features associated with them, and their future are examined using a high resolution Atmospheric General Circulation Model, HiRAM. HiRAM, which is developed at Geophysical Fluid Dynamics Laboratory, employs a cubed-sphere finite volume dynamical core and uses shallow convective scheme for moist convection and stratiform cloudiness instead of a deep convective parameterization. Future projections are conducted using the representative concentration pathway, RCP 8.5 from 2076 to 2099 at C360 (~25 km) resolution. The study explores three important climate features of the region: West African Monsoon, Southern African Monsoon, and African Easterly Waves. These climate systems particularly benefit from high resolution simulations since they involve several multiscale processes and are influenced by coastlines and complex topography. Particular attention is given to Southern African monsoon since it is vastly underexplored. The study shows that, in the RCP 8.5 scenario, elevated areas of Sahel and western Sahara experience robust warming of >4K by the end of the 21st century. Precipitation increases over the equatorial Atlantic and the Guinean coast, while the southern Sahel appears drier. The wave activity of the region also shows a significant increase. The examination of the future projections of southern Africa reveals increased precipitation over central Africa and contrasting anomalies over northern Madagascar while Kalahari desert experience significant warming. The rainfall change in a global warming scenario is not unidirectional, unlike the temperature which increases almost everywhere and this emphasizes the need for more projection studies. 

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• CONTACTLinda J. Sapolu
• EMAILLinda.Sapolu@kaust.edu.sa

​ABSTRACT: Ligand-protected metal nanoclusters (NCs), which are ultra-small nanoparticles marked by their atomic precision, are distinctly importance for contemporary nanomaterials. NCs have attracted significant research attention for utilizing their novel optical and physicochemical properties in various applications, including fluorescence sensing, catalysis, and biomedical applications. This dissertation deals with ligand-protected atomically precise silver NCs and is divided into two main parts. The first part is focused on the exploration and design of well-defined silver NCs through surface co-ligand engineering. The second part is related to the development of silver NC-based frameworks (NCFs). 

In the first part, we designed a synthetic strategy based on engineering the structure of the phosphine co-ligands with thiols to generate the large box-shaped [Ag₆₇(SPhMe₂)₃₂(PPh₃)₈]³⁺  (referred to as Ag₆₇) NC. The strategy demonstrates that the combined use of judiciously chosen thiol and phosphine co-ligands can result in stable highly anisotropic box-like shapes. The optical absorption spectrum of the Ag₆₇ NC displays highly structured multiple sharp peaks. The crystal structure shows a Ag₂₃ core formed of a centered cuboctahedron (an unprecedented core geometry in silver clusters), which is encased by a layer with a composition of Ag₄₄S₃₂P₈ arranged in the shape of a box. The electronic structure of this box-shaped cluster resembles a jellium box model with 32 free electrons. 

In the second part, a novel approach is developed for the assembly and linkage of atomically precise Ag NCs into one-dimensional (1D) and two-dimensional (2D) NC-based frameworks (NCFs) with atomic-level control over cluster size and dimensionality. With this approach three novel, but related, crystal structures (one silver NC and two NCFs) were synthesized. These structures have the same protecting ligands, and also the same organic linker. The three structures exhibit a similar square gyrobicupola geometry of the building NC unit with only a single Ag atom difference. The critical role of using a chloride template in controlling the NC's nuclearity was demonstrated, as well as the effect of a single Ag atom difference in the NC's size on the NCF's dimensionality, optical properties, and thermal stability.

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• CONTACTMazen E. Mero

​Abstract: 

​Abstract:  Photocatalytic water splitting using solar irradiation has the potential to produce sustainable hydrogen fuel on a large scale. Practical solar energy conversion requires the development of new, stable photocatalysts that operate efficiently under a broad range of visible wavelengths. Organic semiconductors are increasingly being employed as photocatalysts due to their earth abundance, aqueous stability, and optical absorptions that can be tuned to the solar spectrum. However, much remains unknown about the mechanism of organic semiconductor photocatalysis, and significant efficiency improvements need to be made before organic photocatalysts can achieve practical solar energy conversion.

