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A functional unit combination strategy for enhancing red room-temperature phosphorescence

Red room-temperature phosphorescence (RTP) materials based on non-metallic organic compounds are less reported compared to the commonly found green RTP materials. Here, we propose a novel approach to obtain red RTP materials by integrating and combining two functional units, resembling a jigsaw puzz...

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Autores principales: Zhao, Shuaiqiang, Yang, Zhiqiang, Zhang, Xiangyu, Liu, Haichao, Lv, Yingbo, Wang, Shiyin, Yang, Zhongzhao, Zhang, Shi-Tong, Yang, Bing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10510757/
https://www.ncbi.nlm.nih.gov/pubmed/37736641
http://dx.doi.org/10.1039/d3sc03668e
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author Zhao, Shuaiqiang
Yang, Zhiqiang
Zhang, Xiangyu
Liu, Haichao
Lv, Yingbo
Wang, Shiyin
Yang, Zhongzhao
Zhang, Shi-Tong
Yang, Bing
author_facet Zhao, Shuaiqiang
Yang, Zhiqiang
Zhang, Xiangyu
Liu, Haichao
Lv, Yingbo
Wang, Shiyin
Yang, Zhongzhao
Zhang, Shi-Tong
Yang, Bing
author_sort Zhao, Shuaiqiang
collection PubMed
description Red room-temperature phosphorescence (RTP) materials based on non-metallic organic compounds are less reported compared to the commonly found green RTP materials. Here, we propose a novel approach to obtain red RTP materials by integrating and combining two functional units, resembling a jigsaw puzzle. In this approach, benzo[c][2,1,3]thiadiazole (BZT) serves as the red RTP unit, while a folding unit containing sulphur/oxygen is responsible for enhancing spin–orbit coupling (SOC) to accelerate the intersystem crossing (ISC) process. Three new molecules (SS-BZT, SO-BZT, and OO-BZT) were designed and synthesized, among which SS-BZT and SO-BZT with folded geometries demonstrate enhanced red RTP in their monodisperse films compared to the parent BZT. Meanwhile, the SS-BZT film shows a dual emission consisting of blue fluorescence and red RTP, with a significant spectral separation of approximately 150 nm, which makes the SS-BZT film highly suitable for applications in optical oxygen sensing and ratiometric detection. Within the oxygen concentration range of 0–1.31%, the SS-BZT film demonstrates a quenching constant of 2.66 kPa(−1) and a quenching efficiency of 94.24%, indicating that this probe has the potential to accurately detect oxygen in a hypoxic environment.
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spelling pubmed-105107572023-09-21 A functional unit combination strategy for enhancing red room-temperature phosphorescence Zhao, Shuaiqiang Yang, Zhiqiang Zhang, Xiangyu Liu, Haichao Lv, Yingbo Wang, Shiyin Yang, Zhongzhao Zhang, Shi-Tong Yang, Bing Chem Sci Chemistry Red room-temperature phosphorescence (RTP) materials based on non-metallic organic compounds are less reported compared to the commonly found green RTP materials. Here, we propose a novel approach to obtain red RTP materials by integrating and combining two functional units, resembling a jigsaw puzzle. In this approach, benzo[c][2,1,3]thiadiazole (BZT) serves as the red RTP unit, while a folding unit containing sulphur/oxygen is responsible for enhancing spin–orbit coupling (SOC) to accelerate the intersystem crossing (ISC) process. Three new molecules (SS-BZT, SO-BZT, and OO-BZT) were designed and synthesized, among which SS-BZT and SO-BZT with folded geometries demonstrate enhanced red RTP in their monodisperse films compared to the parent BZT. Meanwhile, the SS-BZT film shows a dual emission consisting of blue fluorescence and red RTP, with a significant spectral separation of approximately 150 nm, which makes the SS-BZT film highly suitable for applications in optical oxygen sensing and ratiometric detection. Within the oxygen concentration range of 0–1.31%, the SS-BZT film demonstrates a quenching constant of 2.66 kPa(−1) and a quenching efficiency of 94.24%, indicating that this probe has the potential to accurately detect oxygen in a hypoxic environment. The Royal Society of Chemistry 2023-08-22 /pmc/articles/PMC10510757/ /pubmed/37736641 http://dx.doi.org/10.1039/d3sc03668e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhao, Shuaiqiang
Yang, Zhiqiang
Zhang, Xiangyu
Liu, Haichao
Lv, Yingbo
Wang, Shiyin
Yang, Zhongzhao
Zhang, Shi-Tong
Yang, Bing
A functional unit combination strategy for enhancing red room-temperature phosphorescence
title A functional unit combination strategy for enhancing red room-temperature phosphorescence
title_full A functional unit combination strategy for enhancing red room-temperature phosphorescence
title_fullStr A functional unit combination strategy for enhancing red room-temperature phosphorescence
title_full_unstemmed A functional unit combination strategy for enhancing red room-temperature phosphorescence
title_short A functional unit combination strategy for enhancing red room-temperature phosphorescence
title_sort functional unit combination strategy for enhancing red room-temperature phosphorescence
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10510757/
https://www.ncbi.nlm.nih.gov/pubmed/37736641
http://dx.doi.org/10.1039/d3sc03668e
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