Issue 23, 2013
From the journal:

RSC Advances

Characteristics of point defects on the optical properties of ZnO: revealed by Al–H co-doping and post-annealing

Jinpeng Lv,ab   Chundong Li*a  and  J. J. BelBrunob  

* Corresponding authors

a Science and Technology on Materials Performance Evaluating Technology in Space Environment Laboratory, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, PR China
E-mail: hitljp@gmail.com
Fax: +86-451-8641-5168
Tel: +86-451-8641-2462

b Department of Chemistry, Dartmouth College, Hanover, NH 03755, USA

Abstract

Understanding the influences of lattice defect evolution on the optical properties of ZnO is of significance. To clarify this, we adopted typical treatments on ZnO using Al–H co-doping and post-annealing, combined with comprehensive characterization (absorption spectrum, Raman scattering, photoluminescence, electronic paramagnetic resonance and positron annihilation). The results reveal that the visible luminescence can arise from the VO, VZn and AlZn–Oi defects, while the defect centers responsible for the blue band optical absorption are assigned to ionized Zni and V+O. SEM images illustrated that H+ implantation diluted the ZnAl2O4 second phase, which reaccumulated after O2 annealing.

Graphical abstract: Characteristics of point defects on the optical properties of ZnO: revealed by Al–H co-doping and post-annealing

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Article information

DOI
https://doi.org/10.1039/C3RA40837J
Article type
Communication
Submitted
19 Feb 2013
Accepted
09 Apr 2013
First published
12 Apr 2013

RSC Adv., 2013,3, 8652-8656

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Characteristics of point defects on the optical properties of ZnO: revealed by Al–H co-doping and post-annealing

J. Lv, C. Li and J. J. BelBruno, RSC Adv., 2013, 3, 8652 DOI: 10.1039/C3RA40837J

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