{"id":49635,"date":"2020-08-19T16:31:00","date_gmt":"2020-08-19T13:31:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/method-to-develop-blue-emitting-zero-dimensional-all-inorganic-metal-halides\/"},"modified":"2020-08-19T16:31:00","modified_gmt":"2020-08-19T13:31:00","slug":"method-to-develop-blue-emitting-zero-dimensional-all-inorganic-metal-halides","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/method-to-develop-blue-emitting-zero-dimensional-all-inorganic-metal-halides\/","title":{"rendered":"#Method to develop blue-emitting zero-dimensional all-inorganic metal halides"},"content":{"rendered":"

“#Method to develop blue-emitting zero-dimensional all-inorganic metal halides<\/strong>”<\/p>\n

\n
\n
2<\/sub>ZnBr4<\/sub> caused an evident excitonic absorption peak, and successfully transformed the weakly luminescent Cs2<\/sub>ZnBr4<\/sub> to a bright blue-emitting material with high PLQY. Credit: CHENG Pengfei” data-thumb=”https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2020\/methodtodeve.jpg”><\/p>\n
\"Method2<\/sub>ZnBr4<\/sub> caused an evident excitonic absorption peak, and successfully transformed the weakly luminescent Cs2<\/sub>ZnBr4<\/sub> to a bright blue-emitting material with high PLQY. Credit: CHENG Pengfei” width=”500″><\/img>
\n The doping of Cu into 0D Cs2<\/sub>ZnBr4<\/sub> caused an evident excitonic absorption peak, and successfully transformed the weakly luminescent Cs2<\/sub>ZnBr4<\/sub> to a bright blue-emitting material with high PLQY. Credit: CHENG Pengfei
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

All-inorganic zero-dimensional (0D) metal halides are widely applied in the fields of display and solid-state lighting due to their excellent photoluminescence (PL) properties and high stability.<\/p>\n

\n <\/section>\n

At present, 0D metal halides have achieved high photoluminescence quantum yields (PLQYs) in green, yellow and red light region. By contrast, the development of high-efficiency blue-emitting 0D metal halides remains challenging.<\/p>\n

Recently, a research group led by Prof. Han Keli from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences studied the dynamic mechanism of all-inorganic 0D metal halides, and obtained high PLQY in pure-blue spectral region by doping copper into cesium zinc halides.
\nThis work was published in Angew. Chem. Int. Ed<\/i>. on August 12.
\nThe scientists synthesized copper doped 0D cesium zinc halide single crystals. After the incorporation of Cu into Cs2<\/sub>ZnBr4<\/sub>, an obvious exciton absorption peak appeared, while the PL peak position did not change.
\nThe PLQY increased from 3.6% to 65.3%. Meanwhile, the PL lifetime was significantly longer, indicating that Cu doping could effectively inhibit the non-radiative recombination process in Cs2<\/sub>ZnBr4<\/sub>.
\nDetailed spectral analysis showed that the blue emission in Cs2<\/sub>ZnBr4<\/sub>:Cu originated from triplet self-trapped excitons, and exhibited characteristics of dual emission at low temperatures. And Cs2<\/sub>ZnBr4<\/sub>:Cu also exhibited good humidity and thermal stability.
\nIn addition, scientists obtained an efficient sky-blue emission (PLQY ~73.1%) of Rb2<\/sub>ZnCl4<\/sub>:Cu by substituting a-site cation and halogen.
\nThis work provides an effective strategy for the development of environmentally friendly, low-cost and high-efficiency blue-emitting 0D all-inorganic metal halides.<\/p>\n

\n<\/hr>\n
\n<\/hr>\n
\n

More information:<\/strong>
\n Pengfei Cheng et al. Doped Zero\u2010Dimensional Cesium Zinc Halides for High Efficiency Blue Light Emission, Angewandte Chemie International Edition<\/i> (2020). DOI: 10.1002\/anie.202008098\n <\/div>\n

\n Citation<\/strong>:
\n Method to develop blue-emitting zero-dimensional all-inorganic metal halides (2020, August 19)
\n retrieved 19 August 2020
\n from https:\/\/phys.org\/news\/2020-08-method-blue-emitting-zero-dimensional-all-inorganic-metal.html<\/p>\n

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n

\n

If you want to read more Like this articles, you can visit our Science category.<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n

\n

if you want to watch Movies<\/a> or Tv Shows go to Dizi.BuradaBiliyorum.Com<\/a> <\/span> for forums sites go to Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

“#Method to develop blue-emitting zero-dimensional all-inorganic metal halides” The doping of Cu into 0D Cs2ZnBr4 caused an evident excitonic absorption peak, and successfully transformed the weakly luminescent Cs2ZnBr4 to a bright blue-emitting material with high PLQY. Credit: CHENG Pengfei All-inorganic zero-dimensional (0D) metal halides are widely applied in the fields of display and solid-state lighting…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[10601,55550],"class_list":["post-49635","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-materials-science","tag-method-to-develop-blue-emitting-zero-dimensional-all-inorganic-metal-halides"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/49635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=49635"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/49635\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=49635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=49635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=49635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}