In chapter 2 the effect of residual Pd on hydrogen evolution activity in conjugated polymer photocatalysts was systematically investigated using colloidal poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) nanoparticles (NPs). Residual Pd, originating from the synthesis of F8BT via Pd catalysed polycondensation polymerisation, was observed in the form of homogenously distributed Pd NPs within the polymer. Residual Pd was essential for any hydrogen evolution to be observed from this polymer, and very low Pd concentrations (<40 ppm) were sufficient to have a significant effect on the hydrogen evolution reaction (HER) rate. The HER rate increased linearly with increasing Pd concentration from <1 ppm to approximately 100 ppm, at which point the rate began to saturate. Transient absorption spectroscopy experiments support these conclusions and suggest that residual Pd mediates electron transfer from the F8BT NPs to protons in the aqueous phase.

Photocatalysts formed from a single organic semiconductor typically suffer from inefficient intrinsic charge generation, which leads to low photocatalytic activities. In chapter 3 we demonstrate that incorporating a heterojunction between a donor polymer and non-fullerene acceptor in organic NPs can result in hydrogen evolution photocatalysts with greatly enhanced photocatalytic activity. Control of the nanomorphology of these NPs was achieved by varying the stabilizing surfactant employed during NP fabrication, converting it from a core-shell structure to an intermixed donor/acceptor blend, and increasing H2 evolution by an order of magnitude. The resulting photocatalysts display an unprecedentedly high H2 evolution rate of over 60,000 µmolh-1g-1 under 350 to 800 nm illumination and external quantum efficiencies over 6% in the region of maximum solar photon flux.

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• CONTACTLinda J. Sapolu
• EMAILLinda.Sapolu@kaust.edu.sa

Abstract:

Pre-ignition is one of the oldest problems plaguing internal combustion engines. As the name implies, through some mysterious mechanism, a flame initiates in the fuel-air mixture BEFORE the spark plug fires! This confounding issue has resurfaced recently with an increase in the production of turbocharged engines aimed at reducing CO₂ emission from spark-ignited engines. Stochastic Pre-ignition, as it is known, occurs rarely and randomly, once in 2,000 to 20,000 cycles at high loads. With random events occurring so rarely, long tedious run times are required to capture an event. With such a rare occurrence of stochastic pre-ignition, one might think the rare nuisance event can be ignored. Not so, as a flame occurring well before spark ignition leads to very high pressures at top dead center.  A single event can cause permanent hardware damage to the engine.

This dissertation looks at Pre-ignition from various aspects: detecting Pre-ignition via in-house ion-current sensors, investigating evasive strategies avoiding engine damage, suggesting methods suppressing Pre-ignition frequency, and understanding the phenomenon behind such stochastic behavior. Several methods suppressing Pre-ignition include injecting fuel in multiple pulses, using Octane-on-Demand Concept, using Gasoline and Methane in a dual fuel concept, injecting various fluids like Gasoline, Ethanol, Methanol, and Water in the late compression stroke and injecting water in intake, compression, and late exhaust stroke.

The dissertation also provides a conceptual framework for Pre-ignition occurrence. The framework proposes that a successful pre-ignition event occurrence is reliant on the success of several steps: In Step 1, Pre-ignition precursors (deposits flakes or rogue oil-fuel droplets) are formed and heated during the power stroke. Normally these embers are swept out in the exhaust stroke.  But occasionally, an ember may be trapped in the residual gas that remains after the exhaust stroke (Step 2). These embers can ignite a flame in the fresh intake charge before the spark plug fires (Step 3). The probability of step 1 is dependent on the mixture formation, the probability of step 2 is dependent on the scavenging process, and the probability of step 3 depends on in-cylinder temperature and pressure as top dead center is approached.  

Bio:

Eshan Singh joined KAUST in Fall 2015. Before that, he was a Trainee Scientist at National Laboratory CSIR-Indian Institute of Petroleum, where he also received his master's degree in Advanced Automotive Technology in 2014. Eshan has authored 20 peer-reviewed publications, a book chapter, and holds one patent on detection followed by evasive measures to defuse pre-ignition. He has also represented KAUST at several prestigious International Conferences.  

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• CONTACTEmmanuelle Sougrat

​ABSTRACT: As one of the most promising solar cell technologies, organic solar cells have unique superiorities distinct from inorganic counterparts, such as semitransparency, flexibility and solution-processability, as well as tunable photophysical properties, which originate from the structural verstailities of organic semiconductors. A major breakthrough in OSCs was the exploration of novel non-fullerene electron acceptor (NFAs): In comparison with traditional fullerene derivative acceptors, NFA possess several advantages, such as low synthesis cost, tunable absorption range and adjustable energetic level, which effectively provides a wide light-harvesting window with low energetic loss. However, the power conversion efficiencies of NFA-based organic solar cell is still lower than mature and commercial solar cell technology, such as crystalline silicon and perovskite solar cells. In this thesis, I achieve photovoltaic performance evolution via novel molecular design, solvent regulation and the introduction of a third component.

