Effect of centrifugation time on the optical properties of colloidal silicon nanoparticle. (2018)

• Record Type: Journal Article
• Authors: Biswas, Susmita; Nandi, Anupam; Dhara, Arnab; Baral, Apurba; Saha, Hiranmay; Mukherjee, Nillohit; Hossain, Syed Minhaz
• Is Part Of: Materials today. Volume 5:Number 4(2018)Part 3
• Page Start: 10028
• Page End: 10033
• Publication Date: 2018
• Subjects: Silicon nanoparticles -- Mechanical milling -- Centrifugation -- Optical properties -- Optoelectronic material; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.10.202
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: We report synthesis of colloidal suspension of silicon (Si) nanoparticle (NP) with native silicon dioxide (SiO2 ) layer by mechanical milling. Different size distribution of Si NPs in the colloid has been obtained by varying the centrifugation time. Width of the particle distribution curve of Si NPs was found to decrease with increasing centrifugation time of the colloidal suspensions, which has been established from the FESEM analysis. The variation of particle size also put its signature in the photoluminescence (PL) properties of the prepared materials.