Application of sputtered TiO2 thin films as HRT buffer layer for high efficiency CdS/CdTe solar cells

被引：14

作者：

Hernandez-Rodriguez, E. ^{[1
]}

Rejon, V. ^{[2
]}

Mis-Fernandez, R. ^{[2
]}

Pena, J. L. ^{[2
]}

机构：

[1] Univ Guanajuato, DICIS, Dept Engn, Carretera Salamanca Valle Santiago Km 3-5 1-8, Salamanca 36885, Gto, Mexico

[2] IPN, CINVESTAV, Dept Appl Phys, Merida 97310, Yucatan, Mexico

来源：

SOLAR ENERGY | 2016年 / 132卷

关键词：

TiO2; Thin films; Solar cell; HRT; Buffer layer; PERFORMANCE; STABILITY;

D O I：

10.1016/j.solener.2016.02.047

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：

In this work titanium dioxide (TiO2) thin films were developed for application as high resistance transparent (HRT) buffer layer (BL) in high efficiency CdS/CdTe solar cells. The TiO2 HRT-BLs where deposited by the reactive RF-Sputtering technique. The solar cells had the superstrate configuration and the CdTe absorber was deposited by conventional Close Space Sublimation (CSS). Solar cells with optimized TiO2 HRT-BL had improved photoresponse in the blue wavelength region. A 15 nm TiO2 film avoids migration of chemical species from the ITO front contact toward the CdS/CdTe photovoltaic heterojunction. Solar cells with the TiO2 HRT-BL have improved temperature coefficient of efficiency. A photoconversion efficiency of 12.0% was obtained by employing a 15 nm TiO2 HRT-BL. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：64 / 72

页数：9

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