1
|
Zhao Z, Liu X, Dai W, Liu S, Liu M, Wu H, Huang X, Lei Y. Enhancing the Room-Temperature Phosphorescence Performance by Salinization of Guests. J Phys Chem Lett 2024:8093-8100. [PMID: 39087745 DOI: 10.1021/acs.jpclett.4c01786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Although the host-guest doped strategy effectively improves the phosphorescence performance of materials and greatly enriches the variety of materials, most of the guests are organic molecules with weak luminescence ability, which leads to the need for further improvement in the phosphorescence performance of doped materials. Herein, by salinization of organic molecules, the luminescence performance of the guests was effectively improved, thereby significantly enhancing the phosphorescence performance of the doped system. A compound 4-(naphthalen-2-yl)quinoline (QL) containing nitrogen atom was synthesized as initial guest, then QL was salted to obtain six organic salt guests containing anions BF4-, PF6-, CF3SO3-, N(CF3SO2)2-, ClO4-, and C4F9SO3-, respectively. Two doped systems were constructed using benzophenone and poly(methyl methacrylate) as the hosts. The phosphorescence quantum yield and phosphorescence lifetime of doped materials with QL as guest were only 4.1%/5.2% and 131 ms/141 ms, while those of doped materials with salinized molecules as guests were improved to 32-39% and 534-625 ms, respectively. The single-crystal structures and theoretical calculations indicated that anions can not only enhance the intermolecular interaction of guests but also increase the spin-orbit coupling constant. This work provides an effective strategy for improving the phosphorescence performance of doped materials.
Collapse
Affiliation(s)
- Zhenwei Zhao
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xiaoqing Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Wenbo Dai
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Key Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou 325035, P. R. China
| | - Shengdi Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Miaochang Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Huayue Wu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xiaobo Huang
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yunxiang Lei
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Key Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou 325035, P. R. China
| |
Collapse
|
2
|
Chen X, Zhu R, Zhang B, Zhang X, Cheng A, Liu H, Gao R, Zhang X, Chen B, Ye S, Jiang J, Zhang G. Rapid room-temperature phosphorescence chiral recognition of natural amino acids. Nat Commun 2024; 15:3314. [PMID: 38632229 PMCID: PMC11024135 DOI: 10.1038/s41467-024-47648-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
Chiral recognition of amino acids is very important in both chemical and life sciences. Although chiral recognition with luminescence has many advantages such as being inexpensive, it is usually slow and lacks generality as the recognition module relies on structural complementarity. Here, we show that one single molecular-solid sensor, L-phenylalanine derived benzamide, can manifest the structural difference between the natural, left-handed amino acid and its right-handed counterpart via the difference of room-temperature phosphorescence (RTP) irrespective of the specific chemical structure. To realize rapid and reliable sensing, the doped samples are obtained as nanocrystals from evaporation of the tetrahydrofuran solutions, which allows for efficient triplet-triplet energy transfer to the chiral analytes generated in situ from chiral amino acids. The results show that L-analytes induce strong RTP, whereas the unnatural D-analytes produce barely any afterglow. The method expands the scope of luminescence chiral sensing by lessening the requirement for specific molecular structures.
Collapse
Affiliation(s)
- Xiaoyu Chen
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Renlong Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Baicheng Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Xiaolong Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Aoyuan Cheng
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Hongping Liu
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Ruiying Gao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xuepeng Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Biao Chen
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China.
| | - Shuji Ye
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Jun Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China
| | - Guoqing Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, Hefei, China.
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui, 230094, China.
| |
Collapse
|
3
|
Deng Z, Zhang J, Zhou J, Shen W, Zuo Y, Wang J, Yang S, Liu J, Chen Y, Chen CC, Jia G, Alam P, Lam JWY, Tang BZ. Dynamic Transition between Monomer and Excimer Phosphorescence in Organic Near-Infrared Phosphorescent Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311384. [PMID: 38178607 DOI: 10.1002/adma.202311384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/25/2023] [Indexed: 01/06/2024]
Abstract
Achieving efficient near-infrared room-temperature phosphorescence of purely organic phosphors remains scarce and challenging due to strong nonradiative decay. Additionally, the investigation of triplet excimer phosphorescence is rarely reported, despite the fact that excimer, a special emitter commonly formed in crystals with strong π-π interactions, can efficiently change the fluorescent properties of compounds. Herein, a series of dithienopyrrole derivatives with low triplet energy levels and stable triplet states, exhibiting persistent near-infrared room-temperature phosphorescence, is developed. Via the modification of halogen atoms, the crystals display tunable emissions of monomers from 645 to 702 nm, with a maximum lifetime of 3.68 ms under ambient conditions. Notably, excimer phosphorescence can be switched on at low temperatures, enabled by noncovalent interactions rigidifying the matrix and stabilizing triplet excimer. Unprecedentedly, the dynamic transition process is captured between the monomer and excimer phosphorescence with temperature variations, revealing that the unstable triplet excimers in crystals with a tendency to dissociate can result in the effective quench of room-temperature phosphorescence. Excited state transitions across varying environments are elucidated, interpreting the structural dynamics of the triplet excimer and demonstrating strategies for devising novel near-infrared phosphors.
