Effects of annealing on optical and structural properties of zinc oxide nanocrystals

被引：19

作者：

Khachadorian, Sevak ^{[1
]}

Gillen, Roland ^{[1
]}

Choi, Sumin ^{[2
]}

Ton-That, Cuong ^{[2
]}

Kliem, Andre ^{[1
]}

Maultzsch, Janina ^{[1
]}

Phillips, Matthew R. ^{[2
]}

Hoffmann, Axel ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Festkorperphys, D-10623 Berlin, Germany

[2] Univ Technol Sydney, Sch Math & Phys Sci, Ultimo, NSW 2007, Australia

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2015年 / 252卷 / 11期

关键词：

annealing; density functional theory; nanocrystals; photoluminescence; Raman spectroscopy; ZnO; ZNO; OXYGEN; PHOTOLUMINESCENCE; TEMPERATURE; SIZE;

D O I：

10.1002/pssb.201552453

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The optical and vibrational properties of zinc oxide nanocrystals (ZnO NCs), grown by chemical precipitation method, were investigated following thermal annealing treatments in oxygen, argon, and zinc vapors at temperatures up to 900 degrees C. Raman scattering and photoluminescence techniques were utilized to show the effect of temperature annealing in various environments on optical and structural properties of ZnO NCs, referring them to the reduction and increase of certain intrinsic defect concentrations. The experimental results are complemented by density functional theory calculations for understanding the correlation between Raman modes induced with different annealing procedures and certain intrinsic point defects. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2620 / 2625

页数：6

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