Abstract
Photovoltaic (pv) devices are encapsulated in polymeric materials not only for corrosion protection, but also for mechanical support. Even though ethylene-vinyl acetate (EVA) suffers from having both glass and melting phase transitions at temperatures experienced under environmental exposure, its low cost and good optical transmission made EVA the most commonly used material for PV modules. Thesetransitions, however, cause EVA to embrittle at low temperatures (~-15 deg C) and to be very soft at high temperatures (>40 deg C). From mechanical considerations, one would prefer a material that was relatively unchanged under a wide temperature range. This would produce a more predictable and reliable package. These concerns are likely to become more important as silicon based cells are madethinner.
Original language | American English |
---|---|
Number of pages | 5 |
State | Published - 2005 |
Event | 2005 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado Duration: 7 Nov 2005 → 10 Nov 2005 |
Conference
Conference | 2005 DOE Solar Energy Technologies Program Review Meeting |
---|---|
City | Denver, Colorado |
Period | 7/11/05 → 10/11/05 |
Bibliographical note
Presented at the 2005 DOE Solar Energy Technologies Program Review Meeting held November 7-10, 2005 in Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102006-2245; NREL/CD-520-38557)NREL Publication Number
- NREL/CP-520-38972
Keywords
- NREL
- photovoltaic encapsulants
- photovoltaics (PV)
- PV
- solar