selected publications
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chapter
- Quantum Confined Semiconductors for Enhancing Solar Photoconversion through Multiple Exciton Generation. RSC Energy and Environment Series. 345-378. 2014
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conference proceeding
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Synthesis and spectroscopic evaluation of PbS quantum dots emitting at 1300 nm for optimized imaging in optical window II.
Proceedings of SPIE.
2016
- Quantum dot solids with well-controlled electronic properties via halide passivation. ACS National Meeting Book of Abstracts. 2014
- Multiple Exciton Generation Solar Cells: Effects of Nanocrystal Shape on Quantum Efficiency. 1077-1079. 2014
- Approaches to future generation photovoltaics and solar fuels: Multiple exciton generation in quantum dots, quantum dot arrays, molecular singlet fission, and quantum dot solar cells. ACS National Meeting Book of Abstracts. 2012
- Third generation solar cells for PV and solar fuels based on quantum dots and quantum dot arrays. ACS National Meeting Book of Abstracts. 2011
- OPTICAL CHARACTERIZATION AND MODELING OF THE LEAD CHALCOGENIDE QUANTUM DOT SOLAR CELL: A RATIONAL APPROACH TO DEVICE DEVELOPMENT AND MULTIPLE EXCITON GENERATION. Conference Record IEEE Photovoltaic Specialists Conference. 2010
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THIRD GENERATION PHOTOVOLTAICS: MULTIPLE EXCITON GENERATION IN COLLOIDAL QUANTUM DOTS, QUANTUM DOT ARRAYS, AND QUANTUM DOT SOLAR CELLS.
Conference Record IEEE Photovoltaic Specialists Conference.
370-375.
2010
- Photoconductivity of arrays of semiconductor nanocrystals determined by THz spectroscopy.. ACS National Meeting Book of Abstracts. U728-U728. 2005
- Conductivity in disordered solids: What can THz spectroscopy tell us?. ACS National Meeting Book of Abstracts. U291-U291. 2003
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Transient photoconductivity in CdSe nanoparticles and nanocrystalline TiO2 as measured by time-resolved terahertz spectroscopy.
Proceedings of SPIE.
64-69.
2003
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Conductivity in CdSe quantum dots and TiO2 nanoparticles: What can THz spectroscopy tell us?.
340-345.
2003
- Exploring sub-picosecond dynamics in the far-infrared with THz spectroscopy. Springer Series in Chemical Physics. 407-411. 2002
- Photoconductivity of dye-sensitized titanium dioxide films measured by time-resolved THz spectroscopy (TRTS). Springer Series in Chemical Physics. 331-333. 2002
- Size dependent photoconductivity in CdSe nanoparticles as measured by time-resolved THz spectroscopy. Springer Series in Chemical Physics. 298-300. 2002
- Low frequency, collective solvent dynamics probed with time-resolved THz spectroscopy. ACS Symposium Series. 44-57. 2000
- Two-dimensional time-resolved THz spectroscopy of solvent response to photoexcitation. Springer Series in Chemical Physics. 522-524. 2000
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Synthesis and spectroscopic evaluation of PbS quantum dots emitting at 1300 nm for optimized imaging in optical window II.
Proceedings of SPIE.
2016
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journal article
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Dynamic Ligand Surface Chemistry of Excited PbS Quantum Dots..
Journal of Physical Chemistry Letters.
2291-2297.
2020
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Origin of Broad-Band Emission and Impact of Structural Dimensionality in Tin-Alloyed Ruddlesden-Popper Hybrid Lead Iodide Perovskites.
ACS Energy Letters.
347-352.
2020
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Ultrafast Reaction Mechanisms in Perovskite Based Photocatalytic C-C Coupling.
ACS Energy Letters.
566-571.
2020
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Individual Electron and Hole Mobilities in Lead-Halide Perovskites Revealed by Noncontact Methods.
ACS Energy Letters.
47-55.
2020
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Spin-dependent charge transport through 2D chiral hybrid lead-iodide perovskites..
