ZnS and ZnO nanocomposite for near white light tuning applications

A. Zazueta-Raynaud, A. Cordova-Rubio, R. Lopez-Delgado, J. E. Pelayo-Ceja, R. C. Carrillo-Torres, R. Sanchez-Zeferino, M. E. Alvarez-Ramos, A. Ayon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

There is currently an increased interest in demonstrating white light emitting devices that exhibit a higher energy efficiency compared to the ubiquitous incandescent sources and that are at the same time cost-competitive as well as compatible with a mass-production environment. Under the aforementioned stringent constraints, photoluminescent quantum dots can be considered a suitable option to demonstrate said white light emitting constructs. To this end, the present report discusses the synthesis and characterization of nanoparticles of zinc oxide (ZnO) and zinc sulphide (ZnS) that exhibit Stokes shift effects and optical properties of light absorption in the UV range (∼340 nm) and luminescent capabilities obtaining peaks centered in 525 nm and 440 nm, respectively. Colloidal mixtures of these nanostructures were made with different volumetric ratio in order to achieve a near white color emission. Photoluminescence studies of the mixtures were carried out and a chromaticity diagram was made to localize and identify a trend in the luminescent variations of the samples within the International Commission on Illumination (CIE) diagram. The experimental results indicate that quantum dots could be a viable alternative for high-efficiency and cost-competitive white light emitting devices.

Original languageEnglish
Title of host publication2019 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728132860
DOIs
StatePublished - May 2019
Event2019 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2019 - Paris, France
Duration: 12 May 201915 May 2019

Publication series

Name2019 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2019

Conference

Conference2019 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2019
Country/TerritoryFrance
CityParis
Period12/05/1915/05/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

  • Quantum dots
  • luminescence
  • stokes shift
  • white emissions.

Fingerprint

Dive into the research topics of 'ZnS and ZnO nanocomposite for near white light tuning applications'. Together they form a unique fingerprint.

Cite this