{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,16]],"date-time":"2026-08-16T18:22:45Z","timestamp":1786904565310,"version":"build-2736575974"},"reference-count":33,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T00:00:00Z","timestamp":1661299200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Development Project of Jilin Province","award":["20180201057YY"],"award-info":[{"award-number":["20180201057YY"]}]},{"name":"Science and Technology Development Project of Jilin Province","award":["20160101231JC"],"award-info":[{"award-number":["20160101231JC"]}]},{"name":"Science and Technology Development Project of Jilin Province","award":["11974141"],"award-info":[{"award-number":["11974141"]}]},{"name":"Science and Technology Development Project of Jilin Province","award":["1207414"],"award-info":[{"award-number":["1207414"]}]},{"name":"Science and Technology Development Project of Jilin Province","award":["62105054"],"award-info":[{"award-number":["62105054"]}]},{"name":"Science and Technology Development Project of Jilin Province","award":["DUT22YG117"],"award-info":[{"award-number":["DUT22YG117"]}]},{"name":"National Natural Science Foundation of China","award":["20180201057YY"],"award-info":[{"award-number":["20180201057YY"]}]},{"name":"National Natural Science Foundation of China","award":["20160101231JC"],"award-info":[{"award-number":["20160101231JC"]}]},{"name":"National Natural Science Foundation of China","award":["11974141"],"award-info":[{"award-number":["11974141"]}]},{"name":"National Natural Science Foundation of China","award":["1207414"],"award-info":[{"award-number":["1207414"]}]},{"name":"National Natural Science Foundation of China","award":["62105054"],"award-info":[{"award-number":["62105054"]}]},{"name":"National Natural Science Foundation of China","award":["DUT22YG117"],"award-info":[{"award-number":["DUT22YG117"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["20180201057YY"],"award-info":[{"award-number":["20180201057YY"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["20160101231JC"],"award-info":[{"award-number":["20160101231JC"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["11974141"],"award-info":[{"award-number":["11974141"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["1207414"],"award-info":[{"award-number":["1207414"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["62105054"],"award-info":[{"award-number":["62105054"]}]},{"name":"Student Innovation Training Program of CIOMP","award":["DUT22YG117"],"award-info":[{"award-number":["DUT22YG117"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["20180201057YY"],"award-info":[{"award-number":["20180201057YY"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["20160101231JC"],"award-info":[{"award-number":["20160101231JC"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["11974141"],"award-info":[{"award-number":["11974141"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["1207414"],"award-info":[{"award-number":["1207414"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["62105054"],"award-info":[{"award-number":["62105054"]}]},{"name":"Fundamental Research Funds for the Central Universities","award":["DUT22YG117"],"award-info":[{"award-number":["DUT22YG117"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Substantial progress has been made in perovskite light-emitting diodes (PeLEDs), but the fabrication of high-performance blue PeLEDs still remains a challenge due to its low efficiency, spectral instability and short operational lifetime. How to produce an efficient and stable blue PeLED is the key to realizing the application of PeLEDs in full-color displays. We herein report a blue PeLED usint the ligand-assisted reprecipitation method, in which phenylethylammonium bromide (PEABr) was used as ligands, and chloroform was used as anti-solvent to prepare blue perovskite nanocrystal films. By increasing the PEABr content from 40% to 100% (The ratio of x% PEABr refers to the molar ratio between PEABr and PbBr2), the film quality is highly improved, and the emission exhibits a blue shift. Introducing a poly(9-vinylcarbazole) (PVK) hole transport layer into the device, the PVK layer can not only achieve efficient hole injection, but can also isolate the PEDOT: PSS layer to inhibit the non-radiative recombination of metal halide luminescence layer, reduce surface ion defects and successfully inhibit halide atom migration. Finally, the PeLED presents a stable electroluminescence under different driving voltages without any red shift.<\/jats:p>","DOI":"10.3390\/nano12172906","type":"journal-article","created":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T23:48:58Z","timestamp":1661384938000},"page":"2906","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Spectrally Stable Blue Light-Emitting Diodes Based on All-Inorganic Halide Perovskite Films"],"prefix":"10.3390","volume":"12","author":[{"given":"Huidan","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Dong_Nanhu Road 3888, Changchun 130033, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"},{"name":"Changchun University of Chinese Medicine, Changchun 130017, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Su","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Dong_Nanhu Road 3888, Changchun 130033, China"},{"name":"School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xulan","family":"Xue","sequence":"additional","affiliation":[{"name":"Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), Department of Physics, Jilin University, Changchun 130012, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinghui","family":"Zeng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Dong_Nanhu Road 3888, Changchun 130033, China"},{"name":"Changchun University of Chinese Medicine, Changchun 130017, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yifang","family":"Sun","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Dong_Nanhu Road 3888, Changchun 130033, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Zhu","sequence":"additional","affiliation":[{"name":"Changchun University of Chinese Medicine, Changchun 130017, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiguang","family":"Ye","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Dong_Nanhu Road 3888, Changchun 130033, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenyu","family":"Ji","sequence":"additional","affiliation":[{"name":"Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), Department of Physics, Jilin University, Changchun 130012, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangyang","family":"Leng","sequence":"additional","affiliation":[{"name":"Changchun University of Chinese Medicine, Changchun 130017, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3692","DOI":"10.1021\/nl5048779","article-title":"Nanocrystals of Cesium Lead Halide Perovskites (CsPbX(3), X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut","volume":"15","author":"Protesescu","year":"2015","journal-title":"Nano Lett."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"33020","DOI":"10.1021\/acsami.7b10612","article-title":"Highly Controllable and Efficient Synthesis of Mixed-Halide CsPbX3 (X = Cl, Br, I) Perovskite QDs toward the Tunability of Entire Visible Light","volume":"9","author":"Su","year":"2017","journal-title":"ACS Appl. 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