Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes

被引：53

作者：

Danos, L. ^{[1
]}

Parel, T. ^{[1
]}

Markvart, T. ^{[1
]}

Barrioz, V. ^{[2
]}

Brooks, W. S. M. ^{[2
]}

Irvine, S. J. C. ^{[2
]}

机构：

[1] Univ Southampton, Solar Energy Lab, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

[2] Glyndwr Univ OpT Technium, CSER, St Asaph LL17 0JD, Clwyd, Wales

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 98卷

基金：

英国工程与自然科学研究理事会;

关键词：

Luminescence down-shifting; Excitation energy transfer; Cdte solar cells; PHOTON COLLECTION; WAVELENGTH; INCIDENT;

D O I：

10.1016/j.solmat.2011.11.009

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：

The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP-MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top. Excitation energy transfer between the dyes is used to extend the absorption ability of the LDS layer to lambda=350 nm and increase the external quantum efficiency (EQE) of the cells for wavelengths lambda < 540 nm. The observed increase in the EQE corresponds to a rise in the short circuit current density of 1.88 mA/cm(2) under AM1.5G illumination spectra, which is equivalent to a 10% relative solar cell efficiency increase. A simple model is presented, which accounts for the absorption and photon collection efficiencies of the LDS layer. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：486 / 490

页数：5

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