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• CONTACTMazen E. Mero

​ABSTRACT: Over the past few years, organic-inorganic hybrid perovskites have emerged as a new class of solution processable semiconductor for many optoelectronic applications, such as solar cells and light emitting devices (LEDs). Their electronic, electrical and optical properties can be controlled by tuning their compositions and crystal structures. In this talk, I will discuss how to control the dimension and nanostructure of perovskites by introducing small molecules and polymers with tailored functional groups that can strongly interact with the perovskite crystals. Using such strategy, we have developed very stable Sn-based low bandgap perovskite solar cells with much improved stability and efficiency^[1] as well as highly efficient red^[2] and blue^[3,4] emitting perovskite LEDs. In the second part of my talk, I will discuss how to lean on the experience in interface engineering for organic solar cells and design new electron^[5-7] and hole^[8-9] transport conjugated materials with proper interfacial properties to improve the charge collection efficiency of perovskite solar cells.

Reference:
(1) Z. Chen, H.-L. Yip, et al, iScience 2018, 9, 337-346. 
(2) W. Cai, H.-L. Yip, et al. ACS Appl. Mater. Interfaces 2018, 10, 42564-42572.
(3) Z. Chen, H.-L. Yip, et al Adv. Mater. 2017, 29, 1603157.
(4) Z. Li, H.-L. Yip, et al Nat. Commun. 2019, 10, 1027
(5) S. Chen, H.-L. Yip, M. Wang, F. Huang, et al, Adv. Energy Mater., 2016, 6, 1501534.   
(6) L. Yan, Q. Xue, H.-L. Yip, et al, Adv. Mater. 2018, 30, 1802509
(7) J. Tian, Q. Xue, H.-L. Yip, et al, Adv. Mater. 2019, 31, 1901152
(8) Q. Xue, B. Zhang, H.-L. Yip, et al, Adv. Energy Mater., 2016, 6, 1502021.
(9) Q. Xue, Y. Li, H.-L. Yip, et al, Adv. Funct. Mater., 2018, 28, 1707444.


BIOGRAPHY: Hin-Lap (Angus) Yip is a Professor in the State Key Laboratory of Luminescent Materials and Devices and the Materials Science and Engineering (MSE) Department in South China University of Technology (SCUT). He got his BSc and MPhil degrees in Materials Science from the Chinese University of Hong Kong, and completed his PhD degree in MSE in 2008 under the guidance of  Prof. Alex Jen at the University of Washington, Seattle. He joined SCUT in 2013 as full Professor. His current research focuses on the use of an integrated approach combining materials, interface, and device engineering to improve both polymer and perovskite optoelectronic devices. He had published more than 170 scientific papers with citations over 17000 and a H-index of 74. He was also honored as “Highly Cited Researcher” in Materials Science by Thomson Reuters from 2014-2018.

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• CONTACTMazen E. Mero

Abstract:

Drop impacts are present in our everyday lives, from showering and washing the dishes to inkjet printing and many industrial processes, such as spray coatings and spray cooling.  In many of these applications it may be undesirable to have air entrained within the drop when it impacts a surface.  As a drop approaches a surface, the gas beneath the drop is unable to fully escape resulting in a rising pressure which becomes sufficient to form a dimple in the bottom center of the drop.  Therefore, when the drop makes contact with the surface, it is around the perimeter of this dimple, thus entrapping a disc of air which contracts into a minute bubble.

In this dissertation, we study the very early time dynamics of the formation of the central air disc under a variety of circumstances using ultra-high-speed interferometry at rates up to 5 million frames per second.  We show the effects of the liquid viscosity for viscosities spanning 7 orders of magnitude, for impacts of drops onto solid surfaces or a film of the same liquid.  We find that the size of the air disc is weakly dependent on the drop viscosity to the -1/9 power. We also explore the extended gliding of the drop on a less than 160 nm thick film of air.  For impacts onto a solid surface, this gliding layer is rupture in multiple random locations and each localized contact wets the surface at extreme rates compared with the expected viscous-capillary velocity.  For impacts onto liquid films, the localized contacts are rarely observed and the gliding layer ruptures at a uniform location.  The central bubble contracts much faster than expected in this case as well.

