New perspective materials for solar cells: Cu2CrSnS4 solid solutions with orthorhombic structure
Gapanovich M. V.1,2, Odin I. N.2, Levin I. M.2, Rakitin V. V.1, Sedlovets D. M.3, Shilov G. V.1, Korchagin D. V.1
1Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia
2Lomonosov Moscow State University, Moscow, Russia
3Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Chernogolovka, Russia
Email: gmw1@mail.ru

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The Cu2CrSnS4 microcrystalline powders and films with orthorhombic structure were obtained by solid-phase synthesis, and their Raman spectra were recorded for the first time. By optical spectroscopy, it was found that their Eg=1.70 eV, while in energy band gap of the powders there is a donor level with E=1.23 eV. It is shown for the first time that films of this material are photosensitive and have p-type of dark conductivity. Keywords: solid-phase synthesis, microcrystalline powder, film, dark conductivity.
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