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Transport properties of PbSnI4
Affiliation:1. Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India;2. Department of Chemistry, Christ (Deemed to be University), Bangalore Dharmaram Campus, Bengaluru 560029, Karnataka, India;3. Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India;1. Department of Microelectronic Science and Engineering, Ningbo University, Ningbo 315000, China;2. The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China;1. Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, PR China;2. Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, PR China;3. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China;4. Renewable Energy Conversion and Storage Center of Nankai University, Tianjin, 300072, China;1. Office of Society-Academia Collaboration for Innovation, Kyoto University, Uji, Kyoto 611-0011, Japan;2. Research Reactor Institute, Kyoto University, 2–1010 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan;3. Institute of Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan;4. Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
Abstract:PbSnI4 has been prepared from equimolar amounts of PbI2 and SnI2. X-ray and DSC measurements show the material to be uniphase in the temperature range 30 to 400°C; it has a tetragonal structure and melts at 379°C. The electrical conductivity is mainly ionic with an ionic transport number greater than 0.99 at 200°C. Conductivity at room temperature is 2.56 × 10−8 Ω−1 cm−1 while the value at 200°C is 1.25 × 10−6 Ω−1 cm−1.
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