Single-phase CZTSe via isothermal recrystallization in a KI-KCl flux
Bakhadur A.M. Uralbekov B.M. Atuchin V.V. Mukherjee S. Kokh K.A.
2 March 2022Royal Society of Chemistry
CrystEngComm
2022#24Issue 122291 - 2296 pp.
A facile, two-step procedure was developed to prepare a pure CZTSe (Cu2ZnSnSe4) phase from elemental Cu, Zn, Sn, and Se with the addition of a KI-KCl mixture. During the first step, the mixture charge was reacted at 1000 °C to convert all the metals to selenides. Next, the extracted charge was powdered and again heated to 750 °C to obtain homogeneous grains of CZTSe with a size of 30-100 microns. The main intermediate phase during the synthesis of Cu2SnSe3 was found to dissolve Zn up to 11.5 at% and, without Raman spectroscopy data, this phase could be easily confused with CZTSe because they are not optically distinguishable. On the other hand, the deviation of the Zn content in CZTSe does not exceed ±0.5 at%.
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Center of Physical-Chemical Methods of Research and Analysis, Al Farabi Kazakh National University, Almaty, 050040, Kazakhstan
LLP EcoRadSM, Al-Farabi Avenue 71, Almaty, 050040, Kazakhstan
Laboratory of Optical Materials and Structures, Rzhanov Institute of Semiconductor Physics, SB RAS, Novosibirsk, 630090, Russian Federation
Department of Industrial Machinery Design, Novosibirsk State Technical University, Novosibirsk, 630073, Russian Federation
Novosibirsk State University, Novosibirsk, 630090, Russian Federation
Kemerovo State University, Kemerovo, 650000, Russian Federation
Electrical Engineering and Centre for Advanced Electronics (CAE), Indian Institute of Technology Indore, Madhya Pradesh, 453552, India
School of Engineering, RMIT University, Melbourne, 3001, VIC, Australia
Laboratory of Crystal Growth, Sobolev Institute of Geology and Mineralogy, SB RAS, Novosibirsk, 630090, Russian Federation
Center of Physical-Chemical Methods of Research and Analysis
LLP EcoRadSM
Laboratory of Optical Materials and Structures
Department of Industrial Machinery Design
Novosibirsk State University
Kemerovo State University
Electrical Engineering and Centre for Advanced Electronics (CAE)
School of Engineering
Laboratory of Crystal Growth
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