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Issue 8, 2010
From the journal:

Journal of Materials Chemistry

Size-dependent polarized photoluminescence from Y3Al5O12: Eu3+ single crystalline nanofiber prepared by electrospinning†

Guoping Dong,*abc   Xiudi Xiao,ab   Yingzhi Chi,d   Bin Qian,ab   Xiaofeng Liu,ab   Zhijun Ma,e   E. Wu,d   Heping Zeng,d   Danping Chenab  and  Jianrong Qiu*ce  

* Corresponding authors

a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, PR China
E-mail: guoping_dong@163.com

b Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China

c Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, PR China
E-mail: qjr@zju.edu.cn

d State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China

e State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027, PR China

Abstract

After one-step calcination of the as-prepared electrospun nanofibers, single crystalline YAG (Y3Al5O12) nanofibers were successfully synthesized in situ even when the diameter reached 800 nm. X-Ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) results confirmed that the calcined YAG nanofibers were pure body-centered cubic (bcc) YAG phase. The crystallography of single crystalline YAG nanofibers was perfect. After doping with Eu3+ ions, notable polarized photoluminescence (PL) was observed from an individual YAG: Eu3+ nanofiber, which was predominately owing to the dielectric mismatch between the nanofiber and its surroundings. The PL polarization ratio (ρ) showed a strong diametrical dependence as a factor of ∼1/R when the diameter (R) is comparable to the light wavelength. The large scale, super-long, single crystalline YAG nanofibers with notable polarized PL are promising to be applied as one dimensional nanofiber lasers, linearly polarized light resources, polarized sensors, photodetectors, etc.

Graphical abstract: Size-dependent polarized photoluminescence from Y3Al5O12: Eu3+ single crystalline nanofiber prepared by electrospinning

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Article information

DOI
https://doi.org/10.1039/B921838F
Article type
Paper
Submitted
20 Oct 2009
Accepted
23 Nov 2009
First published
06 Jan 2010

J. Mater. Chem., 2010,20, 1587-1593

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Size-dependent polarized photoluminescence from Y3Al5O12: Eu3+ single crystalline nanofiber prepared by electrospinning

G. Dong, X. Xiao, Y. Chi, B. Qian, X. Liu, Z. Ma, E. Wu, H. Zeng, D. Chen and J. Qiu, J. Mater. Chem., 2010, 20, 1587 DOI: 10.1039/B921838F

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