Science Advances.
eaay0571.
2019
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Enhanced photoredox activity of CsPbBr3 nanocrystals by quantitative colloidal ligand exchange..
Journal of Chemical Physics.
204305.
2019
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Both Free and Trapped Carriers Contribute to Photocurrent of Sb2Se3 Solar Cells.
Journal of Physical Chemistry Letters.
4881-4887.
2019
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Ultrafast probes at the interfaces of solar energy conversion materials..
Physical Chemistry Chemical Physics.
16399-16407.
2019
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Monitoring Electron-Phonon Interactions in Lead Halide Perovskites Using Time-Resolved THz Spectroscopy.
ACS Nano.
8826-8835.
2019
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Atomically Thin Metal Sulfides.
Journal of the American Chemical Society.
12121-12127.
2019
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SOLAR CELLS Carrier lifetimes of > 1 mu s in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells.
Science.
475-+.
2019
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Enhanced Charge Transport in 2D Perovskites via Fluorination of Organic Cation.
Journal of the American Chemical Society.
5972-5979.
2019
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Designing Janus Ligand Shells on PbS Quantum Dots using Ligand-Ligand Cooperativity.
ACS Nano.
3839-3846.
2019
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Sensitizing Singlet Fission with Perovskite Nanocrystals.
Journal of the American Chemical Society.
4919-4927.
2019
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Influence of One Specific Carbon-Carbon Bond on the Quality, Stability, and Photovoltaic Performance of Hybrid Organic-Inorganic Bismuth Iodide Materials.
ACS Applied Energy Materials.
1579-1587.
2019
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Infrared Quantum Dots: Progress, Challenges, and Opportunities.
ACS Nano.
939-953.
2019
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Lead-Halide Perovskites for Photocatalytic alpha-Alkylation of Aldehydes.
Journal of the American Chemical Society.
733-738.
2019
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n-Type PbSe Quantum Dots via Post-Synthetic Indium Doping.
Journal of the American Chemical Society.
13753-13763.
2018
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Enhanced Multiple Exciton Generation in PbSICdS Janus-like Heterostructured Nanocrystals.
ACS Nano.
10084-10094.
2018
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Ultrafast exciton many-body interactions and hot-phonon bottleneck in colloidal cesium lead halide perovskite nanocrystals.
Physical Review B.
2018
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Impact of Layer Thickness on the Charge Carrier and Spin Coherence Lifetime in Two-Dimensional Layered Perovskite Single Crystals.
ACS Energy Letters.
2273-2279.
2018
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Stable Formamidinium-Based Perovskite Solar Cells via In Situ Grain Encapsulation.
Advanced Energy Materials.
2018
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Feature issue introduction: light, energy and the environment, 2017.
Optics Express.
A636-A639.
2018
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Optical Absorbance Enhancement in PbS QD/Cinnamate Ligand Complexes.
Journal of Physical Chemistry Letters.
3425-3433.
2018
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Electron-Phonon Coupling and Resonant Relaxation from 1D and 1P States in PbS Quantum Dots.
ACS Nano.
6263-6272.
2018
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Excitonic Effects in Methylammonium Lead Halide Perovskites.
Journal of Physical Chemistry Letters.
2595-2603.
2018
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Curtailing Perovskite Processing Limitations via Lamination at the Perovskite/Perovskite Interface.
ACS Energy Letters.
1192-1197.
2018
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Control of Energy Flow Dynamics between Tetracene Ligands and PbS Quantum Dots by Size Tuning and Ligand Coverage.
Nano Letters.
865-873.
2018
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Efficient Steplike Carrier Multiplication in Percolative Networks of Epitaxially Connected PbSe Nanocrystals.
ACS Nano.
378-384.
2018
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Facet-Specific Ligand Interactions on Ternary AgSbS2 Colloidal Quantum Dots.
Chemistry - A European Journal.
17707-17713.
