Issue 60, 2015
From the journal:

RSC Advances

Enhanced photoluminescence of gallium phosphide by surface plasmon resonances of metallic nanoparticles

Guanjun Lin,a   Qian Zhang,a   Xiaoyu Lin,a   Dongfang Zhao,a   Ran Jia,a   Naikun Gao,a   Zhiyuan Zuo,a   Xiangang Xua  and  Duo Liu*a  

* Corresponding authors

a State Key Laboratory of Crystal Materials, Shandong University, 27 South Shanda Road, Jinan, Shandong 250100, P. R. China
E-mail: liuduo@sdu.edu.cn
Tel: +86-531-88363901

Abstract

We report here enhanced photoluminescence (PL) from GaP, an indirect band gap semiconductor, by metallic Au and Ag nanoparticles. The metallic Au and Ag nanoparticles were sputtering-coated onto GaP followed by heat treatment. After optimization of the surface coverage ratios, we find 5.6-fold and 14.5-fold PL enhancement for the Au and Ag coated samples, respectively. Time resolved photoluminescence spectroscopy indicates that Ag nanoparticles can effectively accelerate the PL decay time. Our results indicate that the PL enhancement comes from enhanced photon scattering and localized field enhancement of metallic Au and Ag nanoparticles.

Graphical abstract: Enhanced photoluminescence of gallium phosphide by surface plasmon resonances of metallic nanoparticles

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Article information

DOI
https://doi.org/10.1039/C5RA07368E
Article type
Paper
Submitted
23 Apr 2015
Accepted
22 May 2015
First published
25 May 2015

RSC Adv., 2015,5, 48275-48280

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Enhanced photoluminescence of gallium phosphide by surface plasmon resonances of metallic nanoparticles

G. Lin, Q. Zhang, X. Lin, D. Zhao, R. Jia, N. Gao, Z. Zuo, X. Xu and D. Liu, RSC Adv., 2015, 5, 48275 DOI: 10.1039/C5RA07368E

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