Furthermore, we study the effects of reducing the ambient air pressure discovering a compressible and rarified-gas regime wherein the drop makes a double contact with the surface.  Lastly, we study the effects of nano-scale surface roughness on the central bubble and the formation of thick bands of microbubbles around the periphery of the air disc. 

Bio:

Ken joined KAUST as a Ph.D. student in the High Speed Fluids Imaging Lab under the supervision of Professor Siggi Thoroddsen in Fall 2015.  Ken received his B.S. and M.S. degrees from Brigham Young University, in Utah, USA, in 2011 and 2013.  Prior to coming to KAUST, he worked as a civilian mechanical engineer for the United States Air Force.  In 2016, he served as the president of the Graduate Student Council at KAUST and was the student convocation speaker in 2018.  Ken has published 10 peer-reviewed papers, a book chapter about high-speed interferometry, holds 1 US patent, and has given more than 10 oral presentations at international conferences.  Additionally, he has received 3 Gallery of Fluid Motion awards from the American Physical Society Division of Fluid Dynamics.

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• CONTACTEmmanuelle Sougrat

​Abstract:  Nowadays, the metathesis method is widely used in fundamental research and industrial processes. It allows for the efficient and environmentally-friendly production of fuels, pharmaceuticals, and organic building blocks. After a breakthrough discovery of the olefin metathesis in the early 1960s by industrial chemists at DuPont, Standard Oil, and Phillips Petroleum, organometallic chemists became highly interested in this new method due to its promising potential in synthetic chemistry. However, the catalysts known at that time represented narrow functional group tolerance. 

The problem of constructing a catalyst that allows for the olefin metathesis and tolerance of the functional groups in organic molecules took almost three decades to solve. R. Grubbs, R. Schrock, and Y. Chauvin overcame this problem and were awarded the Nobel Prize in Chemistry in 2005. In 1997 Basset reported the first metathesis of alkanes, filling the last missing gap in the field of metathesis of hydrocarbons. The metathesis of functionally substituted alkanes is the final brick in the wall of fundamental metathesis research. This dissertation is dedicated to the discovery of the field of functionalized alkane metathesis and discusses the strategies that have been applied to solve this unsolved chemistry problem. 

The surface organometallic chemistry approach was used to graft functionally tolerant late transition metal complexes based on Ruthenium and Iridium on a dehydroxylated silica support. However, this bimetallic system which catalyzes alkane metathesis showed very low activity and was not active in the metathesis of functionalized alkanes. A more active complex in C-H-activation, which is an early-transition metal complex (WMe5) supported on SiO2-700, was prepared and studied as a model pre-catalyst. Its deactivation by coordinating (ester, alcohol, siloxanes, and pyrroles) and non-coordinating (ferrocenes and silanes) substrates was shown. However, protection of the complex by modification of support with hydrocarbon and fluorocarbon chains does not deactivate it in olefin and alkane metathesis, and, at the same time, does not assist in metathesizing functionalized substrates. Finally, 9H-9-hexyl-carbazole with a well-delocalized pair of electrons on an N-atom has been metathesized over silica-supported WMe5. This result became the first-ever example of metathesis of functionalized alkane. 

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• CONTACTLinda J. Sapolu
• EMAILLinda.Sapolu@kaust.edu.sa

​ABSTRACT: Organic photovoltaic (OPV) devices have received significant attention and meanwhile record high power conversion efficiencies (PCE) above 17% are achieved. An essential step towards reaching the predicted PCE limit of 25.5% is to develop a comprehensive and concise picture of the (photo)physical processes in OPV devices. It is the aim of this thesis to identify relevant efficiency-limiting (photo)physical processes in donor-acceptor dyads and bulk heterojunction thin films by optical spectroscopy including ultrafast transient absorption spectroscopy. 

The first part of this thesis deals with the identification of different polymorphs in a diketopyrrolopyrrole-based (DPP) low-bandgap polymer. Applying time-resolved photoluminescence (TRPL) measurements to the polymer in different solvent mixtures and using multivariate curve resolution (MCR) to the ground-state absorption spectra revealed the co-existence of an amorphous (α) and two semi-crystalline (β₁ and β₂) polymer phases. 

