Title :
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
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;
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th
Conference_Location :
Denver, CO
DOI :
10.1109/PVSC.2014.6925317
