Issue 16, 2013
From the journal:

RSC Advances

Pre-perovskite nanofiber: a new direct-band gap semiconductor with green and near infrared photoluminescence†

Zhaohui Ren,a   Guangyin Jing,b   Yong Liu,a   Jingyun Gao,c   Zhen Xiao,a   Zhenya Liu,a   Simin Yin,a   Shifeng Zhou,a   Gang Xu,a   Xiang Li,a   Ge Shena  and  Gaorong Han*a  

* Corresponding authors

a State key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou, 310027, P. R. China
E-mail: hgr@zju.edu.cn

b Department of Physics, Northwest University, Xi'an, 710069, P. R. China

c State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, P. R. China

Abstract

Perovskite-related oxides exhibiting fascinating electric and magnetic properties are important functional materials. We report, for the first time, that pre-perovskite (PP) PbTiO3, characterized by one-dimensional (1D) TiO6 octahedron columns, has a direct-band structure with a gap of 3.20 eV. The faceted single-crystal nanofibers of PP-PbTiO3 demonstrate strong green and near infrared (NIR) photoluminescence (PL) emission at room temperature, which are intrinsic and subjected to quasi-1D crystal structure and electronic band structure. These nanofibers serving as new direct band-gap semiconductors may find applications in novel optical and optoelectronic devices.

Graphical abstract: Pre-perovskite nanofiber: a new direct-band gap semiconductor with green and near infrared photoluminescence

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Article information

DOI
https://doi.org/10.1039/C3RA23413D
Article type
Paper
Submitted
19 Dec 2012
Accepted
30 Jan 2013
First published
30 Jan 2013

RSC Adv., 2013,3, 5453-5458

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Pre-perovskite nanofiber: a new direct-band gap semiconductor with green and near infrared photoluminescence

Z. Ren, G. Jing, Y. Liu, J. Gao, Z. Xiao, Z. Liu, S. Yin, S. Zhou, G. Xu, X. Li, G. Shen and G. Han, RSC Adv., 2013, 3, 5453 DOI: 10.1039/C3RA23413D

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