Interface defects in a-Si:H/c-Si heterojunction solar cells

被引:8
作者
Defresne, A. [1 ]
Plantevin, O. [1 ]
Sobkowicz, I. P. [2 ,3 ]
Bourcois, J. [1 ]
Roca i Cabarrocas, P. [2 ]
机构
[1] Univ Paris 11, Ctr Sci Nucl & Sci Mat, CNRS, IN2P3,UMR 8609, F-91405 Orsay, France
[2] Ecole Polytech, CNRS, Lab Phys Interfaces & Couches Minces, UMR 7647, F-91128 Palaiseau, France
[3] Total New Energies, F-92078 Paris, France
关键词
Solar cells; Heterojunction; Irradiation defects; Semiconductors; Thin layers; PHOTOLUMINESCENCE; IMPLANTATION;
D O I
10.1016/j.nimb.2015.04.009
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The ability to incorporate a low concentration of defects at different near-surface or interface locations in a silicon heterojunction solar cell is reported here using argon ion implantation. Optical properties of the irradiated layers are addressed using spectroscopic ellipsometry while non-radiative recombinations through defects are addressed using photoconductance and photoluminescence measurements. Low energy ion irradiation at 1 key under fluences up to 7 x 10(13) cm(-2) induces no cell degradation while higher ion energies associated to larger penetration depths close to the amorphous/crystalline interface show increased degradation with ion fluence. This behavior allows to estimate some interface defect concentration threshold for cell degradation. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:133 / 136
页数:4
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