The second part aims to understand the interplay between intramolecular energy and charge transfer processes in prototypical donor-acceptor dyads that use as the electron donor triangulene derivatives chemically linked to the electron acceptor perylenediimide (PDI) block via oligophenylene spacers of different length. A combination of ultrafast spectroscopy and computation of the dyads' excited state energies revealed the presence of dark states that are populated by ultrafast donor-acceptor energy transfer prior to hole backtransfer. 

Finally, the last part of the dissertation comprises a systematic approach to quantify efficiency-limiting processes in all-polymer thin-film solar cell devices by combining TRPL, transient absorption (TA), and time-delayed collection field (TDCF) measurements and by using MCR data analysis. The methodology and approach outlined are validated by the successful simulation of the solar cells' JV characteristics using the spectroscopically-determined rates and yields of the charge transfer processes.

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• CONTACTMazen E. Mero

​ABSTRACT: Ferroelectricity, a bistable ordering of electrical dipoles in a material, is widely used in sensors, actuators, nonlinear optics, and data storage. Traditional ferroelectrics are lead-based ceramics. Ferroelectric polymers are inexpensive lead-free materials that offer unique features such as the freedom of design enabled by chemistry, the facile solution-based low-temperature processing, and mechanical flexibility. The work horse of ferroelectric polymers is based on fluoropolymers, namely PVDF and its random copolymer P(VDF-TrFE). Among the ferroelectric polymers, odd nylons show remanent polarization similar to fluoropolymers. However, since the discovery of ferroelectricity in polymers, nearly half a century ago, a solution-processed ferroelectric nylon thin film has not been demonstrated because of the strong tendency of nylon chains to form hydrogen bonds. This presentation, will discuss the solution processing of transparent ferroelectric thin film capacitors of odd nylons. The demonstration of ferroelectricity, as well as the way to obtain thin films, makes odd nylons attractive for applications in flexible devices, soft robotics, biomedical devices, and e-textiles. 


BIOGRAPHY: Kamal Asadi received his PhD degree in solid-state physics from University of Groningen, the Netherlands. His PhD research work and patents contributed to the demonstration of the first organic ferroelectric memory array and its logic table. After a short Post-Doc period, he joined Royal Philips Electronics N.V. as a research scientist in 2010. His work at Philips was focused on the investigation of metal-oxides semiconductors for LEDs, ferroelectrics and graphene opto-electronics. In 2014 he moved to Max-Planck Institute for Polymer Research and was awarded with the Sofja Kovalevskaja Award from the Alexander von Humboldt Foundation to pursue his independent research on organic multi-ferroics. His research at the moment is focused on electronic devices based on organic/inorganic hybrids. He is co-author of numerous papers and holder of eight patents.

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• CONTACTMazen E. Mero

​ABSTRACT: The rediscovered metal halide perovskite semiconductor system has the potential to be extremely transformative for all optoelectronic devices, especially photovoltaics (PVs). Perovskites show a unique tolerance to crystalline defects that cause trouble in most other semiconductors. Therefore the potential offered is that very high efficiency PVs can be fabricated in extremely fast and inexpensive ways, thus offering a revolution for the solar industry and a direct route toward producing the world’s energy with a simple and clean technology.  Long-term durability of the devices is the critical remaining challenge to be solved. Two examples of major instabilities in device performance are the volatility of the organic cation and the specific crystal habit in which the material embodies. 

Nanoscale versions (often termed quantum dots (QDs)) of the all-inorganic metal halide perovskite (CsPbI3) tend to retain the desired perovskite phase due to strain effects at the surface of the QDs whereas conventional films of the same material “relax” to an orthorhombic non-perovskite structure at room temperature. Therefore, these QDs potentially solve both of the instability issues. This customizable new nanomaterial system has incredible potential for many applications in optoelectronics, including photovoltaics, LEDs, displays and lasers. This talk will cover several related projects that describe the phase stability of all-inorganic perovskite QDs, surface treatments to manipulate transport in perovskite QD arrays, cation exchange-based synthesis of homogeneous alloyed QDs, our latest work in QD solar cell device architectures, and doping of perovskite QD films for manipulating electronic properties (enhanced mobility).


BIOGRAPHY: Joseph M. Luther current leads the Molecular and Catalysis Sciences group within the Chemical Materials and Nanoscience Center at the National Renewable Energy Laboratory (NREL). For the past ten years, he has focused his research efforts on developing low cost, solution processed photovoltaic technologies. His research interests lie in the growth, electronic coupling and electrical devices formed from colloidal nanocrystals, and understanding of fundamentals of perovskite-based solar cells. 

