Effects of Cu in CdS/CdTe solar cells studied with patterned doping and spatially resolved luminescence

被引：9

作者：

Feldman, SD ^{[1
]}

Collins, RT ^{[1
]}

Kaydanov, V ^{[1
]}

Ohno, TR ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1787596

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

CdS/CdTe solar cells were nonuniformly doped at the backsurface of the CdTe with Cu evaporated through a shadow mask. Spatially resolved electroluminescence measurements showed strong correlation of emission intensity with the Cu pattern for all photon energies. Photoluminescence (PL) measurements performed on the exact same region showed no correlation with the Cu pattern when integrated over all energies. However, lower energy PL (located in a broad defect-related band) was slightly more intense in Cu-doped regions, whereas the intensity of PL from shallower states was slightly greater in undoped regions. These small differences in spectra were discernable only with the patterned doping and spatially resolved characterization used here. (C) 2004 American Institute of Physics.

引用

页码：1529 / 1531

页数：3

共 12 条

[1]

Gessert TA, 2003, MATER RES SOC SYMP P, V763, P133

[2]

Gilmore AS, 2003, MATER RES SOC SYMP P, V763, P453

[3] Photoluminescence study of Cu diffusion and electromigration in CdTe [J].