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Synthesis and characterization of sol gel derived nontoxic CZTS thin films without sulfurization
Author(s) -
Amrit Pratyay,
Jain Surbhi,
Tomar Monika,
Gupta Vinay,
Joshi Bhawana
Publication year - 2020
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13451
Subject(s) - czts , materials science , thin film , layer (electronics) , scanning electron microscope , zinc sulfide , chemical engineering , chemical bath deposition , energy dispersive x ray spectroscopy , tin , chemical vapor deposition , characterization (materials science) , zinc , analytical chemistry (journal) , optoelectronics , nanotechnology , composite material , metallurgy , chemistry , organic chemistry , engineering
Recently, great attention has been paid to the development of earth rich and nonhazardous Copper Zinc Tin Sulfide (CZTS–Cu 2 ZnSnS 4 ) thin films for application in photovoltaic devices owing to its high absorption coefficient over the visible and infrared region. However, sulfurization process is an indispensable step in growing stoichiometric thin film using conventional physical vapor deposition. Hence, it is imperative to devise a liquid based technique without intentional sulfurization for the optimum quality growth of CZTS thin films. In the current work, layer‐by‐layer sol‐gel deposition technique was utilized to grow high quality CZTS thin films without sulfurization and their structural and optical characteristics were investigated using XRD studies and UV‐visible spectroscopy respectively. The morphology and chemical composition of the prepared CZTS films are estimated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analysis respectively. Highly absorbing and crystalline CZTS films have been successfully grown in the present work which could be further utilized as an absorber layer in photovoltaic applications.