Abstract:
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.
