Thermal and Optical Properties of In and In2O3 Nanoparticles Synthesized Using Pulsed Plasma in Water. Issue 11 (12th March 2018)

• Record Type: Journal Article
• Authors: Kelgenbaeva, Zhazgul; Khandaker, Jahirul I.; Ihara, Hirotaka; Omurzak, Emil; Sulaimankulova, Saadat; Mashimo, Tsutomu
• Is Part Of: Physica status solidi. Volume 215:Issue 11(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-03-12
• Subjects: atomic emission spectroscopy -- band gap energy -- indium -- indium oxide -- nanoparticles -- pulsed plasma in water; Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201700910
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract : We present small indium (In) nanoparticles with an average diameter of 4.5 nm synthesized by pulsed plasma in water. Slightly increased lattice constants and thermal stability of the tetragonal In are revealed by X‐ray diffraction analysis, Rietveld refinement, and thermogravimetric analysis. The highly crystalline body‐centered cubic indium oxide (In2 O3 ) nanoparticles with an average diameter of 12 nm and various shapes (semispherical, semihexagonal, and semicubic) are obtained by annealing the as‐synthesized In nanoparticles at 450 °C. The bandgap energy of the In2 O3 nanoparticles is 3.63 eV; the value is 25% higher than that of bulk In2 O3 and comparable to those of In2 O3 nanoparticles/thin films prepared by other methods, despite their smaller size. Abstract : Thermally stable indium (In) nanoparticles with an average diameter of 4.5 nm and highly crystalline In2 O3 nanoparticles with band‐gap energy of 3.63 eV is synthesized using a simple method – pulsed plasma in water and the annealing. The small size and interesting optical properties of the nanoparticles open up new possibilities for their photovoltaic applications.