TY - CONF T1 - OPAL 2: Rapid optical simulation of silicon solar cells T2 - 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC)2012 38th IEEE Photovoltaic Specialists Conference Y1 - 2012 A1 - McIntosh, Keith R. A1 - Baker-Finch, Simeon C. AB - The freeware program OPAL 2 computes the optical losses associated with the front surface of a Si solar cell. It calculates the losses for any angle of incidence within seconds, where the short computation time is achieved by decoupling the ray tracing from the Fresnel equations. Amongst other morphologies, OPAL 2 can be used to assess the random-pyramid texture of c-Si solar cells, or the `isotexture' of mc-Si solar cells, and to determine (i) the optimal thickness of an antireflection coating with or without encapsulation, (ii) the impact of imperfect texturing, such as non-ideal texture angles, over-etched isotexture, and flat regions, and (iii) the subsequent 1D generation profile in the Si. This paper describes the approach and assumptions employed by OPAL 2 and presents examples that demonstrate the dependence of optical losses on texture quality and incident angle. JA - 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC)2012 38th IEEE Photovoltaic Specialists Conference PB - IEEE CY - Austin, TX, USA SN - 978-1-4673-0064-3 KW - 532 ER - TY - Generic T1 - Outdoor measurement of 28% efficiency for a mini-concentrator module T2 - National Center for Photovoltaics Program Review Meeting Y1 - 2000 A1 - O’Neil, M.J. A1 - McDanal, A.J. JA - National Center for Photovoltaics Program Review Meeting CY - Denver, USA N1 -
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