He obtained B.S. degrees in Electrical and Computer Engineering from North Carolina State University in 2001. At NCSU he began his research career under the direction of Salah Bedair, who was the first to fabricate a tandem junction solar cell. Luther worked on growth and characterization high-efficiency III-V materials including GaN and GaAsN. His interest in photovoltaics sent him to the National Renewable Energy Laboratory (NREL) to pursue graduate work. He obtained a Masters of Science in Electrical Engineering from the University of Colorado while researching effects of defects in bulk semiconductors in NREL’s Measurements and Characterization Division. In 2005, He joined Art Nozik’s group at NREL and studied semiconductor nanocrystals for multiple exciton generation for which he was awarded a Ph.D. in Physics from Colorado School of Mines. As a postdoctoral fellow under the direction Paul Alivisatos at the University of California and Lawrence Berkeley National Laboratory, he studied synthesis and unique ion exchange reaction and resulting novel properties of colloidal nanomaterials. In 2009, he rejoined NREL as a senior research scientist.

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• CONTACTMazen E. Mero

​ABSTRACT: The energy source shortage has become a severe issue and solving the problem with renewable and sustainable energy is the primary trend for researchers. Among the new generation energy storage, lithium-sulfur (Li-S) battery stands out for its low cost, high theoretical capacity, and environmentally friendly properties. Intensive researches have been focusing on this system and great improvement has been achieved. However, several problems still need to be resolved for its practical application, especially for the “shuttle effect” issue coming from the dissolved intermediate polysulfides, which could cause the rapid decay of the battery capacity and lead to a low Coulombic efficiency (CE). To eliminate these issues, several methods are proposed in this dissertation, including using interlayers, modifying separators, and protecting the lithium anode.

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• CONTACTMazen E. Mero

​ABSTRACT: The research in the Fang Laboratory aims to open new frontiers in chemical and biological discovery through the development and use of novel optical imaging platforms, which provide sub-diffraction-limited spatial resolution, high angular resolution (for anisotropic imaging probes), excellent detectability, and/or nanometer localization precision for single molecules and nanoparticles. 

• Rotational Tracking: The knowledge of rotational dynamics in and on live cells remains highly limited due to technical limitations. The Single Particle Orientation and Rotational Tracking (SPORT) techniques have been developed in the Fang Laboratory to acquire accurate measurements of anisotropic plasmonic gold nanorods in complex cellular environments. Rich information in five dimensions, including the x, y, z coordinates and the two orientation angles (azimuthal angle j and polar angle q, as defined in the figure) of the probe’s transition dipole, can be obtained from SPORT experiments. The SPORT technique is capable of extracting important information (including rotational rates, modes, and directions) on the characteristic rotational dynamics involved in cellular processes, such as adhesion, endocytosis, and transport of functionalized nanoparticles, as may be relevant to drug delivery and viral entry.
  
  
• Single Molecule Catalysis: Real time imaging of single catalyst active sites in situ enables mechanistic studies on fundamental reaction steps under actual turnover operando conditions; these studies have enormous potential impact in establishing intimate structure-property relationships from which to build better (faster, cleaner, cheaper) catalysts. Our research aims to design catalytic platforms for single molecule imaging and reveal molecular dynamics (including diffusion, adsorption, and chemical conversion, as well as their coupling) on the nanocatalyst surfaces or in the nanoporous structures at the single-molecule level. 
  

Representative Publications:

BIOGRAPHY: Ning Fang received his B.S. from Xiamen University, China in 1998 and his Ph.D. from the University of British Columbia, Canada in the group of Prof. David D.Y. Chen in 2006 and was a Postdoctoral Associate at Iowa State University and Ames Laboratory, US Department of Energy with Prof. Edward S. Yeung from 2006 to 2008. In 2008, he started his first faculty position in the Department of Chemistry at Iowa State University. In 2015, he moved his laboratory to the Department of Chemistry at Georgia State University. The research in the Fang Laboratory aims to open new frontiers in chemical and biological discovery through the development and use of novel optical imaging platforms, which provide sub-diffraction-limited spatial resolution, high angular resolution (for anisotropic imaging probes), excellent detectability, and/or nanometer localization precision for single molecules and nanoparticles. 

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• CONTACTMazen E. Mero