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Shape and composition control of Bi19S27(Br3-x,I-x) alloyed nanowires: the role of metal ions
Wu, Yihui1; Pan, Huanhuan2; Zhou, Xin1; Li, Mingrun1; Zhou, Bin1; Yang, Chi1,3; Zhang, Wen-Hua1; Jie, Jiansheng2; Li, Can1
刊名CHEMICAL SCIENCE
2015
DOI10.1039/c5sc00708a
6期:8页:4615-4622
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]COLLOIDAL NANOCRYSTALS SYNTHESIS ; NEAR-INFRARED PHOTODETECTORS ; PHASE-CONTROLLED SYNTHESIS ; AUGMENTED-WAVE METHOD ; ORIENTED ATTACHMENT ; CDSE NANOCRYSTALS ; BAND-GAP ; SEMICONDUCTOR NANOWIRES ; CRYSTAL PHASE ; SOLAR-CELLS
英文摘要We present the first colloidal synthesis of highly uniform single-crystalline Bi19S27Br3 nanowires (NWs) with a mean diameter of similar to 9 nm and tunable lengths in the range of 0.15-2 mm in the presence of foreign metal ions (Al3+). The Al3+ ions not only control the growth of NWs, but also achieve species transformation, i.e., from Bi2S3 to Bi19S27Br3, and are not present in the resulting NWs. This colloidal chemistry approach can be expanded to prepare a family of single-crystalline Bi19S27(Br3-x,I-x) alloyed NWs with controlled compositions (0 <= x <= 3). Interestingly, these alloyed NWs show an unusual composition-independent band gap of similar to 0.82 eV, and theoretical calculations indicate that this phenomenon comes from the very minor contributions of the halogens to the valence band maximum and conduction band minimum. The photodetectors made of Bi19S27(Br3-x,I-x) alloyed NWs show a pronounced photoresponse with high stability and reproducibility, which makes the NWs potentially useful candidates in optoelectronic devices.
语种英语
WOS记录号WOS:000357931700026
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146398
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China
3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
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GB/T 7714
Wu, Yihui,Pan, Huanhuan,Zhou, Xin,et al. Shape and composition control of Bi19S27(Br3-x,I-x) alloyed nanowires: the role of metal ions[J]. CHEMICAL SCIENCE,2015,6(8):4615-4622.
APA Wu, Yihui.,Pan, Huanhuan.,Zhou, Xin.,Li, Mingrun.,Zhou, Bin.,...&Li, Can.(2015).Shape and composition control of Bi19S27(Br3-x,I-x) alloyed nanowires: the role of metal ions.CHEMICAL SCIENCE,6(8),4615-4622.
MLA Wu, Yihui,et al."Shape and composition control of Bi19S27(Br3-x,I-x) alloyed nanowires: the role of metal ions".CHEMICAL SCIENCE 6.8(2015):4615-4622.
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