2017
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Enhanced Sb2Se3 solar cell performance through theory-guided defect control.
Progress in Photovoltaics.
861-870.
2017
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Enhanced mobility CsPbI3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells.
Science Advances.
2017
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Synthesis and Spectroscopy of Silver-Doped PbSe Quantum Dots.
Journal of the American Chemical Society.
10382-10394.
2017
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Tuning colloidal quantum dot band edge positions through solution-phase surface chemistry modification.
Nature Communications.
2017
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Extrinsic ion migration in perovskite solar cells.
Energy and Environmental Science.
1234-1242.
2017
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Multiple exciton generation for photoelectrochemical hydrogen evolution reactions with quantum yields exceeding 100%.
Nature Energy.
2017
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Combination of Cation Exchange and Quantized Ostwald Ripening for Controlling Size Distribution of Lead Chalcogenide Quantum Dots.
Chemistry of Materials.
3615-3622.
2017
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Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells.
Scientific Reports.
2017
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Characterization of basic physical properties of Sb2Se3 and its relevance for photovoltaics.
Frontiers of Optoelectronics.
18-30.
2017
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Tandem Solar Cells from Solution-Processed CdTe and PbS Quantum Dots Using a ZnTe-ZnO Tunnel Junction.
Nano Letters.
1020-1027.
2017
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Top and bottom surfaces limit carrier lifetime in lead iodide perovskite films.
Nature Energy.
2017
-
Quantum Dot Solar Cell Fabrication Protocols.
Chemistry of Materials.
189-198.
2017
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Large polarization-dependent exciton optical Stark effect in lead iodide perovskites.
Nature Communications.
2016
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Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects.
Journal of Physical Chemistry Letters.
2879-2887.
2016
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Status and Prognosis of Future-Generation Photoconversion to Photovoltaics and Solar Fuels.
ACS Energy Letters.
344-347.
2016
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Direct Observation of Photoexcited Hole Localization in CdSe Nanorods.
ACS Energy Letters.
76-81.
2016
-
Roadmap on optical energy conversion.
Journal of Optics.
2016
-
Controlling carrier dynamics using quantum-confined semiconductor nanocrystals Preface.
Chemical Physics.
1-1.
2016
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Nongeminate radiative recombination of free charges in cation-exchanged PbS quantum dot films.
Chemical Physics.
75-80.
2016
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All-Inorganic Germanium Nanocrystal Films by Cationic Ligand Exchange.
Nano Letters.
1949-1954.
2016
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Quasi-Direct Optical Transitions in Silicon Nanocrystals with Intensity Exceeding the Bulk.
Nano Letters.
1583-1589.
2016
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Revisiting the Valence and Conduction Band Size Dependence of PbS Quantum Dot Thin Films.
ACS Nano.
3302-3311.
2016
-
Size-Dependent Exciton Formation Dynamics in Colloidal Silicon Quantum Dots.
ACS Nano.
2316-2323.
2016
-
In situ spectroscopic characterization of a solution-phase X-type ligand exchange at colloidal lead sulphide quantum dot surfaces.
Chemical Communications.
13893-13896.
2016
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Observation of a hot-phonon bottleneck in lead-iodide perovskites.
Nature Photonics.
53-59.
2016
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Comparison of Recombination Dynamics in CH3NH3PbBr3 and CH3NH3PbI3 Perovskite Films: Influence of Exciton Binding Energy.
Journal of Physical Chemistry Letters.
4688-4692.
2015
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Semiconductor interfacial carrier dynamics via photoinduced electric fields.
Science.
1061-1065.
2015
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Exploration of Metal Chloride Uptake for Improved Performance Characteristics of PbSe Quantum Dot Solar Cells.
Journal of Physical Chemistry Letters.
2892-2899.
2015
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Air-Stable and Efficient PbSe Quantum-Dot Solar Cells Based upon ZnSe to PbSe Cation-Exchanged Quantum Dots.
ACS Nano.
8157-8164.
