TY - JOUR
T1 - The effect of vacuum and air annealing on the structural, optical and photoluminescence properties of ZnS films
AU - Priya, K.
AU - Rao, Gowrish K.
AU - AV, Muhammed Ali
AU - Murari, M. S.
AU - Sanjeev, Ganesh
N1 - Funding Information:
The authors are thankful to DAE- BRNS , Govt. of India for funding the above research work (Sanction No.: 34(1)/14/37/2014 ). The authors are also thankful to Innovation center, Manipal Institute of Technology, Manipal and DST PURSE LAB, Mangalore University, Mangalagangotri for providing characterization facilities.
Funding Information:
The authors are thankful to DAE-BRNS, Govt. of India for funding the above research work (Sanction No.: 34(1)/14/37/2014). The authors are also thankful to Innovation center, Manipal Institute of Technology, Manipal and DST PURSE LAB, Mangalore University, Mangalagangotri for providing characterization facilities.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/10/15
Y1 - 2021/10/15
N2 - The deposition temperature and post-deposition heat treatment can be effectively used to fine tune the structure and composition of the films to obtain desired performance. In this paper, we have investigated the effect of elevated substrate temperature and post-deposition annealing (in air and vacuum) on the properties of ZnS films. Both the tools were found to produce considerable changes in the crystal structure of the films. The major impact was found to be an increase in crystallite size which effectively reduced the defects. Although a small amount of tensile stress was produced as a side-effect of heat treatment, the films remained structurally intact. The vacuum annealing was found to be far more productive than annealing in air. It produced nearly the same amount of improvement in the crystallite size, but with considerably less tensile stress. Furthermore, the bandgap of the films remained unaffected by vacuum annealing.
AB - The deposition temperature and post-deposition heat treatment can be effectively used to fine tune the structure and composition of the films to obtain desired performance. In this paper, we have investigated the effect of elevated substrate temperature and post-deposition annealing (in air and vacuum) on the properties of ZnS films. Both the tools were found to produce considerable changes in the crystal structure of the films. The major impact was found to be an increase in crystallite size which effectively reduced the defects. Although a small amount of tensile stress was produced as a side-effect of heat treatment, the films remained structurally intact. The vacuum annealing was found to be far more productive than annealing in air. It produced nearly the same amount of improvement in the crystallite size, but with considerably less tensile stress. Furthermore, the bandgap of the films remained unaffected by vacuum annealing.
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U2 - 10.1016/j.physb.2021.413219
DO - 10.1016/j.physb.2021.413219
M3 - Article
AN - SCOPUS:85109218852
SN - 0921-4526
VL - 619
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
M1 - 413219
ER -