Work

A simple sonochemical approach for synthesis of selenium nanostructures and investigation of its light harvesting application

Year: 2014

Type: article

Abstract: Selenium (Se) nanostructures were synthesized by a sonochemical method using SeCl₄ as a new precursor for Se nanostructures. Moreover, hydrazine, potassium borohydride, and thioglycolic acid were used as reducing reagents in aqueous solution. Ultrasonic power, irradiation time, reducing agent, solvent, HCl, NaOH, and the surfactant were changed in order to investigate the effect of preparation parameters on the morphology and particle size of selenium. The obtained Se with different morphologies and sizes was characterized by XRD, SEM, TEM, EDS, and DRS. The selenium nanostructures exhibited enhanced photocatalytic activity in the degradation of methylene blue (MB) under visible light irradiation. Furthermore, to examine the solar cell application of as-synthesized selenium nanostructure, FTO/TiO₂/Se/Pt-FTO and FTO/Se/CdS/Pt-FTO structures were created by deposited selenium film on top of the TiO₂ layer and FTO glass prepared by Doctor's blade method, respectively.

Source: Ultrasonics Sonochemistry

DOI: 10.1016/j.ultsonch.2014.09.006

Authors: Mokhtar Panahi-Kalamuei, Mehdi Mousavi-Kamazani, Masoud Salavati-Niasari, S. Mostafa Hosseinpour-Mashkani

Institutions: University of Kashan, Islamic Azad University of Kashan, Qom Islamic Azad University

Language: English

Topic: Ultrasound and Cavitation Phenomena

Subfield: Acoustics and Ultrasonics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,710

Funder: University of Kashan