TY - JOUR
T1 - Optically detected photocarrier transport in amorphous silicon
T2 - a review
AU - Devlen, R. I.
AU - Schiff, E. A.
N1 - Funding Information:
The authors are grateful to Jan Tauc for his inspiring scientific leadership, for sharing with them his profound knowledge of the optical properties of solids, for the privilege of working in his laboratory, and for his friendship. The authors also acknowledge many useful discussions with Holger Grahn and thank him for a critical reading of the manuscript. The research of EAS is supported by SERI XG-1-10063-7.
PY - 1992
Y1 - 1992
N2 - Measurements of photocarrier transport in hydrogenated amorphous silicon, a-Si:H, based on optical techniques are reviewed. Picosecond domain measurements on multilayer and p-i-n diode structures are described as representative of the use of structural inhomogeneities to establish the distance scale of the transport. Measurements using diffraction by photoinduced gratings are described as representative of the use of photoinduced inhomogeneities. The relative effects of thermal and photocarrier gratings upon the diffraction measurements are discussed. It is suggested that photocarrier grating measurements can be re-interpreted to yield the band mobility for holes in a-Si:H, and the value of 0.2 cm2/V s is obtained near room temperature.
AB - Measurements of photocarrier transport in hydrogenated amorphous silicon, a-Si:H, based on optical techniques are reviewed. Picosecond domain measurements on multilayer and p-i-n diode structures are described as representative of the use of structural inhomogeneities to establish the distance scale of the transport. Measurements using diffraction by photoinduced gratings are described as representative of the use of photoinduced inhomogeneities. The relative effects of thermal and photocarrier gratings upon the diffraction measurements are discussed. It is suggested that photocarrier grating measurements can be re-interpreted to yield the band mobility for holes in a-Si:H, and the value of 0.2 cm2/V s is obtained near room temperature.
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U2 - 10.1016/S0022-3093(05)80524-1
DO - 10.1016/S0022-3093(05)80524-1
M3 - Review article
AN - SCOPUS:0027108532
VL - 141
SP - 106
EP - 118
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
IS - C
ER -