2015
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Low surface recombination velocity in solution-grown CH3NH3PbBr3 perovskite single crystal.
Nature Communications.
2015
-
Preparation of Cd/Pb Chalcogenide Heterostructured Janus Particles via Controllable Cation Exchange.
ACS Nano.
7151-7163.
2015
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Multiple exciton generation in quantum dots versus singlet fission in molecular chromophores for solar photon conversion.
Philosophical Transactions A: Mathematical, Physical and Engineering Sciences.
2015
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Synthetic Conditions for High-Accuracy Size Control of PbS Quantum Dots.
Journal of Physical Chemistry Letters.
1830-1833.
2015
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Metal Halide Solid-State Surface Treatment for High Efficiency PbS and PbSe QD Solar Cells.
Scientific Reports.
2015
-
Quantum Confined-Electron Phonon Interaction in Silicon Nanocrystals.
Nano Letters.
1511-1516.
2015
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Charge Generation in PbS Quantum Dot Solar Cells Characterized by Temperature-Dependent Steady-State Photoluminescence.
ACS Nano.
12814-12825.
2014
-
The promise and challenge of nanostructured solar cells.
Nature Nanotechnology.
951-954.
2014
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One-Step Deposition of Photovoltaic Layers Using Iodide Terminated PbS Quantum Dots.
Journal of Physical Chemistry Letters.
4002-4007.
2014
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PbSe Quantum Dot Solar Cells with More than 6% Efficiency Fabricated in Ambient Atmosphere.
Nano Letters.
6010-6015.
2014
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Carrier Transport in PbS and PbSe QD Films Measured by Photoluminescence Quenching.
Journal of Physical Chemistry C.
16228-16235.
2014
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Ultrafast Electrical Measurements of Isolated Silicon Nanowires and Nanocrystals.
Journal of Physical Chemistry Letters.
2050-2057.
2014
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Synthesis and Spectroscopy of PbSe Fused Quantum-Dot Dimers.
Journal of the American Chemical Society.
4670-4679.
2014
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Diffusion-Controlled Synthesis of PbS and PbSe Quantum Dots with in Situ Halide Passivation for Quantum Dot Solar Cells.
ACS Nano.
614-622.
2014
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Coherent Exciton Delocalization in Strongly Coupled Quantum Dot Arrays.
Nano Letters.
4862-4869.
2013
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Origin of the temperature dependence of the band gap of PbS and PbSe quantum dots.
Solid State Communications.
49-54.
2013
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Size and Composition Dependent Multiple Exciton Generation Efficiency in PbS, PbSe, and PbSxSe1-x Alloyed Quantum Dots.
Nano Letters.
3078-3085.
2013
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Third Generation Photovoltaics based on Multiple Exciton Generation in Quantum Confined Semiconductors.
Accounts of Chemical Research.
1252-1260.
2013
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Lead Sulfide Nanocrystal Quantum Dot Solar Cells with Trenched ZnO Fabricated via Nanoimprinting.
ACS Applied Materials and Interfaces.
3803-3808.
2013
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Measurement of the reaction O-17(alpha,n)Ne-20 and its impact on the s process in massive stars.
Physical Review C.
2013
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Electron transfer in hydrogenated nanocrystalline silicon observed by time-resolved terahertz spectroscopy.
Physical Review B.
2013
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Improvement in carrier transport properties by mild thermal annealing of PbS quantum dot solar cells.
Applied Physics Letters.
2013
-
Quantum dots for next-generation photovoltaics.
Materials Today.
508-515.
2012
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Sharp exponential band tails in highly disordered lead sulfide quantum dot arrays.
Physical review B: Condensed matter and materials physics.
2012
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Effect of Solar Concentration on the Thermodynamic Power Conversion Efficiency of Quantum-Dot Solar Cells Exhibiting Multiple Exciton Generation.
Journal of Physical Chemistry Letters.
2857-2862.
2012
-
Quantum beats due to excitonic ground-state splitting in colloidal quantum dots.
