2 μm thin film c-Si cells on near-Lambertian Al2O3 substrates

被引:12
作者
Shimokawa, R
Takahashi, T
Takato, H
Ozaki, A
Takano, Y
机构
[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan
[2] Sci Univ Tokyo, Noda, Chiba 2780022, Japan
关键词
solar cells; thin film solar cells; thin film c-Si; alumina ceramics; optical confinement;
D O I
10.1016/S0927-0248(00)00146-X
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
Near-Lambertian Al2O3 substrates, which have the reflectivity of almost 100% and superior optical diffusivity, were newly developed by the doctor-blade technique and 2 mum thin film c-Si cells with the large short-circuit current J(SC) of 15.6 mA/cm(2) (photocurrent J(ph),, of 17.5 mA/cm(2)) were fabricated on the substrates. These cells were prepared by ECR plasma chemical vapor deposition, electron-beam recrystallization, conventional phosphorus diffusion and ITO metallization. The optical confinement in such thin film c-Si cells on the diffuse-reflective substrates was experimentally and theoretically investigated. The theoretical computation presented a strong possibility of higher J(SC) beyond 30 mA/cm(2). (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:593 / 598
页数:6
相关论文
共 8 条
[1]  
BARNETT AM, 1984, P 17 IEEE PHOT SPEC, P747
[2]   Optical confinement in thin film Si solar cells by diffuse reflective substrate [J].
Shimokawa, R ;
Ishii, K ;
Takahashi, T .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1996, 35 (6A) :3445-3456
[3]   SUB-5 MU-M THIN-FILM C-SI SOLAR-CELL AND OPTICAL CONFINEMENT BY DIFFUSE REFLECTIVE-SUBSTRATE [J].
SHIMOKAWA, R ;
ISHII, K ;
NISHIKAWA, H ;
TAKAHASHI, T ;
HAYASHI, Y ;
SAITO, I ;
NAGAMINE, F ;
IGARI, S .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1994, 34 (1-4) :277-283
[4]   New method for the spectral radiance factor measurement of diffuse reflective substrates [J].
Shimokawa, R ;
Saito, I ;
Igari, S .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1997, 36 (3A) :L310-L312
[5]   MICROSPECTROSCOPIC REFLECTANCE MEASUREMENTS OF TEXTURED POLYCRYSTALLINE SI SOLAR-CELLS BY SCANNING SPECTROREFLECTOMETER [J].
SHIMOKAWA, R ;
SAITO, I ;
KATORI, K ;
NAGAMINE, F ;
TSUBOI, H .
JOURNAL OF APPLIED PHYSICS, 1992, 71 (03) :1540-1542
[6]  
SHIMOKAWA R, 1997, P 6 HIGH EFF SOL CEL, P124
[7]   Recrystallization of polycrystalline silicon films on ceramics by electron beam [J].
Takahashi, T ;
Shimokawa, R ;
Matsumoto, Y ;
Ishii, K ;
Sekigawa, T .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1997, 48 (1-4) :327-333
[8]  
TAKATO T, 1998, P 2 WORLD C PHOT SOL, P1810