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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 3022–3025

Enhanced broadband excited upconversion luminescence in Ho-doped glasses by codoping with bismuth

Beibei Xu, Gongxun Bai, Juechen Wang, Qiangbing Guo, Dezhi Tan, Weibo Chen, Xiaofeng Liu, Shifeng Zhou, Jianhua Hao, and Jianrong Qiu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 3022-3025 (2014)
http://dx.doi.org/10.1364/OL.39.003022


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Abstract

We report enhanced green and red upconversion (UC) luminescence in Ho3+-doped oxyfluoride germanate glass by introducing bismuth near-infrared active centers as sensitizers. The UC excitation bands at 750 and 970 nm show a full width at half-maximum of 20 and 45 nm, respectively. Energy transfer from sensitizers, the excited-state absorption, and phonon-coupled absorption of Ho3+ jointly contribute to the enhanced UC luminescence. Our approach provides an efficient methodology to broaden the excitation bandwidth of UC luminescent materials, which may have the potential for promising application in solar cells.

© 2014 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.2540) Materials : Fluorescent and luminescent materials
(190.7220) Nonlinear optics : Upconversion

ToC Category:
Nonlinear Optics

History
Original Manuscript: February 19, 2014
Revised Manuscript: April 17, 2014
Manuscript Accepted: April 17, 2014
Published: May 14, 2014

Citation
Beibei Xu, Gongxun Bai, Juechen Wang, Qiangbing Guo, Dezhi Tan, Weibo Chen, Xiaofeng Liu, Shifeng Zhou, Jianhua Hao, and Jianrong Qiu, "Enhanced broadband excited upconversion luminescence in Ho-doped glasses by codoping with bismuth," Opt. Lett. 39, 3022-3025 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-3022


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