{"title":"氢键相互作用的微调对有机主客体系统室温磷光的促进作用","authors":"Faxu Lin, Jinzheng Chen, Tian Qin, Lina Zhang, Yiling Miao, Qirui Zhang, Guodong Liang, Huahua Huang","doi":"10.1021/acs.jpclett.4c03707","DOIUrl":null,"url":null,"abstract":"Organic room-temperature phosphorescence (RTP) materials have demonstrated great potential applications in optoelectronics, anticounterfeiting, and biomedicine fields. Among them, the RTP properties of host–guest systems can be easily regulated by changing their component parameters, which has attracted widespread attention. However, the key factor of the hosts (crystalline or noncovalent interaction network) for boosting phosphorescence emission at room temperature was still unclear. Herein, a triphenyl phosphor in the estradiol system was heated to remove the crystal water and then cooled to turn it into a powder. This enabled the afterglow brightness to improve by more than 90-fold and the phosphorescent quantum yield by over 700-fold. Further studies have indicated that the hydrogen bonding interactions of estradiol’s −OH group were tuned during these processes, from bonding with crystal water to bonding with guests and then constructing a strong network with the guests. The triplet excitons thus were effectively stabilized, which, coupled with the suitable T<sub>1</sub> energy level of the host, could significantly enhance the phosphorescence in the amorphous estradiol system. This work demonstrates fine-tuning of the hydrogen bonding interactions inside the doped estradiol RTP system to boost its phosphorescence. It also substantiates that a noncovalent interaction network is more important than crystalline for efficient phosphorescence in a host–guest RTP system.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"31 1","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fine Tuning of Hydrogen Bonding Interaction on Boosting the Room-Temperature Phosphorescence in Organic Host–Guest System\",\"authors\":\"Faxu Lin, Jinzheng Chen, Tian Qin, Lina Zhang, Yiling Miao, Qirui Zhang, Guodong Liang, Huahua Huang\",\"doi\":\"10.1021/acs.jpclett.4c03707\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Organic room-temperature phosphorescence (RTP) materials have demonstrated great potential applications in optoelectronics, anticounterfeiting, and biomedicine fields. Among them, the RTP properties of host–guest systems can be easily regulated by changing their component parameters, which has attracted widespread attention. However, the key factor of the hosts (crystalline or noncovalent interaction network) for boosting phosphorescence emission at room temperature was still unclear. Herein, a triphenyl phosphor in the estradiol system was heated to remove the crystal water and then cooled to turn it into a powder. This enabled the afterglow brightness to improve by more than 90-fold and the phosphorescent quantum yield by over 700-fold. Further studies have indicated that the hydrogen bonding interactions of estradiol’s −OH group were tuned during these processes, from bonding with crystal water to bonding with guests and then constructing a strong network with the guests. The triplet excitons thus were effectively stabilized, which, coupled with the suitable T<sub>1</sub> energy level of the host, could significantly enhance the phosphorescence in the amorphous estradiol system. This work demonstrates fine-tuning of the hydrogen bonding interactions inside the doped estradiol RTP system to boost its phosphorescence. It also substantiates that a noncovalent interaction network is more important than crystalline for efficient phosphorescence in a host–guest RTP system.\",\"PeriodicalId\":62,\"journal\":{\"name\":\"The Journal of Physical Chemistry Letters\",\"volume\":\"31 1\",\"pages\":\"\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-02-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Physical Chemistry Letters\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.jpclett.4c03707\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry Letters","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.jpclett.4c03707","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Fine Tuning of Hydrogen Bonding Interaction on Boosting the Room-Temperature Phosphorescence in Organic Host–Guest System
Organic room-temperature phosphorescence (RTP) materials have demonstrated great potential applications in optoelectronics, anticounterfeiting, and biomedicine fields. Among them, the RTP properties of host–guest systems can be easily regulated by changing their component parameters, which has attracted widespread attention. However, the key factor of the hosts (crystalline or noncovalent interaction network) for boosting phosphorescence emission at room temperature was still unclear. Herein, a triphenyl phosphor in the estradiol system was heated to remove the crystal water and then cooled to turn it into a powder. This enabled the afterglow brightness to improve by more than 90-fold and the phosphorescent quantum yield by over 700-fold. Further studies have indicated that the hydrogen bonding interactions of estradiol’s −OH group were tuned during these processes, from bonding with crystal water to bonding with guests and then constructing a strong network with the guests. The triplet excitons thus were effectively stabilized, which, coupled with the suitable T1 energy level of the host, could significantly enhance the phosphorescence in the amorphous estradiol system. This work demonstrates fine-tuning of the hydrogen bonding interactions inside the doped estradiol RTP system to boost its phosphorescence. It also substantiates that a noncovalent interaction network is more important than crystalline for efficient phosphorescence in a host–guest RTP system.
期刊介绍:
The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.