Collapse
Affiliation(s)
- Zihao Deng
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jianyu Zhang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jiaming Zhou
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Wei Shen
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yunfei Zuo
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jin Wang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shengyi Yang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Junkai Liu
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yuyang Chen
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Chun-Chao Chen
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Guocheng Jia
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Parvej Alam
- Clinical Translational Research Center of Aggregation-Induced Emission, School of Medicine, The Second Affiliated Hospital, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen, 518172, China
| | - Jacky W Y Lam
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- School of Science and Engineering, Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong, 518172, China
| |
Collapse
|
4
|
Chang B, Chen J, Bao J, Sun T, Cheng Z. Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window. Chem Rev 2023; 123:13966-14037. [PMID: 37991875 DOI: 10.1021/acs.chemrev.3c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Phosphorescence, characterized by luminescent lifetimes significantly longer than that of biological autofluorescence under ambient environment, is of great value for biomedical applications. Academic evidence of fluorescence imaging indicates that virtually all imaging metrics (sensitivity, resolution, and penetration depths) are improved when progressing into longer wavelength regions, especially the recently reported second near-infrared (NIR-II, 1000-1700 nm) window. Although the emission wavelength of probes does matter, it is not clear whether the guideline of "the longer the wavelength, the better the imaging effect" is still suitable for developing phosphorescent probes. For tissue-specific bioimaging, long-lived probes, even if they emit visible phosphorescence, enable accurate visualization of large deep tissues. For studies dealing with bioimaging of tiny biological architectures or dynamic physiopathological activities, the prerequisite is rigorous planning of long-wavelength phosphorescence, being aware of the cooperative contribution of long wavelengths and long lifetimes for improving the spatiotemporal resolution, penetration depth, and sensitivity of bioimaging. In this Review, emerging molecular engineering methods of room-temperature phosphorescence are discussed through the lens of photophysical mechanisms. We highlight the roles of phosphorescence with emission from visible to NIR-II windows toward bioapplications. To appreciate such advances, challenges and prospects in rapidly growing studies of room-temperature phosphorescence are described.
Collapse
Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jie Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jiasheng Bao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264000, China
| |
Collapse
|
5
|
Qiu X, Yang X, Guo Q, Liu J, Zhang X. Ln-HOF Nanofiber Organogels with Time-Resolved Luminescence for Programmable and Reliable Encryption. NANO LETTERS 2023; 23:11916-11924. [PMID: 38055678 DOI: 10.1021/acs.nanolett.3c04069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Developing tunable luminescent materials for high throughput information storage is highly desired following the explosive growth of global data. Although considerable success has been achieved, achieving programmable information encryption remains challenging due to current signal crosstalk problems. Here, we developed long-lived room-temperature phosphorescent organogels enabled by lanthanum-coordinated hydrogen-bonded organic framework nanofibers for time-resolved information programming. Via modulating coassembled lanthanum concentration and Förster resonance energy transfer efficiency, the lifetimes are prolonged and facilely manipulated (20-644 ms), realizing encoding space enlargement and multichannel data outputs. The aggregated strong interfacial supramolecular bonding endows organogels with excellent mechanical toughness (36.16 MJ m-2) and self-healing properties (95.7%), synergistically achieving photostability (97.6% lifetime retention in 10000 fatigue cycles) via suppressing nonradiative decays. This work presents a lifetime-gated information programmable strategy via lanthanum-coordination regulation that promisingly breaks through limitations of current responsive luminescent materials, opening unprecedented avenues for high-level information encryption and protection.
Collapse
Affiliation(s)
- Xiaoyan Qiu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Xin Yang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Quanquan Guo
- Max Planck Institute of Microstructure Physics, Halle (Saale) 06120, Germany
| | - Jize Liu
- School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| |
Collapse
|
6
|
Zhang ZY, Deng CY, Shen CC, Xu RY, Wang XZ, Wang YH, Ding B, Li B, Li J, Li C. Phosphorescence enhancement of pyridinium macrocycles by poly(vinylalcohol). Chem Commun (Camb) 2023; 59:11248-11251. [PMID: 37661728 DOI: 10.1039/d3cc03225f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
A phosphorescence enhancement of pyridinium macrocycle/monomer phosphors is realized with up to 14.7-fold prolonging of the phosphorescence lifetimes and visible afterglow by doping into a poly(vinylalcohol) (PVA) matrix. The abundant hydrogen-bonding interactions and electrostatic interactions between the phosphors and the PVA suppressed the nonradiative decay processes, slowed down the radiative decay and nonradiative decay of triplet states, and therefore promoted the long-lived RTP.
