Title :
Photoconductivity properties of C/sub 60/ / a-C superlattice structures as a new material for absorption layers
Author :
Kojima, Nobuaki ; Sugiura, Yusuke ; Yamaguchi, Masafumi
Author_Institution :
Toyota Technol. Inst., Nagoya, Japan
Abstract :
C/sub 60/ / amorphous carbon (a-C) superlattice structures are fabricated by shutter controlled high-vacuum evaporator. From the UV-Visible reflectance/ transmittance measurements, the energy shift of absorption edge is observed in the superlattice structures corresponding with their thickness of C/sub 60/ and a-C layers. The photoconductivity is measured using solar simulating light (AM 1.5) of 100 mW/cm/sup 2/ power density. The photosensitivity ratio of superlattice is 9/spl sim/16.
Keywords :
amorphous semiconductors; carbon; elemental semiconductors; fullerenes; photoconductivity; reflectivity; semiconductor superlattices; ultraviolet spectra; visible spectra; C/sub 60/-C; C/sub 60//a-C superlattice structure; UV-Visible measurement; absorption edge; absorption layer; energy shift; photoconductivity; photosensitivity ratio; reflectance; shutter controlled high-vacuum evaporator; solar simulating light; transmittance;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
