TITLE

Photovoltaic and spectral photoresponse characteristics of n-C/p-C solar cell on a p-silicon substrate

AUTHOR(S)
Krishna, K. M.; Krishna, K.M.; Umeno, M.; Nukaya, Y.; Soga, T.; Jimbo, T.
PUB. DATE
September 2000
SOURCE
Applied Physics Letters;9/4/2000, Vol. 77 Issue 10
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Recent studies have shown the application of amorphous carbon as a semiconductor in C/Si heterojunction photovoltaic solar cells. In this letter, we report the rectifying current-voltage characteristics of the phosphorus-doped carbon/undoped-carbon (n-C/p-C) junction. The p- and n-carbon films were deposited by pyrolysis and ion-beam sputtering, respectively, on a p-Si substrate, using camphor as a natural carbon precursor. The preliminary photovoltaic characteristics of the cell reveals a short-circuit current density of 17.1 mA/cm2, open-circuit voltage of 0.339 V, and photoelectrical conversion efficiency of 1.82%, a reproducible result, under air mass zero and 1 sun illumination conditions. The spectral photoresponse characteristics of the cell of the above configuration was explained in terms of transmission/absorption characteristics of the two individual carbon layers. © 2000 American Institute of Physics.
ACCESSION #
4413145

 

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