Ian A. Tappan
National Renewable Energy Laboratory
7 Papers
22 Citations
Ian A. Tappan is an academic researcher from National Renewable Energy Laboratory. The author has contributed to research in topics: UV degradation & Breakdown voltage. The author has an hindex of 3, co-authored 7 publications.
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Papers
Historical Analysis of Champion Photovoltaic Module Efficiencies
Sarah Kurtz,Ingrid Repins,Wyatt K. Metzger,Pierre J. Verlinden,Susan Huang,Stuart Bowden,Ian A. Tappan,Keith Emery,Lawrence L. Kazmerski,Dean H. Levi +9 more
TL;DR: This work analyzes champion module efficiencies and compares them to champion cell efficiencies to better understand technology trends over the last three decades, highlighting that, in some cases, module effic efficiencies exceed 90% of cell efficiency.
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Degradation of thermally-cured silicone encapsulant under terrestrial UV
TL;DR: In this article, fracture mechanics based metrologies were developed to characterize the adhesion of the silicone encapsulant and its adjacent surfaces, as well as the cohesion of the encapsulants.
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Comparison of breakdown-voltage of contemporary and veteran photovoltaic backsheets
David C. Miller,Joshua Morse,Ian A. Tappan,Joshua Eafanti,Byron McDanold,Trevor Lockman,Nick Bosco +6 more
TL;DR: In this paper, the authors compared the performance of 36 contemporary backsheets, extracted from a variety of veteran photovoltaic modules, using the breakdown test, before and after UV weathering, according to the recent A3 test condition.
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Framework for predicting the photodegradation of adhesion of silicone encapsulants
TL;DR: In this article, the authors developed a framework to predict and model the photodegradation of adhesion and cohesion of a silicone encapsulant for concentrator photovoltaic applications.
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Degradation of silicone encapsulants in CPV optics
Can Cai,David C. Miller,Ian A. Tappan,Reinhold H. Dauskardt +3 more
- 01 Jun 2016
TL;DR: In this paper, the effects of weatherings on adhesion using an outdoor concentrator operating in excess of 1100 times the AM1.5 direct irradiance and in environmental chambers with broadband ultraviolet (UV) irradiation combined with controlled temperature and humidity were studied.
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