Effect of pressure and excitation power on up-conversion assisted white light emission in yttrium oxide and silicate nanophosphors

Gonul Eryurek, Murat Erdem, Gokhan Bilir

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

Abstract

The production of warm artificial white light (WL) become a big challenge of engineers and scientists after the revolutionary introduction of incandescent lamp by Thomas Edison. Although several strategies have been developed in past, none of them was able to reach color quality of incandescent lamp because all these technologies suffer from low Color Rendering Indexes (CRI) and/or high Correlated Color Temperatures (CCT) which are not suitable for human perception. Recently, we were able to produce white light emission from un-doped and REIs doped Yttrium Oxide and Silicates with color quality parameters comparable with those of an incandescent lamp induced by infrared laser diode excitation. The characteristics of the white light emission both from yttrium oxide and silicate and the physical parameters that affect the white light emission were determined. A detailed comparison of the white light emission from yttrium oxide and yttrium silicate were made. The role of the type and the amount of the dopant ions on the production of the white light emission were determined.

Original languageEnglish
Title of host publicationAdvanced Manufacturing, Electronics and Microsystems - TechConnect Briefs 2016
EditorsBart Romanowicz, Matthew Laudon, Fiona Case, Fiona Case, Bart Romanowicz
PublisherTechConnect
Pages234-237
Number of pages4
ISBN (Electronic)9780997511734
Publication statusPublished - 2016
Event10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 19th Annual Nanotech Conference and Expo, and the 2016 National SBIR/STTR Conference - Washington, United States
Duration: 22 May 201625 May 2016

Publication series

NameAdvanced Materials - TechConnect Briefs 2016
Volume4

Conference

Conference10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 19th Annual Nanotech Conference and Expo, and the 2016 National SBIR/STTR Conference
Country/TerritoryUnited States
CityWashington
Period22/05/1625/05/16

Keywords

  • Absorption
  • Emission
  • Nanophosphor
  • White light
  • XRD

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