Nondestructive estimation of strength deterioration in photovoltaic backsheets using a portable near infrared spectrometer

被引：25

作者：

Li, Hua ^{[1
]}

Kikuchi, Ryoei ^{[1
]}

Kumagai, Masanori ^{[2
]}

Amano, Toshio ^{[3
]}

Tang, Haoning ^{[4
]}

Lin, Jin-Ming ^{[5
]}

Fujiwara, Kazuhiko ^{[1
]}

Ogawa, Nobuaki ^{[1
]}

机构：

[1] Akita Univ, Grad Sch Engn & Resource Sci, Akita 0108502, Japan

[2] Akita Res Inst Food & Brewing, Akita 0101623, Japan

[3] OPT Res Inc, Suginami Ku, Tokyo 1670031, Japan

[4] Beiging Bayi High Sch, Beijing, Peoples R China

[5] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 101卷

关键词：

Near infrared spectrometry; Solar cell; Photovoltaic; Backsheet; SPECTROSCOPY; CELLS; EFFICIENCY;

D O I：

10.1016/j.solmat.2012.01.017

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：

Photovoltaic (PV) backsheets composed of polyvinylidene difluoride (PVDF) and polyethylene terephthalate (PET) films were evaluated via principal component analysis (PCA) of near infrared (NIR) spectral datasets obtained using a potable NIR spectrometer. The discrimination of material and the degree of deterioration of the backsheets following heating and humidifying or irradiating with UV light was examined. Multiple linear regression (MLR) analysis was also employed to evaluate the degree of deterioration. The reference values (peel and tensile strength) were obtained via the International Electrotechnical Commission (IEC) 61215 and Underwriters Laboratories (UL) 1703 standard methods. The values of the peel strength and tensile strength after heating/humidifying treatment correlate quite strongly with the NIR predicted values (R-2=0.946 and R-2=0.973, respectively). These results show that the degree of deterioration of a PV backsheet can be nondestructively and easily determined via NIR spectroscopy. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：166 / 169

页数：4

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