Monika Salesh, Sumit Kumar Sharma, Sanika S. Padelkar, Jacek J. Jasieniak, Alexandr N. Simonov, Aftab Alam* and Aswani Yella*,
{"title":"可见光透明电子器件中杂价Sr2+掺杂纳米晶体促进白光发射","authors":"Monika Salesh, Sumit Kumar Sharma, Sanika S. Padelkar, Jacek J. Jasieniak, Alexandr N. Simonov, Aftab Alam* and Aswani Yella*, ","doi":"10.1021/acsmaterialslett.4c0246010.1021/acsmaterialslett.4c02460","DOIUrl":null,"url":null,"abstract":"<p >Electric lighting accounts for nearly 15% of the power consumption globally, and so it is important to develop low-cost lighting technologies. Here, we report a combined experimental and theoretical study of the optoelectronic properties of heterovalent, i.e., Sr<sup>2+</sup>-doped, Cs<sub>2</sub>AgInCl<sub>6</sub> nanocrystals. A significant enhancement in the photoluminescence quantum yield is observed with Sr-doping concentration up to ∼6.25%. Improved optoelectronic properties are shown to originate from a combined replacement of both In and Ag sites by the Sr atoms doped into the lattice. Further, we showcase a perovskite–perovskite composite (Cs<sub>2</sub>Sr<sub>2<i>x</i></sub>Ag<sub>1–<i>x</i></sub>In<sub>1–<i>x</i></sub>Cl<sub>6</sub>:(DAO)Sn<sub>2</sub>I<sub>6</sub>)) to produce pure white light without halide segregation and transparent to visible light. The obtained white light rendered a perfect white light CIE coordinate of (0.33, 0.34) along with a luminous efficacy of radiation of ∼229 Im/W and a color rendering index of 94, proving to be the best among the lead-free halide perovskite white light emitting diodes so far.</p>","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 4","pages":"1275–1283 1275–1283"},"PeriodicalIF":8.7000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Facilitating White Light Emission through Heterovalent Sr2+-Doped Nanocrystals for Visible Light Transparent Electronics\",\"authors\":\"Monika Salesh, Sumit Kumar Sharma, Sanika S. Padelkar, Jacek J. Jasieniak, Alexandr N. Simonov, Aftab Alam* and Aswani Yella*, \",\"doi\":\"10.1021/acsmaterialslett.4c0246010.1021/acsmaterialslett.4c02460\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Electric lighting accounts for nearly 15% of the power consumption globally, and so it is important to develop low-cost lighting technologies. Here, we report a combined experimental and theoretical study of the optoelectronic properties of heterovalent, i.e., Sr<sup>2+</sup>-doped, Cs<sub>2</sub>AgInCl<sub>6</sub> nanocrystals. A significant enhancement in the photoluminescence quantum yield is observed with Sr-doping concentration up to ∼6.25%. Improved optoelectronic properties are shown to originate from a combined replacement of both In and Ag sites by the Sr atoms doped into the lattice. Further, we showcase a perovskite–perovskite composite (Cs<sub>2</sub>Sr<sub>2<i>x</i></sub>Ag<sub>1–<i>x</i></sub>In<sub>1–<i>x</i></sub>Cl<sub>6</sub>:(DAO)Sn<sub>2</sub>I<sub>6</sub>)) to produce pure white light without halide segregation and transparent to visible light. The obtained white light rendered a perfect white light CIE coordinate of (0.33, 0.34) along with a luminous efficacy of radiation of ∼229 Im/W and a color rendering index of 94, proving to be the best among the lead-free halide perovskite white light emitting diodes so far.</p>\",\"PeriodicalId\":19,\"journal\":{\"name\":\"ACS Materials Letters\",\"volume\":\"7 4\",\"pages\":\"1275–1283 1275–1283\"},\"PeriodicalIF\":8.7000,\"publicationDate\":\"2025-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Materials Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c02460\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c02460","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Facilitating White Light Emission through Heterovalent Sr2+-Doped Nanocrystals for Visible Light Transparent Electronics
Electric lighting accounts for nearly 15% of the power consumption globally, and so it is important to develop low-cost lighting technologies. Here, we report a combined experimental and theoretical study of the optoelectronic properties of heterovalent, i.e., Sr2+-doped, Cs2AgInCl6 nanocrystals. A significant enhancement in the photoluminescence quantum yield is observed with Sr-doping concentration up to ∼6.25%. Improved optoelectronic properties are shown to originate from a combined replacement of both In and Ag sites by the Sr atoms doped into the lattice. Further, we showcase a perovskite–perovskite composite (Cs2Sr2xAg1–xIn1–xCl6:(DAO)Sn2I6)) to produce pure white light without halide segregation and transparent to visible light. The obtained white light rendered a perfect white light CIE coordinate of (0.33, 0.34) along with a luminous efficacy of radiation of ∼229 Im/W and a color rendering index of 94, proving to be the best among the lead-free halide perovskite white light emitting diodes so far.
期刊介绍：
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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