Journal
JOURNAL OF CRYSTAL GROWTH
Volume 626, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jcrysgro.2023.127481
Keywords
Single crystal growth; Crystal structure; Band gap; Gas chemical method; Semiconducting quaternary alloys
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This work presents the production of single crystals of Cu2ZnGeSe4, a semiconducting quaternary compound, using a gas chemical method with iodine as a transporter. The phase state, crystal structure, and lattice constants of the synthesized samples were refined and determined. The band gap of Cu2ZnGeSe4 was calculated using transmission spectrum and it was found that the band gap increases by 12% with decreasing temperature in the range of 20-300 K.
This work describes the production of single crystals of the semiconducting quaternary compound Cu2ZnGeSe4 using a gas chemical method in which iodine was used as a transporter. For all the synthesized samples, their phase state, crystal structure syngony and lattice constants were refined. The unit cell of the studied compound is characterized by tetragonal symmetry. The transmission spectrum was applied to calculate the band gap, which is depicted as temperature function in 20-300 K range. It was fixed that the band gap increases by 12% with decreasing temperature.
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