F
F. Bellarmine
Researcher at Indian Institute of Technology Madras
Publications - 10
Citations - 113
F. Bellarmine is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Pulsed laser deposition & Thin film. The author has an hindex of 6, co-authored 10 publications receiving 80 citations.
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Journal ArticleDOI
EXAFS and XANES investigation of (Li, Ni) codoped ZnO thin films grown by pulsed laser deposition
Lorenzo Mino,Diego Gianolio,Fabrizio Bardelli,Carmelo Prestipino,E. Senthil Kumar,F. Bellarmine,M. Ramanjaneyulu,Carlo Lamberti,M. S. Ramachandra Rao +8 more
TL;DR: Preliminary investigations on the Zn K-edge of the undoped and doped ZnO thin films revealed that doping has not influenced the average Zn-Zn bond length and Debye-Waller factor, which shows that both Ni and Li doping do not appreciably affect the average local environment of Zn.
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Investigation on the sulfurization temperature dependent phase and defect formation of sequentially evaporated Cu-rich CZTS thin films
TL;DR: In this paper, a detailed analysis of temperature dependent phase and defect formation in Cu-rich off-stoichiometric CZTS thin films was presented, where as-deposited films were subjected to various sulfurization temperatures ranging from 520 to 640°C.
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Growth of sillenite Bi12FeO20 single crystals: structural, thermal, optical, photocatalytic features and first principle calculations.
Durga Sankar Vavilapalli,Ambrose A. Melvin,F. Bellarmine,Ramanjaneyulu Mannam,Srihari Velaga,Himanshu K. Poswal,Ambesh Dixit,M. S. Ramachandra Rao,Shubra Singh +8 more
TL;DR: Interesting morphology and microstructure of pointed spearhead like BFO crystals provide a new insight in designing and synthesizing multifunctional single crystals.
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Enhanced photoluminescence and heterojunction characteristics of pulsed laser deposited ZnO nanostructures
Ramanjaneyulu Mannam,Ramanjaneyulu Mannam,E. Senthil Kumar,D.M. Priyadarshini,F. Bellarmine,Nandita DasGupta,M. S. Ramachandra Rao +6 more
TL;DR: In this article, the growth of ZnO nanostructures in different gas ambient (Ar and N 2 ) using pulsed laser deposition technique was reported, and the nanorods are c-axis oriented and highly epitaxial in nature.
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Tunable optical properties of multiphase ZnO–V2O5 polycrystalline powders
E. Senthil Kumar,E. Senthil Kumar,F. Bellarmine,M. Ramanjaneyulu,Divya Deepthi,M. S. Ramachandra Rao +5 more
TL;DR: In this paper, the authors synthesize bright yellow and white-yellow light emitting ZnO-V2O5 polycrystalline powders by engineering zinc oxide and different zinc vanadate phases.