Physical review B: Condensed matter and materials physics.
2012
-
Strained Interface Defects in Silicon Nanocrystals.
Advanced Materials for Optics and Electronics.
3223-3232.
2012
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Control of PbSe Quantum Dot Surface Chemistry and Photophysics Using an Alkylselenide Ligand.
ACS Nano.
5498-5506.
2012
-
The Subtle Chemistry of Colloidal, Quantum-Confined Semiconductor Nanostructures.
ACS Nano.
4573-4579.
2012
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Comparing the Fundamental Physics and Device Performance of Transparent, Conductive Nanostructured Networks with Conventional Transparent Conducting Oxides.
Advanced Energy Materials.
353-360.
2012
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Comparison of Carrier Multiplication Yields in PbS and PbSe Nanocrystals: The Role of Competing Energy-Loss Processes.
Nano Letters.
622-628.
2012
-
Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell.
Science.
1530-1533.
2011
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Single-walled carbon nanotubes as base material for THz photoconductive switching: a theoretical study from input power to output THz emission.
Optics Express.
15077-15089.
2011
-
n-Type Transition Metal Oxide as a Hole Extraction Layer in PbS Quantum Dot Solar Cells.
Nano Letters.
3263-3266.
2011
-
A p-Type Quantum Dot/Organic Donor: Acceptor Solar-Cell Structure for Extended Spectral Response.
Advanced Energy Materials.
528-533.
2011
-
Multiple Exciton Generation in Semiconductor Quantum Dots.
Journal of Physical Chemistry Letters.
1282-1288.
2011
-
Emission Quenching in PbSe Quantum Dot Arrays by Short-Term Air Exposure.
Journal of Physical Chemistry Letters.
889-893.
2011
-
Anomalous Independence of Multiple Exciton Generation on Different Group IV-VI Quantum Dot Architectures.
Nano Letters.
1623-1629.
2011
-
Quantum Dot Size Dependent J-V Characteristics in Heterojunction ZnO/PbS Quantum Dot Solar Cells.
Nano Letters.
1002-1008.
2011
-
Tuning the Synthesis of Ternary Lead Chalcogenide Quantum Dots by Balancing Precursor Reactivity.
ACS Nano.
183-190.
2011
-
Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells.
Chemical Reviews.
6873-6890.
2010
-
Flowing versus Static Conditions for Measuring Multiple Exciton Generation in PbSe Quantum Dots.
Journal of Physical Chemistry C.
17486-17500.
2010
-
Stability Assessment on a 3% Bilayer PbS/ZnO Quantum Dot Heterojunction Solar Cell.
Advanced Materials.
3704-+.
2010
- Synthesis and characterization of Pb-chalcogenide dimer structures. ACS National Meeting Book of Abstracts. 2010
- Third generation solar photon conversion to electricity and fuel: Multiple exciton generation in colloidal quantum dots, quantum dot arrays, and solar sells. ACS National Meeting Book of Abstracts. 2010
-
Absolute Photoluminescence Quantum Yields of IR-26 Dye, PbS, and PbSe Quantum Dots.
Journal of Physical Chemistry Letters.
2445-2450.
2010
-
Comparing Multiple Exciton Generation in Quantum Dots To Impact Ionization in Bulk Semiconductors: Implications for Enhancement of Solar Energy Conversion.
Nano Letters.
3019-3027.
2010
-
Solar cells from colloidal nanocrystals: Fundamentals, materials, devices, and economics.
Current Opinion in Colloid and Interface Science.
245-259.
2009
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Variations in the Quantum Efficiency of Multiple Exciton Generation for a Series of Chemically Treated PbSe Nanocrystal Films.
Nano Letters.
836-845.
2009
-
Photogenerated Free Carrier Dynamics in Metal and Semiconductor Single-Walled Carbon Nanotube Films.
Nano Letters.
4238-4242.
2008
-
Determining the Internal Quantum Efficiency of PbSe Nanocrystal Solar Cells with the Aid of an Optical Model.
