Please use this identifier to cite or link to this item:
|Title:||Method for quantifying optical parasitic absorptance loss of glass and encapsulant materials of silicon wafer based photovoltaic modules||Authors:||Khoo, Y.S.
|Issue Date:||Jul-2012||Citation:||Khoo, Y.S., Walsh, T.M., Lu, F., Aberle, A.G. (2012-07). Method for quantifying optical parasitic absorptance loss of glass and encapsulant materials of silicon wafer based photovoltaic modules. Solar Energy Materials and Solar Cells 102 : 153-158. ScholarBank@NUS Repository. https://doi.org/10.1016/j.solmat.2012.03.008||Abstract:||Optical losses in a photovoltaic (PV) module consist of reflectance losses and parasitic absorptance losses in the front layers of the module. A method for quantifying the optical losses associated with the cover glass and encapsulant material of silicon wafer based PV modules is presented. The method involves measuring the spectral reflectance (R) and the external quantum efficiency (EQE) of a silicon wafer solar cell before and after encapsulation. The approach used is to first obtain the internal quantum efficiency (IQE) of the cell using R and EQE of the cell before encapsulation. Assuming that the IQE of the cell is not changed by the encapsulation process, the spectrally resolved parasitic absorptance loss (A para.mod) associated with the cover glass and the encapsulant material is calculated with the aid of EQE and R measurements of the encapsulated cell. Using this method, the optical losses (at near normal incidence) of single-cell multicrystalline silicon wafer PV modules with two different ethylene vinyl acetate (EVA) encapsulants (conventional and super-clear EVA) are investigated and compared. Compared to conventional EVA, the module encapsulated with super-clear EVA is found to have much lower A para.mod at short wavelengths. © 2012 Elsevier B.V. All rights reserved.||Source Title:||Solar Energy Materials and Solar Cells||URI:||http://scholarbank.nus.edu.sg/handle/10635/82689||ISSN:||09270248||DOI:||10.1016/j.solmat.2012.03.008|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 28, 2020
WEB OF SCIENCETM
checked on May 20, 2020
checked on May 31, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.