4.6 Article

Luminescence properties of BCNO phosphor prepared by a green and simple method

Journal

MATERIALS LETTERS
Volume 94, Issue -, Pages 72-75

Publisher

ELSEVIER
DOI: 10.1016/j.matlet.2012.12.020

Keywords

Phosphors; Luminescence; BCNO; Lifetime

Funding

  1. National Natural Science Foundation of China [51172760, 51171056, 51272064]
  2. Natural Science Foundation [E2011202057]
  3. Key Basic Research Program of Hebei Province of China [12965135D]

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BCNO phosphors with tuneable emission spectra were prepared at 625 degrees C under atmosphere using boric acid, melamine and glucose as raw materials. The XRD, SEM and FTIR results show that the prepared compound is composed of cubic B2O3 and partially crystalline BCNO. The emission peak position can be tuned from 510 nm to 560 nm by changing the glucose contents and the mol ratios of boric acid and melamine. The decay process of BCNO phosphors can be fitted well by double exponential function, and the lifetimes tau(1) and tau(2) were correlated with carbon impurity concentration and other defects in BCNO phosphor, respectively. (c) 2012 Elsevier B.V. All rights reserved.

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