Kai Zhu - Research Scientist

phone: 303-384-6353
email: Kai.Zhu@nrel.gov
At NREL since 2005

Dr. Kai Zhu’s research interests include sensitized solar cells, electrical energy storage, and charge transport and recombination in nanostructured electrode materials. His current research focuses on experimental and theoretical studies aimed at establishing a basic understanding of the principal physical and chemical processes governing the charge-transport dynamics and interfacial charge-transfer kinetics in sensitized, nanostructured solid-state and liquid-junction solar cells. The research involves the use of frequency- and time-resolved photocurrent and photovoltage measurements, electrical impedance spectroscopy, and computer modeling and simulations.

Experience

Education

Selected Publications

1. K. Zhu, T.B. Vinzant, N.R. Neale, and A.J. Frank, “Removing Structural Disorder from Oriented TiO₂ Nanotube Arrays: Reducing the Dimensionality of Transport and Recombination in Dye-Sensitized Solar Cells,”  Nano Lett. 7, 3739 (2007).
2. K. Zhu, N.R. Neale, A. Miedaner, and A.J. Frank, “Enhanced Charge-Collection Efficiencies and Light Scattering in Dye-Sensitized Solar Cells Using Vertically Oriented TiO₂ Nanotubes Arrays,” Nano Lett. 7, 69 (2007).
3. K. Zhu, N. Kopidakis, N.R. Neale, J. van de Lagemaat, and A.J. Frank, “Influence of Surface Area on Charge Transport and Recombination in Dye-Sensitized TiO₂ Solar Cells,”  J. Phys. Chem. B 110, 25174 (2006).
4. P. Yu, K. Zhu, A.G. Norman, S. Ferrere, A.J. Frank, and A.J. Nozik,“Nanocrystalline TiO₂ Solar Cells Sensitized with InAs Quantum Dots,”  J. Phys. Chem. B 110, 25451 (2006).
5. N. Kopidakis, N.R. Neale, K. Zhu,  J. van de Lagemaat, and A.J. Frank,“Spatial Location of Transport-Limiting Traps in TiO₂ Nanoparticle Films in Dye-Sensitized Solar Cells,”  Appl. Phys. Lett. 87, 202106 (2005).

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