Vapor growth and optimization of supersaturation for tailoring the physical properties of stoichiometric Sb2Se3 crystalline habits
- Title
- Vapor growth and optimization of supersaturation for tailoring the physical properties of stoichiometric Sb2Se3 crystalline habits
- Creator
- Bibin J.; Kunjomana A.G.; Teena M.
- Description
- The evolution of different morphologies (fibers, whiskers, needles, and spherulites) of antimony selenide (Sb2Se3), devoid of foreign chemical elements, was explored by the physical vapor deposition (PVD) method, employing an indigenously assembled tubular furnace, which showed layer growth mode as per the metallurgical and scanning electron micrographs. Supersaturation for crystallization was optimized by precisely controlling the difference in temperatures of nutrient and growth zones, ?T = TN ? TG, where ?T = 125 to 350C. The strain and dislocation density of the crystals were evaluated from the crystallographic data. Monophase nature has been confirmed by Rietveld refinement analysis of the PXRD findings, using Full Proof software. UVVis-NIR and PL spectra of the morphologies revealed band gap, Eg in the range, 1.151.18eV. Among these habits, good-quality whiskers bearing flat faces of appreciable crystallinity, stoichiometry, thermal stability and mechanical strength were produced due to the periodic deposition of atoms associated with the progression of smooth vaporsolid (v?) interface as evident from PXRD, EDAX, XPS, TGA and microindentation analyses. Hall effect measurements resulted in obtaining appreciable values of electrical parameters, ? = 145.36 ? cm and n = 7.39 1018cm?3 for PV applications. Moreover, optical studies justified direct transition with adequate photon absorption which promises the suitability of whiskers as absorbers in the energy conversion process. 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
- Source
- Journal of Materials Science: Materials in Electronics, Vol-33, No. 19, pp. 15814-15833.
- Date
- 2022-01-01
- Publisher
- Springer
- Coverage
- Bibin J., Department of Physics and Electronics, CHRIST (Deemed to Be University), Karnataka, Bangalore, 560029, India; Kunjomana A.G., Department of Physics and Electronics, CHRIST (Deemed to Be University), Karnataka, Bangalore, 560029, India; Teena M., Department of Physics, St. Thomas College, Kerala, Palai, 686574, India
- Rights
- Restricted Access
- Relation
- ISSN: 9574522
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Bibin J.; Kunjomana A.G.; Teena M., “Vapor growth and optimization of supersaturation for tailoring the physical properties of stoichiometric Sb2Se3 crystalline habits,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/15031.