Nano Letters.
3904-3910.
2008
-
Multiple exciton generation in semiconductor nanocrystals: Toward efficient solar energy conversion.
Laser and Photonics Reviews.
377-399.
2008
-
Schottky Solar Cells Based on Colloidal Nanocrystal Films.
Nano Letters.
3488-3492.
2008
-
Transparent conductive single-walled carbon nanotube networks with precisely tunable ratios of semiconducting and metallic nanotubes.
ACS Nano.
1266-1274.
2008
-
Structural, optical and electrical properties of self-assembled films of PbSe nanocrystals treated with 1,2-ethanedithiol.
ACS Nano.
271-280.
2008
-
Multiple exciton generation in colloidal silicon nanocrystals.
Nano Letters.
2506-2512.
2007
-
Multiple exciton generation in films of electronically coupled PbSe quantum dots.
Nano Letters.
1779-1784.
2007
-
Photoinduced charge carrier generation in a poly(3-hexylthiophene) and methanofullerene bulk heterojunction investigated by time-resolved terahertz spectroscopy.
Journal of Physical Chemistry B.
25462-25471.
2006
-
Time-resolved photoconductivity of PbSe nanocrystal arrays.
Journal of Physical Chemistry B.
25455-25461.
2006
-
PbTe colloidal nanocrystals: Synthesis, characterization, and multiple exciton generation.
Journal of the American Chemical Society.
3241-3247.
2006
-
Terahertz spectroscopy of solid serine and cysteine.
Chemical Physics Letters.
65-70.
2006
-
Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots.
Nano Letters.
865-871.
2005
-
Absorption cross-section and related optical properties of colloidal InAs quantum dots.
Journal of Physical Chemistry B.
7084-7087.
2005
-
Comparative OHD-RIKES and THz-TDS probes of ultrafast structural dynamics in molecular liquids.
Journal of Physical Chemistry A.
9348-9360.
2004
-
Coherent terahertz emission from ferromagnetic films excited by femtosecond laser pulses.
Applied Physics Letters.
3465-3467.
2004
-
Electronic coupling in InP nanoparticle arrays.
Nano Letters.
1695-1699.
2003
-
Carrier localization and cooling in dye-sensitized nanocrystalline titanium dioxide.
Journal of Physical Chemistry B.
11716-11719.
2002
-
Progress towards two-dimensional biomedical imaging with THz spectroscopy.
Physics in Medicine and Biology.
3841-3846.
2002
-
Size-dependent photoconductivity in CdSe nanoparticles as measured by time-resolved terahertz spectroscopy.
Nano Letters.
983-987.
2002
-
Terahertz spectroscopy.
Journal of Physical Chemistry B.
7146-7159.
2002
-
Measuring intramolecular charge transfer via coherent generation of THz radiation.
Journal of Physical Chemistry A.
878-883.
2002
-
Subpicosecond carrier dynamics in low-temperature grown GaAs as measured by time-resolved terahertz spectroscopy.
Journal of Applied Physics.
5915-5923.
2001
-
Ballistic trajectories of optical wave packets within microcavities.
Physical Review A.
art. no.-023808.
2001
-
Using the finite-difference time-domain pulse propagation method to simulate time-resolved THz experiments.
Journal of Chemical Physics.
2903-2909.
2001
-
Transient photoconductivity in GaAs as measured by time-resolved terahertz spectroscopy.
Physical review B: Condensed matter and materials physics.
15764-15777.
2000
-
Measurement of electromagnetic radiation emitted during rapid intramolecular electron transfer.
Journal of the American Chemical Society.
11541-11542.
2000
-
Some results for the Ballone-Pastore-Galli modification of the Martynov-Sarkisov closure for hard spheres.
Molecular Physics.
1083-1084.
1997
-
Dynamic Ligand Surface Chemistry of Excited PbS Quantum Dots..
Journal of Physical Chemistry Letters.
2291-2297.
2020