Abstract: . . .  number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY) November 2005 2. REPORT TYPE Conference Paper 3. DATES COVERED (From - To) 5a. CONTRACT NUMBER DE-AC36-99-GO10337 5b. GRANT NUMBER 4. TITLE AND SUBTITLE Rheological and Mechanical Considerations for Photovoltaic Encapsulants 5c. PROGRAM ELEMENT NUMBER 5d. PROJECT NUMBER NREL/CP-520-38972 5e. TASK NUMBER PVB6.7201 6. AUTHOR(S) M.D. Kempe 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) . . .
. . .  encapsulants; PV; NREL 16. SECURITY CLASSIFICATION OF: 19a. NAME OF RESPONSIBLE PERSON a. REPORT Unclassified b. ABSTRACT Unclassified c. THIS PAGE Unclassified 17. LIMITATION OF ABSTRACT UL 18. NUMBER OF PAGES 19b. TELEPONE NUMBER (Include area code) Standard Form 298 (Rev. 8/98) Prescribed by ANSI Std. Z39.18  . . .
. . .  exposure, its low cost and good optical transmission made EVA the most commonly used material for PV modules. These transitions, however, cause EVA to embrittle at low temperatures ( -15 o C) and to be very soft at high temperatures (>40 o 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 . . .
. . .  low cost and good optical transmission made EVA the most commonly used material for PV modules. These transitions, however, cause EVA to embrittle at low temperatures ( -15 o C) and to be very soft at high temperatures (>40 o 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 made . . .
. . .  PV; NREL 16. SECURITY CLASSIFICATION OF: 19a. NAME OF RESPONSIBLE PERSON a. REPORT Unclassified b. ABSTRACT Unclassified c. THIS PAGE Unclassified 17. LIMITATION OF ABSTRACT UL 18. NUMBER OF PAGES 19b. TELEPONE NUMBER (Include area code) Standard Form 298 (Rev. 8/98) Prescribed by ANSI Std. Z39.18  . . .
. . .  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 made thinner. 15. SUBJECT TERMS Photovoltaics; solar; photovoltaic encapsulants; PV; NREL 16. SECURITY CLASSIFICATION OF: 19a. NAME OF RESPONSIBLE PERSON a. REPORT Unclassified b. ABSTRACT Unclassified c. THIS PAGE Unclassified 17. LIMITATION OF ABSTRACT UL 18. NUMBER OF PAGES 19b. TELEPONE NUMBER (Include . . .
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