Amorphous Silicon-based Photovoltaic Generation of Electricity and Photoelectrochemical Generation of Hydrogen

Current research projects include:

• fabrication of high-efficiency triple-junction a-Si based solar cells
• fabrication of nanocrystalline silicon solar cells at high rate 
• fabrication of lightweight and flexible a-Si solar cells and modules on plastic substrates
• fabrication of photoelectrochemical cells and modules for hydrogen generation

Personnel:

Faculty member: Xunming Deng

Visiting Scholars: Mahabala Adiga and Suofa Wang
Postdoctoral Research Associates: Henry Povolny, Chandan Das, Bill Ingler, Jr., Yasuaki Ishikawa
Graduate students: Wenhui Du, Xiesen Yang, Aarohi Vijh, Xinmin Cao, Dinesh Attygalle, Dan Sporar

Research Technician: Terry Kahle and Lauri Edwards

Recent Publications (as of 2000):

· X. Deng, G. Miller, R. Wang, L. Xu and A.D. Compaan, "Study of sputter deposition of ITO films for a-Si:H n-i-p solar cells", in Proc. of Second World Conference and Exhibition on Photovoltaic Solar Energy Conversion and 27th IEEE Photovoltaic Specialist Conference, 700 (1998).

· X. Deng, "Study of triple-junction amorphous silicon alloy solar cells", in American Institute of Physics Conf. Proc. 462, 297 (1998).

· X.B. Liao, J. Walker, and X. Deng, "Effect of buffer layers in narrow bandgap a-SiGe solar cells", in Amorphous and Heterogeneous Silicon Thin Films—Fundamentals to Devices, ed. By H. Branz, R.W. Collins, H. Okamoto, S. Guha, and R. Schropp, MRS Symp. Proc. 557, 779 (1999).

· X. Deng and X.B. Liao, S. Han, H. Povolny and P. Agarwal, "Amorphous silicon and silicon germanium materials for high efficiency triple-junction solar cells", Solar Energy Materials & Solar Cells, 62, 89 (2000).

· H. Povolny, P. Agarwal, S. Han and X. Deng, “Comparison study of a-SiGe solar cells and materials deposited using different hydrogen dilution”, in Amorphous and Heterogenous Silicon Thin Films—2000, ed. by H. Branz, R. Collins, S. Guha, H. Okamoto and M. Stuztzmann, 2000.

· X. Deng, H. Povolny, S. Han and P. Agarwal, “Ultra-lightweight amorphous silicon solar cells deposited on 7.5mm thick stainless steel substrates”, in Proceedings of 28^th IEEE Photovoltaic Specialist Conf. (2000)

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