Collapse
Affiliation(s)
- Zhi-Yuan Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Chun-Yun Deng
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Chen-Chen Shen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Rong-Yao Xu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Xi-Zhen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Yan-Hao Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Bo Ding
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Bin Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Jian Li
- School of Chemistry and Chemical Engineering, Henan Normal University, P. R. China
| | - Chunju Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
| |
Collapse
|
7
|
Guo D, Wang Y, Chen J, Cao Y, Miao Y, Huang H, Chi Z, Yang Z. Intrinsic persistent room temperature phosphorescence derived from 1H-benzo[f]indole itself as a guest. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
8
|
Cheng A, Jiang Y, Su H, Zhang B, Jiang J, Wang T, Luo Y, Zhang G. Origin of Red‐Shifted Phosphorescence from Triphenylamines: Triplet Excimer or Impurity? Angew Chem Int Ed Engl 2022; 61:e202206366. [DOI: 10.1002/anie.202206366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Indexed: 01/08/2023]
Affiliation(s)
- Aoyuan Cheng
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Yifan Jiang
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Hao Su
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Baicheng Zhang
- Hefei National Laboratory University of Sciencen and Technology of China Hefei 230088 China
| | - Jun Jiang
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
- Hefei National Laboratory University of Sciencen and Technology of China Hefei 230088 China
| | - Tao Wang
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Yi Luo
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
- Hefei National Laboratory University of Sciencen and Technology of China Hefei 230088 China
| | - Guoqing Zhang
- Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
- Hefei National Laboratory University of Sciencen and Technology of China Hefei 230088 China
| |
Collapse
|
9
|
Zhao J, Yan G, Wang W, Shao S, Yuan B, Li YJ, Zhang X, Huang CZ, Gao PF. Molecular Thermal Motion Modulated Room-Temperature Phosphorescence for Multilevel Encryption. Research (Wash D C) 2022; 2022:9782713. [PMID: 35966757 PMCID: PMC9351586 DOI: 10.34133/2022/9782713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/29/2022] [Indexed: 11/06/2022] Open
Abstract
The stimulus-responsive room-temperature phosphorescence (RTP) materials have become an increasingly significant topic in the fields of bioimaging, sensing, and anticounterfeiting. However, this kind of materials is scarce to date, especially for the ones with delicate stimulus-responsive behavior. Herein, a universal strategy for multilevel thermal erasure of RTP via chromatographic separation of host-guest doping RTP systems is proposed. The tunable host-guest systems, matrix materials, heating temperature, and time are demonstrated to allow precise six-level data encryption, QR code encryption, and thermochromic phosphorescence encryption. Mechanistic study reveals that the thermal-responsive property might be attributed to molecular thermal motion and the separation effect of the silica gel, which provides expanded applications of host-guest RTP materials such as cold chain break detection. This work offers a simple yet universal way to construct advanced responsive RTP materials.
Collapse
Affiliation(s)
- Jiaqiang Zhao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Guojuan Yan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Wei Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Shishi Shao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing 408100, China
| | - Yan Jie Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xuepeng Zhang
- Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Rd, Hefei, Anhui 230026, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Peng Fei Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| |
Collapse
|
10
|
Cheng A, Jiang Y, Su H, Zhang B, Jiang J, Wang T, Luo Y, Zhang G. Origin of Red‐Shifted Phosphorescence from Triphenylamines: Triplet Excimer or Impurity? Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aoyuan Cheng
- University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yifan Jiang
- University of Sciencen and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Hao Su
- University of Science and Technology of China University of Science and Technology of China CHINA
| | - Baicheng Zhang
- University of Science and Technology of China Hefei National Laboratory CHINA
| | - Jun Jiang
- University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Tao Wang
- University of Scicence and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yi Luo
- University of Sciencen and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Guoqing Zhang
- University of Science and Technology of China Polymer Science and Engineering CHINA
| |
Collapse
|
11
|
Gao Y, Liao Q, Li M, Han M, Huang A, Dang Q, Li Q, Li Z. Expounding the Relationship between Molecular Conformation and Room-Temperature Phosphorescence Property by Deviation Angle. J Phys Chem Lett 2022; 13:3251-3260. [PMID: 35388692 DOI: 10.1021/acs.jpclett.2c00597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Room-temperature phosphorescence (RTP) emitters with ultralong lifetimes are attracting more and more attention for their wide applications. However, it is still a big challenge to achieve persistent organic afterglow because of the undefined relationship between molecular structures and RTP effect. Herein, diphenylamine (DPA) as a commonly used building block is selected as the molecular skeleton. Through incorporation of various alkyl moieties by ortho-substitution in different numbers and positions, RTP lifetimes can increase from 129 to 661 ms with the subtle adjustment of molecular conformations. It is summarized that the deviation angle (θ) of phenyl units in the DPA skeleton from the ideal p-π conjugated plane can act as the key parameter determining RTP lifetime, and the larger the θ values, the longer the RTP lifetimes. Furthermore, this result has been successfully applied as the universal principle to explain the RTP properties of various organic luminogens with DPA blocks and similar structures.
Collapse
Affiliation(s)
- Yuan Gao
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Qiuyan Liao
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Menghan Li
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Mengmeng Han
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Arui Huang
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Qianxi Dang
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
- Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, P.R. China
| |
Collapse
|