Title :
Amorphous diamondlike carbon films-a hard optical material for silicon solar cells
Author :
Alaluf, M. ; Appelbaum, J. ; Klibanov, L. ; Brinker, D. ; Scheiman, D. ; Croitoru, N.
Author_Institution :
Dept. of Electr. Eng., Tel Aviv Univ., Israel
Abstract :
Amorphous diamondlike carbon (a:DLC) films are suitable materials to be used as a protective layer and antireflecting coating for silicon solar cells. Microhardness tests show high hardness of about 4700 kg/mm 2. Optical measurements, in the visible light, on silicon solar cells without an antireflecting (AR) coating on which a:DLC was deposited show a significant reduction in reflection of light of about 25~45% as compared to the reflection from the solar cell before deposition of the a:DLC film. The I-V characteristics of solar cells without antireflecting coatings and with a:DLC as an AR coating layer show an improvement in short circuit current (from 107 mA to 116 mA) and in efficiency of the cell by 1% (from 8% to 9%)
Keywords :
antireflection coatings; elemental semiconductors; hardness testing; microhardness; optical films; optical variables measurement; semiconductor device testing; silicon; solar cells; 116 mA; 9 percent; C; I-V characteristics; Si; amorphous diamondlike carbon films; antireflecting coating; microhardness tests; optical measurements; protective layer; reflection; short circuit current; silicon solar cells; Amorphous materials; Coatings; Diamond-like carbon; Optical films; Optical materials; Optical reflection; Organic materials; Photovoltaic cells; Semiconductor films; Silicon;
Conference_Titel :
Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1460-3
DOI :
10.1109/WCPEC.1994.521662
