Effect of Cooling Press on the Optical Transmission through Photovoltaic Encapsulants

In certain laminators for poly (ethylene-co-vinyl acetate) (EVA) encapsulation process of photovoltaic modules, cooling press (CP) is applied to the module after encapsulation. Here, the effect of CP on the optical transmission through common PV encapsulants is studied. Interestingly, CP is shown to reduce drastically the scattering of the light between 400 and 700nm traveling through the thermoplastic polyolefin (TPO)-based encapsulant. Post-annealing tests prove this effect to be stable at the temperature up to 85 degrees C. This work has discovered a simple solution to mitigate the milky appearance of the TPO encapsulant and hence greatly enhanced its competitiveness against EVA.


Published in:
LPTE: Polymer-Plastics Technology and Engineering, 54, 15, 416-424
Year:
2015
Publisher:
Philadelphia, Taylor & Francis Inc
Keywords:
Note:
IMT-NE Number : 794
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2015-01-23, last modified 2018-09-13

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