The Temperature Effect on the Working Characteristics of Solar Cells Based on Organometal Halide Perovskite Crystals

[摘要] Organometal halide perovskites have been much studied as an active material in a new generation of solar cell with high power conversion efficiency. The chemical reactions involved in their crystallization process are simple but the crystallization process and the formed crystal are very sensitive to temperature and humidity. In general, if the electronic structure of this active material is easily affected by temperature, the working performance of its solar cell will be also easily affected by temperature. In this work, we investigated the temperature effect on the working performance, namely the J-V characteristics, of CH3NH3PbI3perovskite based solar cell. The measurement result show that the J-V characteristic significantly changed with temperature. The J-V curve shows a diode characteristic at room temperature but it changes to an Ohmic characteristic at high temperature. This characteristics change may be due to the degradation of the perovskite crystals, which may be caused by separation and recrystallization PbI2inside the perovskite layer.

[发布机构] Physics of Photonics and Magnetism Research Division, Physics Program Study, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung; 40132, Indonesia^1;Electronics and Telecommunication Research Centre LIPI, Jl. Sangkuriang Komp.LIPI Gd.20, Bandung, Indonesia^2

[效力级别] 物理学

[关键词] Crystallization process;Diode characteristics;Halide perovskites;High power conversion;J-V characteristics;Ohmic characteristics;Temperature and humidities;Working performance