Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics 2018 (AP-HOPV18)
Publication date: 27th October 2017
Sn-doped SnO2 (FTO) films were grown on a glass substrate by spray pyrolysis at 500 degree C. The (200) orientation became more pronounced with increasing F-doping concentration. This indicated that F-doping caused the degree of crystallinity of the SnO2 films to increase. F-doping caused the resistivity to decrease and the carrier concentration to increase. This is due to the fluorine atoms acting as donor-type impurities, increasing the number of free electrons. Hall measurements indicated n-type conduction in all of the non-doped and F-doped SnO2 films. The lowest resistivity of 4:0 × 10-4 ohm cm could be obtained at a F concentration of 17 mol%. Its carrier concentration and mobility were 4:7 × 1020 cm-3 and 34 cm2 (V s)-1, respectively. Furthermore, the average optical transmittance, which was more than 80% in visible region, was nearly constant with increasing F-doping concentration. A perovskite-based solar cell such as Au/Spiro-OMeTAD/CH3NH3PbI3/ SnO2/FTO/glass was fabricated. The efficiency of the obtained device is 6.4% with the short-circuit current density (Jsc) of 19.2 mA/cm2, open circuit voltage (Voc) of 0.78 V, and fill factor (FF) of 0.43.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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