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Cu 2 ZnSnS 4 Thin Film Fabricated by the Calcinated Nanocrystals
Author(s) -
Chen Jin,
Sun Yu,
Ju Jiaqi,
Wang Fengchao,
Jin Yan,
Zhang Canyun,
Kong Jinfang,
Peng Xiaogai,
Wang Chenfei,
Dong Hengxing,
Chen Qinmiao,
Dou Xiaoming
Publication year - 2020
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.202000081
Subject(s) - czts , kesterite , materials science , raman spectroscopy , x ray photoelectron spectroscopy , chemical bath deposition , thin film , annealing (glass) , analytical chemistry (journal) , spectroscopy , scanning electron microscope , nanocrystal , band gap , nanoparticle , impurity , energy dispersive x ray spectroscopy , chemical engineering , nanotechnology , optoelectronics , optics , chemistry , metallurgy , physics , engineering , organic chemistry , chromatography , quantum mechanics , composite material
In the present work, Cu 2 ZnSnS 4 (CZTS) thin film is successfully prepared by the calcinated nanocrystals with screen‐printing approach. The dependences of the obtained samples’ properties on the annealing parameters of temperature and time are well studied via X‐ray diffraction, Raman, field emission scanning electron microscopy, ultraviolet‐visible‐infrared (UV‐vis‐IR) spectroscopy, energy‐dispersive X‐ray spectroscopy, and X‐ray photoelectron spectroscopy treatments. The results suggested that the best performances of prepared sample can be obtained at 600 °C for 20 min. The obtained sample features a kesterite CZTS phase, a surface morphology consisting of microns nanoparticles, a Cu‐rich and Zn‐rich chemical composition, and an ideal band gap of 1.4 eV. Additionally, the impurity phase of copper sulfide resulting from Cu‐rich composition is needed to further improve in the next work.