Infrared characterization of hot spots in solar cells with high precision due to signal treatment processing

被引：19

作者：

Kaminski, A ^{[1
]}

Jouglar, J ^{[1
]}

Mergui, M ^{[1
]}

Jourlin, Y ^{[1
]}

Bouille, A ^{[1
]}

Vuillermoz, PL ^{[1
]}

Laugier, A ^{[1
]}

机构：

[1] Inst Natl Sci Appl, Phys Mat Lab, UMR, F-69621 Villeurbanne, France

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1998年 / 51卷 / 3-4期

关键词：

IR thermography; signal treatment; shunts;

D O I：

10.1016/S0927-0248(97)00224-9

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 paper we show how to improve greatly the resolution of IR thermography by using two different signal treatment methods: a static treatment and a dynamical treatment. This signal processing allows the study of 100 cm(2) cells under low-forward or reverse-polarization conditions. Static and dynamical methods have both good resolutions: static has the advantage of being fast, and dynamical method does not need any reference image nor cooling system. We have shown that IR thermography is an interesting method for investigating shunts in solar cells. Thermal maps and I-V characterization of the hot spots show that the origin and the behavior of the shunts are varied and their influence on the efficiency is probably more important than what is usually thought. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：233 / 242

页数：10