具有部分失真的铜碘化物混合簇实现高性能全可见光谱白光发光二极管。

IF 15.6 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Journal of the American Chemical Society Pub Date : 2024-12-11 Epub Date: 2024-11-25 DOI:10.1021/jacs.4c14545
Kuang-Hui Song, Min Peng, Jing-Jing Wang, Li-Zhe Feng, Yi-Chen Yin, Yong-Hui Song, Xue-Chen Ru, Ya-Ping Xie, Guozhen Zhang, Zhengtao Deng, Hong-Bin Yao
{"title":"具有部分失真的铜碘化物混合簇实现高性能全可见光谱白光发光二极管。","authors":"Kuang-Hui Song, Min Peng, Jing-Jing Wang, Li-Zhe Feng, Yi-Chen Yin, Yong-Hui Song, Xue-Chen Ru, Ya-Ping Xie, Guozhen Zhang, Zhengtao Deng, Hong-Bin Yao","doi":"10.1021/jacs.4c14545","DOIUrl":null,"url":null,"abstract":"<p><p>Phosphor-converted white-light-emitting diodes (pc-WLEDs) have become increasingly prevalent artificial light sources. Currently, multicomponent phosphors are commonly used for pc-WLEDs, but they often suffer from issues of undesirable reabsorption and unstable emission colors. The potential alternative for pc-WLEDs is a single-component white phosphor that covers the broad visible spectrum with desirable low thermal quenching and efficient luminescence, which is still scarce. To address this challenge, we design a unique single-component white phosphor based on Cu<sub>4</sub>I<sub>4</sub>(4-(<i>tert</i>-butyl)-2-(diphenylphosphaneyl)pyridine)<sub>2</sub> (Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub>) hybrid clusters, which exhibits ultrabroad dual emission from 400 to 800 nm and a high photoluminescence quantum yield of 97% under 320 nm light excitation. Based on time-resolved fluorescence spectroscopy and theoretical model analysis of our Cu<sub>4</sub>I<sub>4</sub> series clusters, we hypothesize that the dual emission comes from the coexistence of two triplet states caused by partial cluster distortion under light excitation. The Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub> cluster's high structural stability also endows consistent spectral performance and low thermal quenching up to 240 °C. Thus, the fabricated pc-WLED using Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub> white phosphor exhibits a maximum efficiency of 63.4 lm/W and maintains a high color rendering index of ∼88 during 1000 h of continuous operation. Our results highlight a new strategy of low-cost and high-performance copper-iodide cluster-based single-component white phosphors for high-quality pc-WLEDs.</p>","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":" ","pages":"34199-34208"},"PeriodicalIF":15.6000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Copper-Iodide Hybrid Clusters with Partial Distortion Enable High-Performance Full-Visible-Spectrum White-Light-Emitting Diodes.\",\"authors\":\"Kuang-Hui Song, Min Peng, Jing-Jing Wang, Li-Zhe Feng, Yi-Chen Yin, Yong-Hui Song, Xue-Chen Ru, Ya-Ping Xie, Guozhen Zhang, Zhengtao Deng, Hong-Bin Yao\",\"doi\":\"10.1021/jacs.4c14545\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Phosphor-converted white-light-emitting diodes (pc-WLEDs) have become increasingly prevalent artificial light sources. Currently, multicomponent phosphors are commonly used for pc-WLEDs, but they often suffer from issues of undesirable reabsorption and unstable emission colors. The potential alternative for pc-WLEDs is a single-component white phosphor that covers the broad visible spectrum with desirable low thermal quenching and efficient luminescence, which is still scarce. To address this challenge, we design a unique single-component white phosphor based on Cu<sub>4</sub>I<sub>4</sub>(4-(<i>tert</i>-butyl)-2-(diphenylphosphaneyl)pyridine)<sub>2</sub> (Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub>) hybrid clusters, which exhibits ultrabroad dual emission from 400 to 800 nm and a high photoluminescence quantum yield of 97% under 320 nm light excitation. Based on time-resolved fluorescence spectroscopy and theoretical model analysis of our Cu<sub>4</sub>I<sub>4</sub> series clusters, we hypothesize that the dual emission comes from the coexistence of two triplet states caused by partial cluster distortion under light excitation. The Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub> cluster's high structural stability also endows consistent spectral performance and low thermal quenching up to 240 °C. Thus, the fabricated pc-WLED using Cu<sub>4</sub>I<sub>4</sub>(NP-<sup><i>t</i></sup>Bu)<sub>2</sub> white phosphor exhibits a maximum efficiency of 63.4 lm/W and maintains a high color rendering index of ∼88 during 1000 h of continuous operation. Our results highlight a new strategy of low-cost and high-performance copper-iodide cluster-based single-component white phosphors for high-quality pc-WLEDs.</p>\",\"PeriodicalId\":49,\"journal\":{\"name\":\"Journal of the American Chemical Society\",\"volume\":\" \",\"pages\":\"34199-34208\"},\"PeriodicalIF\":15.6000,\"publicationDate\":\"2024-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the American Chemical Society\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/jacs.4c14545\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/11/25 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/jacs.4c14545","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/11/25 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

