Title :
The properties of Cu(InGa)Se/sub 2/ solar cells depending on growth conditions of molybdenum films
Author :
Kim, Seok Ki ; Lee, Jeong Chul ; Kang, Ki Whan ; Yoon, Kyung Hoon ; Park, I. Jun ; Song, Jinsoo ; Han, Sang Ok
Author_Institution :
Photovoltaic Res. Center, Korea Inst. of Energy Res., Taejon, South Korea
Abstract :
Molybdenum films were prepared on soda-lime glass substrates by DC magnetron sputtering and its structural, morphological properties, electrical resistivity and optical reflectance were analyzed. The electrical resistivity of the Mo films was monotonically increased with the increase in the gas pressure. The lowest resistivity was 1.2 /spl times/ 10/sup -5/ /spl Omega//spl middot/cm The films grew with preferred orientation along the [110] plane regardless of the sputtering gas pressure The surface morphology of the films changed from rod-shape at lower sputtering pressure to porous nodular shape at higher sputtering pressure. In addition, the optical reflectance of the films increased with decreasing the gas pressure. The best conversion efficiency was obtained from Mo films deposited at about 5 mTorr.
Keywords :
copper compounds; electrical resistivity; gallium compounds; indium compounds; molybdenum; reflectivity; solar cells; sputter deposition; surface morphology; texture; 1.2E-5 ohmcm; Cu(InGa)Se/sub 2/-Mo-Na/sub 2/O/sub 3/-CaO-SiO/sub 2/; DC magnetron sputtering; Na/sub 2/O/sub 3/-CaO-SiO/sub 2/; conversion efficiency; electrical resistivity; growth condition; optical reflectance; porous nodular shape; preferred orientation; soda-lime glass substrate; solar cell; sputtering gas pressure; structural properties; surface morphology;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
