The effect of Mo back contact on Na out-diffusion and device performance of Mo/Cu(In,Ga)Se2/CdS/ZnO solar cells

被引:22
作者
Al-Thani, HA [1 ]
Hasoon, FS [1 ]
Young, M [1 ]
Asher, S [1 ]
Alleman, JL [1 ]
Al-Jassim, MM [1 ]
Williamson, DL [1 ]
机构
[1] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA
来源
CONFERENCE RECORD OF THE TWENTY-NINTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE 2002 | 2002年
关键词
D O I
10.1109/PVSC.2002.1190666
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Molybdenum thin films were deposited on soda lime glass (SLG) substrates using direct-current planar magnetron sputtering with a sputtering power density of 1.2 W/cm(2). The working gas (Ar) pressure was varied from 0.6 to 16 mtorr to induce changes in the Mo films' morphology and microstructure. Thin films of Cu(In,Ga)Se-2 (CIGS) were deposited on the Mo-coated glass using the 3-stage co-evaporation process. The morphology of both the Mo-coated SLG and the CIGS thin films,grown on it was examined using high-resolution scanning electron microscopy. Na was depth profiled in the Mo and CIGS films by secondary ion mass spectrometry. The device performance was evaluated under standard conditions of 1000 W/m(2) and 25degreesC. Optimum device performance is found for an intermediate Mo sputtering pressure.
引用
收藏
页码:720 / 723
页数:4
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