Open AccessA Facile Synthesis for Studying the Effect of Molar Concentration on Structural, Morphological and Optical Behaviour of MoO3 Thin Films using Jet Nebulizer Spray Pyrolysis Technique for n-MoO3/p-Si Photodiode Application
Author(s) -
G. Lavanya,
N. Sivanandan
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23418
Subject(s) - chemistry , raman spectroscopy , fourier transform infrared spectroscopy , analytical chemistry (journal) , calcination , orthorhombic crystal system , molybdenum trioxide , thin film , jet (fluid) , molybdenum , nuclear chemistry , chemical engineering , materials science , catalysis , nanotechnology , crystal structure , inorganic chemistry , chromatography , crystallography , organic chemistry , optics , physics , thermodynamics , engineering
In this study, molybdenum trioxide (MoO3) thin films were coated with various Mo concentrations 1,2, 3 and 4 wt.% referred as L1, L2, L3 and L4 respectively on to the silica substrate calcined at 450 ºCby a facile, rapid cost-effective and a custom-made jet nebulizer spray pyrolysis (JNSP) technique.The concentration impact on the structural, morphological and compositional parameters were examinedby XRD, FESEM, EDX, FTIR and Raman studies. The XRD peaks confirmed the presence of theorthorhombic phase of MoO3 (α-MoO3) in the prepared films. FESEM images depicted their nanorodstructured morphology. EDX spectra confirm the presence of elements such as oxygen (O) andmolybdenum (Mo). Molecular fingerprint of the samples were diagnosed by probing their molecularvibrations through the Raman Spectroscopy. Vibrational frequencies of the bonds in the samples wasinvestigated by FTIR. The I-V measurements were analyzed in light and dark conditions for then-MoO3/p-Si junction diode.