Water cooking for backsheet and PV module endurance evaluation

Author

MaoYi Chang ; Haomin Chen ; ChienYu Chen ; Hsueh, C.H. ; Hsieh, W.J.

Author_Institution

AU Optronics Corp., Taichung, Taiwan

fYear

2014

fDate

8-13 June 2014

Firstpage

1997

Lastpage

2000

Abstract

Water cooking is applied as an efficient screening tool to evaluate various structures of PV module backsheet from three suppliers against thermal and humidity stressing. Visual appearance, adhesion, yellowing effect, water vapor transmission rate (WVTR) and FT-IR spectral are inspected. De-lamination among layers and PET hydrolysis take place after 600 to 800 hours. Comparing with extended damp heat reliability in P-mono modules with those backsheets, it has well correlation between water cooking to damp heat result. The acceleration factor is around six to eight times faster than damp heat test.

Keywords

Fourier transform spectroscopy; delamination; infrared spectroscopy; reliability; solar cell arrays; thermal stresses; FT-IR spectral; P-mono modules; PET hydrolysis; PV module backsheet; PV module endurance evaluation; WVTR; acceleration factor; adhesion; damp heat test; delamination; extended damp heat reliability; humidity stressing; screening tool; thermal stressing; time 600 hour to 800 hour; visual appearance; water cooking; water vapor transmission rate; yellowing effect; Acceleration; Degradation; Resists; Temperature; Visualization; Water; Water heating; PV module; accelerated testing; backsheet; damp heat; reliability; water cooking;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/PVSC.2014.6925317

Filename

6925317