Near white light emission from ZnO nanostructures

Sanjaya Brahma, P. Jaiswal, K. K. Nanda, L. M. Kukreja, S. A. Shivashankar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We report white light emission from ZnO nanostructures in powder form, prepared by microwave irradiation-assisted chemical synthesis, in the presence of a structure directing agent. Determination of their crystallinity, actual shape, and orientation was made using X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and optical properties have been studied through photoluminescence (PL), measured using He-Cd laser (325 nm) as the excitation source. There is a noticeable variation in the luminescence correlated with variation of process parameters, such as microwave power, duration of irradiation, and the type/concentration of surfactants. The CIE (Commission Internationale l'Eclairage) diagram shows that the luminescence lies in yellow region of the color space. As the luminescence from the powder of ZnO lies in the yellow region, it is possible to produce white light from the powder of ZnO by using a blue laser as the excitation source.

Original languageEnglish
Title of host publicationNanomaterials Integration for Electronics, Energy and Sensing
Pages15-20
Number of pages6
DOIs
Publication statusPublished - 2011 Sep 30
Event2010 MRS Fall Meeting - Boston, MA, United States
Duration: 2010 Nov 292010 Dec 3

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1303
ISSN (Print)0272-9172

Other

Other2010 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period10-11-2910-12-03

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Brahma, S., Jaiswal, P., Nanda, K. K., Kukreja, L. M., & Shivashankar, S. A. (2011). Near white light emission from ZnO nanostructures. In Nanomaterials Integration for Electronics, Energy and Sensing (pp. 15-20). (Materials Research Society Symposium Proceedings; Vol. 1303). https://doi.org/10.1557/opl.2011.401