Near-infrared quantum cutting platform in thermally stable phosphate phosphors for solar cells

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Tzu-Chen Liu
  • Gongguo Zhang
  • Xuebin Qiao
  • Jing Wang
  • Hyo Jin Seo
  • Ru-Shi Liu

Detail(s)

Original languageEnglish
Pages (from-to)7352-7357
Journal / PublicationInorganic Chemistry
Volume52
Issue number13
Publication statusPublished - 1 Jul 2013
Externally publishedYes

Abstract

This study investigated the photoluminescent properties of Tb 3+-Yb3+-, Ce3+-Tb3+-Yb 3+-, and Eu2+-Yb3+-doped KSrPO4. The samples were prepared by a solid-state reaction with various doping concentrations. Emission at near-infrared range was focused on the application of luminescent solar concentrator for solar cells. Quantum cutting (QC) energy transfer was confirmed by the lifetimes of the donor. Near-infrared QC involved emission of Yb3+ ions was achieved by excitation of Ce3+, Tb3+, and Eu2+ ions, where the energy transfer processes occurred from Ce3+ to Tb3+ to Yb3+, Tb 3+ to Yb3+, and Eu2+ to Yb3+, respectively. In addition, the concentration quenching effect of Yb3+ ions was avoided by low doping concentrations. The overall quantum efficiencies were calculated, and the maximum efficiency reaches 139%. The energy diagrams for divalent and trivalent rare-earth ions in KSrPO4 host lattice were analyzed. Results of this study demonstrate that heat-stable phosphate phosphors are promising candidates for increasing the efficiency of silicon-based solar cells. © 2013 American Chemical Society.

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Near-infrared quantum cutting platform in thermally stable phosphate phosphors for solar cells. / Liu, Tzu-Chen; Zhang, Gongguo; Qiao, Xuebin et al.
In: Inorganic Chemistry, Vol. 52, No. 13, 01.07.2013, p. 7352-7357.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review