Very efficient green light-emitting diodes based on polycrystalline CH (NH3)(2)PbBr3 film achieved by regulating precursor concentration and employing novel anti-solvent
文献类型：期刊论文
| 作者 | Zhu, Yongzhang1,2; Zhao, Xiaofei2,3; Zhang, Baohua2; Yao, Bing2,3; Li, Zhanguo2; Qu, Yi1; Xie, Zhiyuan2 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 55页码:35-41 |
| 关键词 | Solution-processing Light-emitting Diodes Perovskite Formamidinium Lead Halide |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2017.12.041 |
| 英文摘要 | Formamidinium lead halide CH(NH3)(2)PbX3 (FAPbX(3)) perovskite materials have achieved significant progress in efficient and stable single-junction/tandem perovskite solar cells, which is due to the promising thermal and air stability features. However, successful application of these materials in perovskite light-emitting diodes (PeLEDs) is scarce. Herein, regulating the FABr:PbBr2 precursor concentration procedure is utilized to prepare very efficient PeLEDs based on CH(NH3)(2)PbBr3 (FAPbBr(3)). The resultant FAPbBr3 film prepared at optimized 10 wt% condition shows the satisfied exciton radiative rate and low nonradiative rate, and a high photoluminescent quantum yield. In combination with novel ethyl acetate (EA) anti-solvent spin-washing method, the resultant FAPbBr(3) film shows compact, uniform and high coverage morphology characteristics. The PeLEDs show a maximum current efficiency of 13.4 cd A(-1), an external quantum efficiency of 3.5%, a maximum luminance close to 10000 cd m(-2), and an extremely high power efficiency of 19.1 lm W-1, respectively. This performance is the best among all reported on FAPbBr(3) type PeLEDs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000425979000006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45709]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Baohua; Qu, Yi; Xie, Zhiyuan |
| 作者单位 | 1.Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Jilin, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Yongzhang,Zhao, Xiaofei,Zhang, Baohua,et al. Very efficient green light-emitting diodes based on polycrystalline CH (NH3)(2)PbBr3 film achieved by regulating precursor concentration and employing novel anti-solvent[J]. ORGANIC ELECTRONICS,2018,55:35-41. |
| APA | Zhu, Yongzhang.,Zhao, Xiaofei.,Zhang, Baohua.,Yao, Bing.,Li, Zhanguo.,...&Xie, Zhiyuan.(2018).Very efficient green light-emitting diodes based on polycrystalline CH (NH3)(2)PbBr3 film achieved by regulating precursor concentration and employing novel anti-solvent.ORGANIC ELECTRONICS,55,35-41. |
| MLA | Zhu, Yongzhang,et al."Very efficient green light-emitting diodes based on polycrystalline CH (NH3)(2)PbBr3 film achieved by regulating precursor concentration and employing novel anti-solvent".ORGANIC ELECTRONICS 55(2018):35-41. |
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来源：化学研究所
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