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Green light-emitting diodes based on hybrid perovskite films with mixed cesium and methylammonium cations

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Abstract

We report the formation of high-quality Cs0.4MA0.6PbBr3 thin films with nearly full surface coverage and good emission properties upon the introduction of Cs+ into perovskite crystals. The Cs0.4MA0.6PbBr3 thin films were applied as emissive layers in light-emitting diodes. A maximum external quantum efficiency of ~2.0% was achieved for these green-emitting devices.

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Acknowledgements

This work was financially supported by the National Key Research and Development Program of China (No. 2016YFB0401602), National Basic Research Program of China (No. 2015CB932200), the National Natural Science Foundation of China (Nos. 51522209, 91433204, 51372223, 91333203, 11474164, and 61405091), Natural Science Foundation of Jiangsu Province, China (Nos. BK20131413 and BK20140952) and the Fundamental Research Funds for the Central Universities (No. 2015FZA3005).

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Authors and Affiliations

  1. State Key Laboratory of Silicon Materials, Center for Chemistry of High-Performance & Novel Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China

    Junjie Si & Yang Liu

  2. Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China

    Nana Wang, Meng Xu & Jianpu Wang

  3. State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China

    Jing Li & Haiping He

  4. Center for Chemistry of High-Performance & Novel Materials, State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China

    Yizheng Jin

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  1. Junjie Si
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Correspondence to Haiping He, Jianpu Wang or Yizheng Jin.

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Si, J., Liu, Y., Wang, N. et al. Green light-emitting diodes based on hybrid perovskite films with mixed cesium and methylammonium cations. Nano Res. 10, 1329–1335 (2017). https://doi.org/10.1007/s12274-017-1432-7

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  • DOI: https://doi.org/10.1007/s12274-017-1432-7

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