SPICE modelling of photoluminescence and electroluminescence based current-voltage curves of solar cells for concentration applications

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Title: SPICE modelling of photoluminescence and electroluminescence based current-voltage curves of solar cells for concentration applications
Authors: Alonso Alvarez, D
Ekins-Daukes, N
Item Type: Journal Article
Abstract: Quantitative photoluminescence (PL) or electroluminescence (EL) experiments can be used to probe fast and in a non-destructive way the current-voltage (IV) characteristics of individual subcells in a multi-junction device, information that is, otherwise, not available. PL-based IV has the advantage that it is contactless and can be performed even in partly finished devices, allowing for an early diagnosis of the expected performance of the solar cells in the production environment. In this work we simulate the PL- and EL-based IV curves of single junction solar cells to assess their validity compared with the true IV curve and identify injection regimes where artefacts might appear due to the limited in-plane carrier transport in the solar cell layers. We model the whole photovoltaic device as a network of sub-circuits, each of them describing the solar cell behaviour using the two diode model. The sub-circuits are connected to the neighbouring ones with a resistor, representing the in-plane transport in the cell. The resulting circuit, involving several thousand subcircuits, is solved using SPICE.
Issue Date: 1-Aug-2016
Date of Acceptance: 24-Jun-2016
URI: http://hdl.handle.net/10044/1/34296
DOI: https://dx.doi.org/10.13052/jge1904-4720.5343
ISSN: 2245-4586
Publisher: River Publishers
Start Page: 33
End Page: 48
Journal / Book Title: Journal of Green Engineering
Volume: 5
Issue: 3&4
Copyright Statement: © 2016 River Publishers. All rights reserved.
Sponsor/Funder: EURAMET ERMP-MSU
Funder's Grant Number: ENG51-REG3
Publication Status: Published
Appears in Collections:Physics
Experimental Solid State
Faculty of Natural Sciences



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