Wavelength conversion film with glass coated Eu chelate for enhanced silicon-photovoltaic cell performance

被引：41

作者：

Fukuda, Takeshi ^{[1
]}

Kato, Sayaka ^{[1
]}

Kin, Eimo ^{[1
]}

Okaniwa, Kaoru ^{[2
]}

Morikawa, Hiroaki ^{[3
]}

Honda, Zentaro ^{[1
]}

Kamata, Norihiko ^{[1
]}

机构：

[1] Saitama Univ, Dept Funct Mat Sci, Sakura Ku, Saitama 3388570, Japan

[2] Hitachi Chem Co Ltd, Adv Mat R&D Ctr, Tsukuba, Ibaraki 3004247, Japan

[3] Mitsubishi Electr Corp, Photovolta Power Syst Dept, Itami, Hyogo 6648641, Japan

来源：

OPTICAL MATERIALS | 2009年 / 32卷 / 01期

关键词：

Silicon-photovoltaic cell; Wavelength conversion film; Eu chelate; Sol-gel process; Photoluminescence; UP-CONVERSION; SOLAR-CELLS; LUMINESCENCE; EFFICIENCY; SPECTRUM; COMPLEX; IONS;

D O I：

10.1016/j.optmat.2009.05.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to improve the conversion efficiency of a silicon-photovoltaic (PV) module, we investigated the combination with a wavelength conversion film (WCF), which consists of Eu chelate particles encapsulated by the sol-gel derived silica glass. The photoluminescence (PL) excitation spectrum of Eu chelate shows that the violet light below 400 nm is effectively converted to the red emission at 613 nm. Since the PV cell has higher sensitivity at the red wavelength region compared to the violet region, Eu chelate is one of the suitable material for a WCF. The diameter of fabricated sol-gel encapsulated Eu chelate was larger than the wavelength of irradiated sunlight, therefore, the transmittance of a WCF decreased with increasing the concentration of Eu chelate. The short circuit current (J(SC)) was increased by inserting the the WCF on the front side of Si-PV cell compared to the reference module (glass/ethylene vinyl acetate/WCF without Eu chelate/Si-PV cell/EVA/back-film), and the maximum increase of Delta J(SC) was 1.03 mA/cm(2) compared to the reference module. However, the maximum Delta J(SC) of fabricated module was almost same as the conventional Si-PV cell due to the refractive index mismatch of each layers. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：22 / 25

页数：4

共 20 条

[1] Electroluminescence mechanisms in organic light emitting devices employing a europium chelate doped in a wide energy gap bipolar conducting host [J].