Matthew C. Beard - Senior Scientist
Matthew Beard received a Ph.D. degree in Physical Chemistry from Yale University in 2002 and joined the Chemical and Biosciences Center at NREL in 2003 as a postdoctoral researcher in the group of Arthur Nozik. His research interest spans a large range of important physical chemistry problems relating to photoconversion. This includes charge transport in nanoparticle arrays and organic semiconductors, charge and energy transfer, and size-dependent phenomena in quantum-sized materials. He is currently investigating carrier generation and charge transport in assemblies of semiconductor nanocrystals.
Current Research Activities
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Fundamental exciton dissociation and carrier-relaxation dynamics in semiconductor nanocrystals
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Multiple-exciton generation in semiconductor nanocrystals
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Photoconductivity measurements in thin nanostructured films such as carbon nanotube films and electronically coupled semiconductor nanocrystals
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Ultrafast transient-absorption spectroscopy and pump/probe THz spectroscopy
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Size- and shape-dependent phenomenon in semiconductor nanocrystals.
Experience
| 2003 | National Renewable Energy Laboratory |
| 2002–2003 | National Institute of Standards and Technology. Construction of a hyperspectral far-IR imaging spectrometer; study of liquid dynamics in halogenated benzenes utilizing far-IR and coherent Raman spectroscopies. |
| 1997–2002 | Yale University (Prof. Charles Schmuttenmaer). Ph.D. dissertation title, "Time-resolved THz spectroscopy: Charge transfer, solvent dynamics, and photoconductivity." |
Selected Publications
- Beard MC, Midgett AG, Law, M, Semonin OE, Ellingson RJ, Nozik AJ, “Variations in the Quantum Efficiency of Multiple Exciton Generation for a Series of Chemically Treated PbSe Nanocrystal Films,” Nano. Lett., 9, 836, 2009.
- Law M, Beard MC, Choi S, Luther JM, Hanna M, Nozik AJ, “Determining the Internal Quantum Efficiency of PbSe Nanocrystal Solar Cells with the Aid of an Optical Model,” Nano. Lett., 8, 3904, 2008.
- Beard MC, Blackburn JL, Heben MJ, “Photogenerated free-carrier dynamics in metal and semiconductor single walled carbon nanotube films,” Nano. Lett., 2008.
- Beard MC and Ellingson RJ, “Multiple exciton generation in semiconductor nanocrystals: Toward efficient solar energy conversion,” Laser & Photon. Rev., 2, 377 2008.
NREL Publications
View NREL publications for this staff member.
Other Team Members
Matthew C. Beard |
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