{"id":994,"date":"2021-09-16T21:26:03","date_gmt":"2021-09-16T13:26:03","guid":{"rendered":"http:\/\/polyhedra.cn\/zh\/?p=994"},"modified":"2022-09-07T10:12:45","modified_gmt":"2022-09-07T02:12:45","slug":"single%e2%80%90component-white%e2%80%90light-emission-in-2d-hybrid-perovskites-with-hybridized-halogen-atoms","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/single%e2%80%90component-white%e2%80%90light-emission-in-2d-hybrid-perovskites-with-hybridized-halogen-atoms\/","title":{"rendered":"Single\u2010Component White\u2010Light Emission in 2D Hybrid Perovskites with Hybridized Halogen Atoms"},"content":{"rendered":"\n<p><em><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>Adv. Opt. Mater., <\/strong><\/mark><\/em><strong>2019, 7(24), 1901335. <\/strong><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adom.201901335\">https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adom.201901335<\/a><\/p>\n\n\n\n<p>With single-component photoinduced white-light (WL) emission, low-dimensional hybrid halide perovskites have emerged as a new generation of luminescent materials; however, the effect of halogens on the intrinsic light emissions and the corresponding mechanisms is still unknown. Herein, the investigation of a family of two-dimensional (2D) hybrid perovskites R<sub>2<\/sub>PbBr<sub>4\u2212<\/sub><em><sub>x<\/sub><\/em>Cl<em><sub>x<\/sub><\/em>&nbsp;(<em>R<\/em>&nbsp;= BA<sup>+<\/sup>, PMA<sup>+<\/sup>, PEA<sup>+<\/sup>;&nbsp;<em>x<\/em>&nbsp;= 0, 1, 2, 3, 4) highlights the influence of halogens on intrinsic emission to reveal the dependence of the photoluminescence on the nature and contribution of the halogens. Ultrabroad emissions covering the entire visible-light region are achieved in the halogen hybrid systems with the stoichiometry of R<sub>2<\/sub>PbBr<sub>2<\/sub>Cl<sub>2<\/sub>&nbsp;(<em>R<\/em>&nbsp;= BA<sup>+<\/sup>, PMA<sup>+<\/sup>, PEA<sup>+<\/sup>), showing their potential as single-component WL phosphors in solid-state lighting devices. The origin of the WL emissions is the synergistic recombination emission of free excitons and self-trapped excitons. The ratio of halogens (Br\/Cl) is confirmed to be a critical factor to fine-tune the intrinsic emission properties. This work provides a feasible strategy to achieve single-component WL emission in 2D hybrid perovskites, and proposes a method for regulating halogen contents for optimizing luminescent properties.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adv. Opt. Mater., 2019, 7(24), 1901335. https:\/\/onlinel [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[79],"class_list":["post-994","post","type-post","status-publish","format-standard","hentry","category-lab_papers_2019","tag-79"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/994","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=994"}],"version-history":[{"count":3,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/994\/revisions"}],"predecessor-version":[{"id":1914,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/994\/revisions\/1914"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=994"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}