Optimization of Phase-Engineered a-Si:H-Based Multi-Junction Solar Cells: Second Annual Technical Status Report, January 2003--January 2004

Wronski, C. R. ; Collins, R. W. ; Vlahos, V. ; Pearce, J. M. ; Deng, J. ; Albert, M. ; Ferreira, G. M. ; Chen, C.

National Renewable Energy Laboratory (U.S.)

关键词: Thin Films Pv;    Solar Cells;    Quantum Efficiency;    36 Materials Science;    Construction;   

DOI  :  10.2172/15009502
RP-ID  :  NREL/SR-520-36695
RP-ID  :  AC36-99-GO10337
RP-ID  :  15009502

美国|英语

来源: UNT Digital Library

【 摘 要 】

This subcontract report entails investigation of engineering improvements in the performance and stability of solar cells in a systematic way. It consists of the following four tasks: Task 1-Materials research and device development; Task 2-Process improvement directed by real-time diagnostics; Task 3-Device loss mechanisms; and Task 4-Characterization strategies for advanced materials. The real-time spectroscopic ellipsometry (RTSE) multichamber is near completion, and trial depositions with a-Si:H will begin shortly. Construction of the new dual beam photoconductivity (DBP) apparatus has been completed, and the new capabilities are being used in studies on a-Si:H thin films. A new apparatus is being constructed for in-depth studies on the mechanisms limiting the performance of a-Si:H solar cells and the two track studies (cells and films) of the Staebler-Wronski Effect. The capabilities include the ability to integrate the cell characteristics including the quantum efficiency, at different temperatures on both p-i-n and n-i-p solar cells.