TY - JOUR
T1 - Infrared modulation spectroscopy of interfaces in amorphous silicon solar cells
AU - Zhu, Kai
AU - Schiff, E. A.
AU - Ganguly, G.
N1 - Funding Information:
This research has been supported by the Thin Film Photovoltaics Partnership of the US National Renewable Energy Laboratory.
PY - 2002/4
Y1 - 2002/4
N2 - We report infrared depletion modulation spectra for near-interface states in a-Si pin solar cells. The effect of additional visible illumination (optical bias) was explored as a means to separate the spectra for n/i and p/i interface states. We found a sharp, optical bias-induced spectral line near 0.8 eV. We attribute this line due to internal optical transitions of dopant-defect complexes in the a-SiC:H:B p-layer of the cells. We discuss the spatial location of the depletion modulation regions, and suggest that this location shifts across the n/i and p/i interfaces for cells with differing deposition and illumination conditions.
AB - We report infrared depletion modulation spectra for near-interface states in a-Si pin solar cells. The effect of additional visible illumination (optical bias) was explored as a means to separate the spectra for n/i and p/i interface states. We found a sharp, optical bias-induced spectral line near 0.8 eV. We attribute this line due to internal optical transitions of dopant-defect complexes in the a-SiC:H:B p-layer of the cells. We discuss the spatial location of the depletion modulation regions, and suggest that this location shifts across the n/i and p/i interfaces for cells with differing deposition and illumination conditions.
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U2 - 10.1016/S0022-3093(01)01136-X
DO - 10.1016/S0022-3093(01)01136-X
M3 - Article
AN - SCOPUS:18244411934
SN - 0022-3093
VL - 299-302
SP - 1162
EP - 1166
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - PART 2
ER -