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Author Ramamoorthy, K. ♦ Sanjeeviraja, C. ♦ Jayachandran, M. ♦ Sankaranarayanan, K. ♦ Bhattacharya, P. ♦ Kukreja, L. M.
Source CSIR-Central Electrochemical Research Institute
Content type Text
Publisher Elsevier
File Format PDF
Copyright Year ©2001
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Physical chemistry
Subject Keyword Electrochemical Materials Science
Abstract Highly c-axis oriented ZnOth in films were epitaxially grown on semi-insulating 700S oriented InP substrates (SIInP) held at room temperature (RT), 2001C and 3001C by laser molecular beam epitaxy (L-MBE) i.e., pulsed laser deposition. Through X-ray diffraction analysis, the material, the crystalline quality and the epitaxial lattice matching of the film were confirmed. The obtained high intense peak shows that the most preferential orientation was (0 0 2), i.e; along the ‘c-axis’. Results obtained from the optical studies indicated that the deposited film showed nearly 95% transparency and acts as anti-reflection medium. Photoluminescence (PL) study confirms the high electrical conductivity of the film and the obtained low-intensity PL spectrum indicates high O Zn ratio. Further, the elemental peaks for Zn, O, In and P were identified by EDAX and the spectrum shows the stoichiometry of the ZnOth in films. From the optical absorption spectrum, the optical band gap and the thickness were calculated. The sheet resistance of the deposited ZnO thin films was measured for various deposition temperatures. Structural, compositional, surface morphological, optical and photoluminescence characterization results are discussed.
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2001-01-01
Journal PeerReviewed