Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes
文献类型：期刊论文
| 作者 | B.Zhao; Y.S.Lau; A.A.Syed; F.M.Jin; F.R.Zhu |
| 刊名 | Journal of Materials Chemistry C
 |
| 出版日期 | 2019 |
| 卷号 | 7期号:18页码:5293-5298 |
| 关键词 | halide perovskites,film,nanocrystals,coverage,bright,Materials Science,Physics |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c8tc05988h |
| 英文摘要 | Perovskite light-emitting diodes (PeLEDs) have received increasing attention because of their unique saturated emission color and solution fabrication capability. In this work, we report our effort towards obtaining high performance cesium lead tribromide (CsPbBr3)-based PeLEDs through controlled growth of the inorganic polycrystalline perovskite emissive layer. The effect of a small molecule additive 2-((4-biphenylyl)-5-phenyl-1,3,4-oxadiazole) (PBD) on the formation of the uniform pinhole free one-step-processed CsPbBr3-based emissive layer was analyzed. The results reveal that the use of the PBD additive in the precursor solution enables the suppression of the leakage current in the PeLEDs, which is realized through improved charge transport and controlled growth of the CsPbBr3-emissive layer. A maximum luminance of 9396 cd m(-2) was realized for the PeLEDs, prepared using an optimal PBD additive concentration in the perovskite precursor solution, which is >4 times that of the control PeLEDs fabricated using a pure CsPbBr3-precursor solution (2455 cd m(-2)). |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/62762]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | B.Zhao,Y.S.Lau,A.A.Syed,et al. Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes[J]. Journal of Materials Chemistry C,2019,7(18):5293-5298. |
| APA | B.Zhao,Y.S.Lau,A.A.Syed,F.M.Jin,&F.R.Zhu.(2019).Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes.Journal of Materials Chemistry C,7(18),5293-5298. |
| MLA | B.Zhao,et al."Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes".Journal of Materials Chemistry C 7.18(2019):5293-5298. |
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