Improving the Solubility of Mn and Suppressing the Oxygen Vacancy Density in Zn0.98Mn0.02O Nanocrystals via Octylamine Treatment

被引：19
|
作者：
Cheng, Yan [1 ,2 ]
Hao, Weichang [1 ,2 ,3 ]
Xu, Huaizhe [1 ,2 ]
Yu, YouXing [4 ]
Wang, Tianmin [1 ,2 ]
Chen, Rui [5 ]
Zhang, Linjuan [6 ]
Du, Y. [3 ]
Wang, X. L. [3 ]
Dou, S. X. [3 ]
机构：
[1] Beihang Univ, Dept Phys, Beijing 100191, Peoples R China
[2] Beihang Univ, Ctr Mat Phys & Chem, Beijing 100191, Peoples R China
[3] Univ Wollongong, ISEM, Wollongong, NSW 2522, Australia
[4] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
[5] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
[6] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 09期
基金：
中国国家自然科学基金;
关键词：
co-doping; oxygen vacancy; solubility; XAFS; THIN-FILMS; ZNO; FERROMAGNETISM; DEFECTS;
D O I：
10.1021/am301471v
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Zn0.98Mn0.02O nanocrystals were synthesized by the wet chemical route and were treated with different content of octylamine. The environment around Mn and the defect type and concentration were characterized by photoluminescence, Raman, X-ray photoelectron spectroscopy, and X-ray absorption fine structure. It is found that N codoping effectively enhances the solubility of Mn substituting Zn via reducing donor binding energy of impurity by the orbital hybridization between the N-acceptor and Mn-donor. On the other hand, the O atoms released from MnO6 and the N ions from octylamine occupy the site of oxygen vacancies and result in reduction of the concentration of oxygen vacancies in Zn0.98Mn0.02O nanocrystals.
引用
收藏
页码：4470 / 4475
页数：6
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