Print Email Facebook Twitter Determination of the temperature dependency of the electrical parameters of CIGS solar cells Title Determination of the temperature dependency of the electrical parameters of CIGS solar cells Author Theelen, M. Liakopoulou, A. Hans, V. Daume, F. Steijvers, H. Barreau, N. Vroon, Z. Zeman, M. Publication year 2017 Abstract Two types of Cu(In,Ga)Se2 (CIGS) solar cells, both designed for implementation in CIGS modules, were subjected to temperatures between 25C and 105C. Simultaneous exposure to AM1.5 illumination allowed the measurement of their electrical parameters at these temperatures. These two types of solar cells, produced with different deposition routes on soda lime glass (SLG) and polyimide (PI) substrates, showed large variations in the temperature dependency of their electrical parameters. It was shown that the temperature dependency of the open circuit voltage (Voc) was dependent on its room temperature value: a high Voc at 25 °C led to a slower loss of Voc when the temperature was increased. For the Voc, the normalised temperature dependency varied between -0.28%/°C and -0.47%/°C, which is in agreement with the literature. The temperature dependency of the short circuit current density (Jsc) showed more surprising results: while the PI samples had the expected positive temperature dependency (0.03 to 0.32%/°C), the SLG samples showed a small negative impact of increasing temperature (-0.01 to -0.05%/°C). A correlation between the temperature dependencies of the Jsc and the ideality factor n was observed. Therefore, this difference in the temperature dependence of the Jsc could be caused by increased recombination for the SLG samples. Furthermore, the temperature coefficients of the fill factor (negative), efficiency (negative), and the series (slightly negative) and shunt (negative) resistances were calculated. Subject Nano TechnologyTFT - Thin Film TechnologyTS - Technical SciencesChemistryIndustrial InnovationElectric fault currentsIon sensitive field effect transistorsOpen circuit voltageSolar cellsTemperature distributionCIGS solar cellsElectrical parameterIdeality factorsIncreasing temperaturesTemperature coefficientTemperature dependenceTemperature dependenciesTemperature valuesElectric network parameters To reference this document use: http://resolver.tudelft.nl/uuid:f17ed453-e5f5-48b3-8eef-a10f0684da44 DOI https://doi.org/10.1063/1.4979963 TNO identifier 762757 Publisher American Institute of Physics Inc. ISSN 1941-7012 Source Journal of Renewable and Sustainable Energy, 9 (2) Article number 021205 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.