Open AccessPROGRESS IN ELECTRICAL AND OPTICAL PROPERTIES OF VANADIUM IONS DOPED (PVA+ZnO) POLYMER FILMS
Author(s) -
Ch. Rani,
M. Hemalatha,
S. Hima Bindu,
Cijil Raju
Publication year - 2020
Publication title -
rasayan journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 22
eISSN - 0976-0083
pISSN - 0974-1496
DOI - 10.31788/rjc.2020.1325582
Subject(s) - vanadium , doping , materials science , ion , polymer , chemical engineering , inorganic chemistry , optoelectronics , composite material , metallurgy , chemistry , organic chemistry , engineering
The various concentrations of vanadium ions doped in (PVA+ZnO) polymer films prepared by the slow evaporation method and the electrical, optical, and structural properties of polymer films investigated by EPR, optical, and FTIR spectroscopy. The EPR spectrum exhibits lande gfactor g׀׀=1.96, g┴=2.04, and the hyperfine splitting constant values were A׀׀≥ A┴. The optical absorption spectrum shows three bands at 420nm, 692nm, and 832nm. The bandgap energy of polymer films decreased with increases in vanadium ions concentration. This change indicates that polymer films became more semiconducting. The (PVA+ZnO) polymer films show an evident change by the addition of vanadium ions and the structural peaks at 1003, 1079, 1142, 1271cm from the FTIR spectrum.
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