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Title:
 
Determining the Temperature of Bare Solar Cells and Local Hot Spots during IV Measurements
 
Author(s):
 
T. Roth, D. Wichmann, K. Meyer
 
Keywords:
 
Calibration, Solar Cell, Hot Spot, Temperature, Characterisation, Characterization
 
Topic:
 
WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Subtopic: Silicon Solar Cell Characterisation and Modelling
Event: 28th European Photovoltaic Solar Energy Conference and Exhibition
Session: 2CV.3.34
 
Pages:
 
1583 - 1585
ISBN: 3-936338-33-7
Paper DOI: 10.4229/28thEUPVSEC2013-2CV.3.34
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


For a reliable measurement of the electrical solar cell parameters, the exact cell temperature has to be known. This holds especially for measurements under standard test conditions, but also for temperature-dependent measurements for the extraction of temperature coefficients of the electrical cell parameters. Different strategies for measuring the solar cell temperature as well as different temperature-sensor positions and settings will be analyzed in detail. In order to increase solar module reliability, solar cells with local hotspots have to be rejected during classification of solar cells. For finding local hotspots during fast IV measurements, infrared camera setups are widely used, necessitating a correlation between long-term and short-term infrared hot spot detection. In the second part of this contribution, this correlation will be experimentally examined thoroughly.