Highly Emissive and Color-Tunable CuInS2-Based Colloidal Semiconductor Nanocrystals: Off-Stoichiometry Effects and Improved Electroluminescence Performance
文献类型：期刊论文
| 作者 | Chen, Bingkun1; Zhong, Haizheng1; Zhang, Wenqing2; Tan, Zhan'ao2; Li, Yongfang3; Yu, Cairan4; Zhai, Tianyou5; Bando, Yoshio5; Yang, Shengyi1; Zou, Bingsuo1 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2012-05-23 |
| 卷号 | 22期号:10页码:2081-2088 |
| 关键词 | Cuins2 Colloidal Nanocrystals Photoluminescence Electroluminescence Light-emitting Diodes |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.201102496 |
| 英文摘要 | The off-stoichiometry effects and gram-scale production of luminescent CuInS2-based semiconductor nanocrystals, as well as their application in electroluminescence devices are reported. The crystal structures and optical properties of CuInS2 nanocrystals can be significantly influenced by controlling their [Cu]/[In] molar ratio. A simple model adapted from the bulk materials is proposed to explain their off-stoichiometry effects. Highly emissive and color-tunable CuInS2-based NCs are prepared by a combination of [Cu]/[In] molar ratio optimization, ZnS shell coating, and CuInS2ZnS alloying. The method is simple, hassle-free, and easily scalable to fabricate tens of grams of nanocrystal powders with photoluminescence quantum yields up to around 65%. Furthermore, the performance of high-quality CuInS2-based NCs in electroluminescence devices is examined. These devices have lower turn-on voltages of around 5 V, brighter luminance up to approximately 2100 cd m-2 and improved injection efficiency of around 0.3 lm W-1 (at 100 cd m-2) in comparison to recent reports. |
| 语种 | 英语 |
| WOS记录号 | WOS:000304046200009 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48983]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhong, Haizheng |
| 作者单位 | 1.Beijing Inst Technol, Micro Nano Res Ctr, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.N China Elect Power Univ, New & Renewable Energy Beijing Key Lab, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing 100190, Peoples R China 5.Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Bingkun,Zhong, Haizheng,Zhang, Wenqing,et al. Highly Emissive and Color-Tunable CuInS2-Based Colloidal Semiconductor Nanocrystals: Off-Stoichiometry Effects and Improved Electroluminescence Performance[J]. ADVANCED FUNCTIONAL MATERIALS,2012,22(10):2081-2088. |
| APA | Chen, Bingkun.,Zhong, Haizheng.,Zhang, Wenqing.,Tan, Zhan'ao.,Li, Yongfang.,...&Zou, Bingsuo.(2012).Highly Emissive and Color-Tunable CuInS2-Based Colloidal Semiconductor Nanocrystals: Off-Stoichiometry Effects and Improved Electroluminescence Performance.ADVANCED FUNCTIONAL MATERIALS,22(10),2081-2088. |
| MLA | Chen, Bingkun,et al."Highly Emissive and Color-Tunable CuInS2-Based Colloidal Semiconductor Nanocrystals: Off-Stoichiometry Effects and Improved Electroluminescence Performance".ADVANCED FUNCTIONAL MATERIALS 22.10(2012):2081-2088. |
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来源：化学研究所
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