Three-Dimensionally Structured CdTe Thin Film Photovoltaic Devices with Self-Aligned Back Contacts: Electrodeposition on Interdigitated Electrodes.

Published

June 25, 2009

Author(s)

Daniel Josell, Carlos R. Beauchamp, Suyong S. Jung, Behrang H. Hamadani, Abhishek Motayed, Lee J. Richter, Maureen E. Williams, John E. Bonevich, Alexander J. Shapiro, Nikolai B. Zhitenev, Thomas P. Moffat

Abstract

Cadmium-telluride photovoltaic cells were deposited on substrates patterned with two interdigitated electrodes. Deposition involved application of different potentials to the two electrodes in order to obtain a 3-d gradient of film properties within the films and thus create a photo-active, homojunction device. A co-deposition process yielded near-stoichiometric CdTe over a wide range of potentials. The as-deposited structures have no electrodes on the top surface, which is corrugated as a result of the growth process. Device properties were studied in the as-deposited state. Systematic variation of the geometry of these pre-patterned arrays should improve device performance and enable quantitative measurement and modeling of the performance of these and analogous “third-generation” nanoscale photovoltaic devices.

Citation

Electrochemical and Solid State Letters

Pub Type

Journals

Citation

Josell, D. , Beauchamp, C. , Jung, S. , Hamadani, B. , Motayed, A. , Richter, L. , Williams, M. , Bonevich, J. , Shapiro, A. , Zhitenev, N. and Moffat, T. (2009), Three-Dimensionally Structured CdTe Thin Film Photovoltaic Devices with Self-Aligned Back Contacts: Electrodeposition on Interdigitated Electrodes., Electrochemical and Solid State Letters (Accessed December 5, 2024)