| A high efficient photoluminescence zn-cu-in-s/zns quantum dots with long lifetime | |
| Wang, Xin1,2; Liang, Zhurong2,3; Xu, Xueqing2,3; Wang, Nan1,2; Fang, Jun1; Wang, Junxia2,3; Xu, Gang2,3 | |
| 刊名 | Journal of alloys and compounds
 |
| 2015-08-15 | |
| 卷号 | 640页码:134-140 |
| 关键词 | Cuins2 Quantum dots Photoluminescence Long lifetime |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2015.03.249 |
| 通讯作者 | Xu, xueqing(xuxq@ms.giec.ac.cn) |
| 英文摘要 | Highly cu-rich copper indium sulfide (cuins2, cis) quantum dots were synthesized utilizing copper chloride (cucl) and indium acetate (in(ac)(3)) as metal cation precursors, combined with n-dodecanethiol (ddt) as a coordinating sulfur source and solvent. with excess of in(ac)(3), i.e. with cu/in ratios of 1/4, together with zn2+ ions post-treatment, a relatively high photoluminescence quantum yield (qy) of similar to 73% with long average lifetime of similar to 359 ns has been obtained, which is proposed to be attributed to the cu-rich defect states in the cis nanocrystals (ncs) nuclei. meanwhile, the formation of in-rich cis-zns alloy, i.e. zn-cu-in-s (zcis) with high density of cu vacancies, combined with the surface passivation of zns overlay resulted in a high qy. finally, the formation mechanism of the zcis/zns with cu-rich nuclei has been proposed. (c) 2015 elsevier b.v. all rights reserved. |
| WOS关键词 | LIGHT-EMITTING-DIODES ; SEMICONDUCTOR NANOCRYSTALS ; CUINS2 NANOCRYSTALS ; OPTICAL-PROPERTIES ; NANOPARTICLES ; TERNARY ; ELECTROLUMINESCENCE ; PRECURSOR ; FILMS ; SHAPE |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000354195600022 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376566 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xu, Xueqing |
| 作者单位 | 1.Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xin,Liang, Zhurong,Xu, Xueqing,et al. A high efficient photoluminescence zn-cu-in-s/zns quantum dots with long lifetime[J]. Journal of alloys and compounds,2015,640:134-140. |
| APA | Wang, Xin.,Liang, Zhurong.,Xu, Xueqing.,Wang, Nan.,Fang, Jun.,...&Xu, Gang.(2015).A high efficient photoluminescence zn-cu-in-s/zns quantum dots with long lifetime.Journal of alloys and compounds,640,134-140. |
| MLA | Wang, Xin,et al."A high efficient photoluminescence zn-cu-in-s/zns quantum dots with long lifetime".Journal of alloys and compounds 640(2015):134-140. |
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