Open AccessHydrothermal Synthesis of Cu2ZnSnS4 Nanostructure and Their Application as H2S Gas Sensor
Author(s) -
Zainab S. Ali
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1530/1/012132
Subject(s) - czts , tetragonal crystal system , kesterite , materials science , spin coating , nanostructure , band gap , hydrothermal circulation , analytical chemistry (journal) , thin film , crystallography , nanotechnology , chemical engineering , crystal structure , optoelectronics , chemistry , chromatography , engineering
In this study, Cu 2 ZnSnS 4 (CZTS) nanostructure are successfully synthesized by using hydrothermal method. Structural, morphology, optical properties have been studied for thin films (CZTS) deposited via spin-coating method. X-ray diffraction show that the films have pure tetragonal-kesterite structure preferred orientation along (112) . The FE- SEM shows that (CZTS) have a nano-sphere like structure, consist with diameters less than 35 nm. UV-Vis spectroscopy measurement showed that absorption coefficient (α <10 4 cm −1 ) and the band gap energy is equal to 1.42 eV. The Sensitivity properties of (CZTS) samples for H 2 S gas was tested at various operating temperature and found that the highest sensitivity is (83.63 %) at T=150 ºC.