荧光粉转换白光发光二极管(pc-WLED)已成为越来越普遍的人造光源。目前,pc-WLED 通常使用多组分荧光粉,但这些荧光粉往往存在不理想的再吸收和发射颜色不稳定的问题。单组分白光荧光粉是 pc-WLED 的潜在替代品,它能覆盖宽广的可见光谱,具有理想的低热淬灭和高效发光特性,但这种荧光粉仍然非常稀缺。为了应对这一挑战,我们设计了一种基于 Cu4I4(4-(叔丁基)-2-(二苯基膦酰基)吡啶)2(Cu4I4(NP-tBu)2)杂化团簇的独特的单组分白光荧光粉,该荧光粉在 400 至 800 纳米波长范围内具有超宽的双发射光谱,在 320 纳米波长的光激发下,光致发光量子产率高达 97%。根据时间分辨荧光光谱和对 Cu4I4 系列团簇的理论模型分析,我们推测双发射来自于在光激发下团簇的部分畸变导致的两个三重态共存。Cu4I4(NP-tBu)2团簇的高结构稳定性也赋予了其稳定的光谱性能和高达240 °C的低热淬。因此,使用 Cu4I4(NP-tBu)2 白色荧光粉制造的 pc-WLED 的最高效率可达 63.4 lm/W,并且在连续工作 1000 小时后仍能保持高达 88 的显色指数。我们的研究结果凸显了一种低成本、高性能的基于碘化铜簇的单组分白光荧光粉的新策略,适用于高质量的 pc-WLEDs 。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Copper-Iodide Hybrid Clusters with Partial Distortion Enable High-Performance Full-Visible-Spectrum White-Light-Emitting Diodes.

Copper-Iodide Hybrid Clusters with Partial Distortion Enable High-Performance Full-Visible-Spectrum White-Light-Emitting Diodes.

Phosphor-converted white-light-emitting diodes (pc-WLEDs) have become increasingly prevalent artificial light sources. Currently, multicomponent phosphors are commonly used for pc-WLEDs, but they often suffer from issues of undesirable reabsorption and unstable emission colors. The potential alternative for pc-WLEDs is a single-component white phosphor that covers the broad visible spectrum with desirable low thermal quenching and efficient luminescence, which is still scarce. To address this challenge, we design a unique single-component white phosphor based on Cu4I4(4-(tert-butyl)-2-(diphenylphosphaneyl)pyridine)2 (Cu4I4(NP-tBu)2) hybrid clusters, which exhibits ultrabroad dual emission from 400 to 800 nm and a high photoluminescence quantum yield of 97% under 320 nm light excitation. Based on time-resolved fluorescence spectroscopy and theoretical model analysis of our Cu4I4 series clusters, we hypothesize that the dual emission comes from the coexistence of two triplet states caused by partial cluster distortion under light excitation. The Cu4I4(NP-tBu)2 cluster's high structural stability also endows consistent spectral performance and low thermal quenching up to 240 °C. Thus, the fabricated pc-WLED using Cu4I4(NP-tBu)2 white phosphor exhibits a maximum efficiency of 63.4 lm/W and maintains a high color rendering index of ∼88 during 1000 h of continuous operation. Our results highlight a new strategy of low-cost and high-performance copper-iodide cluster-based single-component white phosphors for high-quality pc-WLEDs.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
24.40
自引率
6.00%
发文量
2398
审稿时长
1.6 months
期刊介绍: The flagship journal of the American Chemical Society, known as the Journal of the American Chemical Society (JACS), has been a prestigious publication since its establishment in 1879. It holds a preeminent position in the field of chemistry and related interdisciplinary sciences. JACS is committed to disseminating cutting-edge research papers, covering a wide range of topics, and encompasses approximately 19,000 pages of Articles, Communications, and Perspectives annually. With a weekly publication frequency, JACS plays a vital role in advancing the field of chemistry by providing essential research.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信