中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Ordered Zinc Antimonate Nanoisland Attachment and Morphology Control of ZnO Nanobelts by Sb Doping

文献类型:期刊论文

作者Cheng BC ; Tian BX ; Sun W ; Xiao YH ; Lei SJ ; Wang ZG
刊名journal of physical chemistry c
出版日期2009
卷号113期号:22页码:9638-9643
关键词DOPED ZNO QUANTUM DOTS PHOTOLUMINESCENCE GROWTH OXIDES NANOSTRUCTURES SEMICONDUCTORS RECOMBINATION NANOPARTICLES NANOCRYSTALS
ISSN号1932-7447
通讯作者cheng bc nanchang univ inst adv studying nanchang 330031 peoples r china. e-mail address: bcheng@vip.sina.com
中文摘要hierarchical heterostructures of zinc antimonate nanoislands on zno nanobelts were prepared by simple annealing of the polymeric precursor. sb can promote the growth of zno nanobelts along the [552] direction because of the segregation of sb dopants on the +(001) and (110) surfaces of zno nanobelts. furthermore, the ordered nanoislands of toothlike znsb2o6 along the [001](zno) direction and rodlike zn7sb2o12 along the [110](zno) direction can be formed because of the match relation of the lattice and polar charges between zno and zinc antimonate. the incorporation of sb in a zno lattice induces composition fluctuation, and the growth of zinc antimonate nanoislands on nanobelt sides induces interface fluctuation, resulting in dominance of the bound exciton transition in the room temperature near-band-edge (nbe) emission at relatively low excitation intensity. at high excitation intensity, however, auger recombination makes photogenerated electrons release phonon and relax from the conduction band to the trap states, causing the nbe emission to gradually saturate and redshift with increasing excitation intensity. the green emission more reasonably originates from the recombination of electrons in shallow traps with doubly charged v-o** oxygen vacancies. because a v-o** center can trap a photoactivated electron and change to a singly charged oxygen vacancy v-o* state, its emission intensity exhibits a maximum with increasing excitation intensity.
学科主题半导体化学
收录类别SCI
资助信息foundation of jiangxi educational committee gjj09024 natural science foundation of jiangxi province 2007gqc1720 program for innovative research team of nanchang university this work was supported by the foundation of jiangxi educational committee (gjj09024), the natural science foundation of jiangxi province (2007gqc1720), and funds from the program for innovative research team of nanchang university.
语种英语
公开日期2010-03-08
源URL[http://ir.semi.ac.cn/handle/172111/7161]  
专题半导体研究所_中国科学院半导体研究所(2009年前)
推荐引用方式
GB/T 7714
Cheng BC,Tian BX,Sun W,et al. Ordered Zinc Antimonate Nanoisland Attachment and Morphology Control of ZnO Nanobelts by Sb Doping[J]. journal of physical chemistry c,2009,113(22):9638-9643.
APA Cheng BC,Tian BX,Sun W,Xiao YH,Lei SJ,&Wang ZG.(2009).Ordered Zinc Antimonate Nanoisland Attachment and Morphology Control of ZnO Nanobelts by Sb Doping.journal of physical chemistry c,113(22),9638-9643.
MLA Cheng BC,et al."Ordered Zinc Antimonate Nanoisland Attachment and Morphology Control of ZnO Nanobelts by Sb Doping".journal of physical chemistry c 113.22(2009):9638-9643.

入库方式: OAI收割

来源:半导体研究所

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