Planetary Ball Milling and Tailoring of the Optoelectronic Properties of Monophase SnSe Nanoparticles
- Title
- Planetary Ball Milling and Tailoring of the Optoelectronic Properties of Monophase SnSe Nanoparticles
- Creator
- Kunjomana A.G.; Bibin J.; Athira R.C.; Teena M.
- Description
- Downscaling of tin monoselenide (SnSe) samples to the nanometer regime (~8020nm) without affecting the structure, homogeneity, and optoelectronic properties was carried out by high-energy planetary ball milling (BM). The milling rate was varied from 200rpm to 800rpm by adopting a dry and wet-grinding top-down approach on customized stoichiometric SnSe precursors. The degree of crystallinity was assessed by powder x-ray diffraction (PXRD) and selected area electron diffraction. The lattice parameters, a = 4.435 b = 11.498 and c = 4.148 of the nanoparticles were calculated from the PXRD data. Energy-dispersive x-ray analysis confirmed the chemical homogeneity (49.88:51.12 at.%) of the samples. The effects of rotational velocity as well as mode of grinding on the morphology and the size of SnSe powders were investigated using electron microscopes. The direct optical transition with band gap varied from 1.75eV to 2.28eV was elucidated from UV-Vis-NIR data. Photoluminescence revealed an increase in the intensity of the emission peak at 462.97nm with angular velocities for both types of grinding. The variation of electrical resistivity (36107 ? cm) and mobility (3.451.12 cm2/Vs) with rotational speed was calculated for all the samples. The results obtained for the ball-milled nanoparticles pave the way towards the reduction of particle size, formation of stable morphology, and appreciable crystalline structure quality suitable for solar cell absorbers. Graphical Abstract: [Figure not available: see fulltext.] 2023, The Minerals, Metals & Materials Society.
- Source
- Journal of Electronic Materials, Vol-53, No. 1, pp. 298-311.
- Date
- 2024-01-01
- Publisher
- Springer
- Subject
- ball milling; dry and wet grinding; milling rate; nanoparticles; physical property; Tin monoselenide
- Coverage
- Kunjomana A.G., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560 029, India; Bibin J., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560 029, India, Department of Physics, SES College Sreekandapuram, Kerala, Kannur, 670 631, India, Department of Physics, Nirmalagiri College, Kuthuparamba, Kerala, Kannur, 670 701, India; Athira R.C., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560 029, India; Teena M., Department of Physics, St. Thomas College, Palai, Kerala, Kottayam, 686 574, India
- Rights
- Restricted Access
- Relation
- ISSN: 3615235; CODEN: JECMA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Kunjomana A.G.; Bibin J.; Athira R.C.; Teena M., “Planetary Ball Milling and Tailoring of the Optoelectronic Properties of Monophase SnSe Nanoparticles,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 23, 2025, https://archives.christuniversity.in/items/show/13795.