title: Organic fluorescent dyes supported on activated boron nitride: a promising blue light excited phosphors for high-performance white light-emitting diodes.
abstract: We report an effective and rare-earth free light conversion material synthesized via a facile fabrication route, in which organic fluorescent dyes, i.e. Rhodamine B (RhB) and fluorescein isothiocyanate (FITC) are embedded into activated boron nitride (αBN) to form a composite phosphor. The composite phosphor shows highly efficient Förster resonance energy transfer and greatly improved thermal stability, and can emit at broad visible wavelengths of 500-650 nm under the 466 nm blue-light excitation. By packaging of the composite phosphors and a blue light-emitting diode (LED) chip with transparent epoxy resin, white LED with excellent thermal conductivity, current stability and optical performance can be realized, i.e. a thermal conductivity of 0.36 W/mk, a Commission Internationale de 1'Eclairage color coordinates of (0.32, 0.34), and a luminous efficiency of 21.6 lm·W(-1). Our research opens the door toward to the practical long-life organic fluorescent dyes-based white LEDs.
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Jie
authors: J
authors: Li
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China [3] Materials Engineering, The University of Queensland, St Lucia, QLD 4072, Australia.
authors: Jing
authors: J
authors: Lin
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Yang
authors: Y
authors: Huang
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Xuewen
authors: X
authors: Xu
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Zhenya
authors: Z
authors: Liu
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Yanming
authors: Y
authors: Xue
authors: Department of Physics, Central China Normal University, Wuhan, 430079, P. R. China.
authors: Xiaoxia
authors: X
authors: Ding
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Han
authors: H
authors: Luo
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Peng
authors: P
authors: Jin
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Jun
authors: J
authors: Zhang
authors: 1] Materials Engineering, The University of Queensland, St Lucia, QLD 4072, Australia [2] Centre for Microscopy and Microanalysis, The University of Queensland, St Lucia, QLD 4072, Australia.
authors: Jin
authors: J
authors: Zou
authors: 1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, P.R. China [2] Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Tianjin 300130, P.R. China.
authors: Chengchun
authors: C
authors: Tang