Photo of Bertrand Tremolet de Villers

Bertrand Tremolet de Villers

Researcher III-Chemistry

Orcid ID

Bertrand Tremolet de Villers received his Ph.D. in physical chemistry from the University of California, Los Angeles under the supervision of Prof. Benjamin Schwartz. His Ph.D. studies focused on charge generation, transport, and recombination in polymer solar cells. Before moving to NREL, he spent 18 months as a postdoctoral researcher in the group of Prof. Michael Chabinyc in the Materials Department at the University of California, Santa Barbara. There, he studied novel materials for organic electronic devices, including non-fullerene acceptors for organic solar cells and low optical bandgap polymers for near-IR photodetectors.

Research Interests

Tremolet de Villers is currently a postdoctoral researcher in NREL's Chemical and Nanoscience Center studying the lifetime and reliability of photovoltaic devices. Using various opto-electronic and material characterization techniques, he elucidates degradation mechanisms in these systems in order to design better solar cells. All components of the solar-cell degradation are investigated, including photo-chemical degradation of active layer materials, the influence of charge-selective interlayers on reliability, and the deterioration of the contacts.

Featured Work

Pho, T. V.; Toma, F. M.; Tremolet de Villers, B. J.; Wang, S.; Treat, N. D.; Eisenmenger, N. D.; Su, G. M.; Coffin, R. C.; Douglas, J. D.; Fréchet, J. M. J.; et al. (2013). "Decacyclene Triimides: Paving the Road to Universal Non-Fullerene Acceptors for Organic Photovoltaics." Adv. Energy Mater. (4); p. 1301007.

Tremolet de Villers, B. J.; MacKenzie, R. C. I.; Jasieniak, J. J.; Treat, N. D.; Chabinyc, M. L. (2013). "Linking Vertical Bulk-Heterojunction Composition and Transient Photocurrent Dynamics in Organic Solar Cells with Solution-Processed MoO xContact Layers." Adv. Energy Mater. (4); p. 1301290.

Ayzner, A. L.; Doan, S. C.; Tremolet de Villers, B. J.; Tassone, C. J.; Schwartz, B. J. (2012). "Ultrafast Studies of Exciton Migration and Polaron Formation in Sequentially Solution-Processed Conjugated Polymer/Fullerene Quasi-Bilayer Photovoltaics." J. Phys. Chem. Lett. pp. 2281-2287.

Xue, M.; Li, L.; Tremolet de Villers, B. J.; Shen, H.; Zhu, J.; Stieg, A.; Yu, Z.; Schwartz, B. J.; Pei, Q.; Wang, K. (2011). "Charge-carrier Dynamics in Hybrid Plasmonic Organic Solar Cells with Ag Nanoparticles." App. Phys. Lett. (98); p. 253302 .

Mariani, G.; Laghumavarapu, R. B.; Tremolet de Villers, B. J.; Shapiro, J.; Senanayake, P.; Lin, A.; Schwartz, B. J.; Huffaker, D.L. (2010). "Hybrid Conjugated Polymer Solar Cells Using Patterned GaAs Nanopillars." App. Phys. Lett. (97); p. 013107 .

Tremolet de Villers, B. J.; Tassone, C. J.; Tolbert, S. H.; Schwartz, B. J. (2009). "Improving the Reproducibility of P3HT:PCBM Solar Cells by Controlling the PCBM/Cathode Interface." J. Phys. Chem. C (113); pp. 18978-18982.

Tremolet de Villers, B. J.; Schwartz, B. J. (2007). "Destruction of Amplified Spontaneous Emission via Chemical Doping at Low Work-Function Metal/Conjugated Polymer Interfaces." App. Phys. Lett. (90); p. 091106.