1
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Liang Y, Hu P, Zhang H, Yang Q, Wei H, Chen R, Yu J, Liu C, Wang Y, Luo S, Shi G, Chi Z, Xu B. Enabling Highly Robust Full-Color Ultralong Room-Temperature Phosphorescence and Stable White Organic Afterglow from Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2024; 63:e202318516. [PMID: 38241198 DOI: 10.1002/anie.202318516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 01/21/2024]
Abstract
In this work, full-color and stable white organic afterglow materials with outstanding water, organic solvents, and temperature resistances have been developed for the first time by embedding the selected polycyclic aromatic hydrocarbons into melamine-formaldehyde polymer via solution polymerization. The afterglow quantum yields and lifetimes of the resulting polymer films were up to 22.7 % and 4.83 s, respectively, under ambient conditions. For the coronene-doped sample, its afterglow color could be linearly tuned between yellow and blue by adjusting the temperature, and it could still emit an intense blue afterglow with a lifetime of 0.68 s at 440 K. Moreover, the films showed a bright and stable white afterglow at 370 K with a lifetime of 2.80 s and maintained an excellent afterglow performance after soaking in water and organic solvents for more than 150 days. In addition, the application potential of the polymer films in information encryption and anti-counterfeiting was also demonstrated.
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Affiliation(s)
- Yaohui Liang
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Pengtao Hu
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Huaqing Zhang
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Qingchen Yang
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Hengshan Wei
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Ruitai Chen
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Jiahai Yu
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Cong Liu
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Yuhai Wang
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Suilian Luo
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Guang Shi
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Zhenguo Chi
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Bingjia Xu
- School of Chemistry; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
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2
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Zhang X, Zhao X, Ye K, Zhao J. Detection of the Dark States in Thermally Activated Delayed Fluorescence (TADF) Process of Electron Donor-Acceptor Dyads: Insights from Optical Transient Absorption Spectroscopy. Chemistry 2023; 29:e202203737. [PMID: 36468907 DOI: 10.1002/chem.202203737] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 12/07/2022]
Abstract
The photophysical processes involved in the electron donor-acceptor thermally activated delayed fluorescence (TADF) emitters are complicated and controversial. The recent consensus is that at least three states are involved, i. e. the singlet charge transfer state (1 CT), the triplet localized excited state (3 LE) and the triplet CT state (3 CT). It is clear the very often used steady state and time-resolved luminescence spectroscopic methods are unable to present direct evidence for the dark states, i. e. the 3 LE and 3 CT states, as well as the interconversion of these states. Concerning this aspect, the femtosecond-nanosecond transient absorption spectroscopic methods are in particular interests. Both the emissive state and the dark state can be detected in these spectra, and interconversion of the states involved in TADF process can be also revealed. This review article focuses on the recent development of using the transient absorption spectra to study the photophysics of the TADF emitters.
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Affiliation(s)
- Xue Zhang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian, 116024, P. R. China
| | - Xiaoyu Zhao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian, 116024, P. R. China.,State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, P. R. China
| | - Kaiyue Ye
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian, 116024, P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian, 116024, P. R. China.,State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, P. R. China
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3
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Xia Y, Zhu C, Cao F, Shen Y, Ouyang M, Zhang Y. Host-Guest Doping in Flexible Organic Crystals for Room-Temperature Phosphorescence. Angew Chem Int Ed Engl 2023; 62:e202217547. [PMID: 36585393 DOI: 10.1002/anie.202217547] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/30/2022] [Accepted: 12/30/2022] [Indexed: 01/01/2023]
Abstract
Organic single crystals (OSCs) with excellent flexibility and unique optical properties are of great importance due to their broad applicability in optical/optoelectronic devices and sensors. Nevertheless, fabricating flexible OSCs with room-temperature phosphorescence (RTP) remains a great challenge. Herein, we propose a host-guest doping strategy to achieve both RTP and flexibility of OSCs. The single-stranded crystal is highly bendable upon external force application and can immediately return to its original straight shape after removal of the stress, impressively emitting bright deep-red phosphorescence. The theoretical and experimental results demonstrate that the bright RTP arises from Förster resonance energy transfer (FRET) from the triphenylene molecules to the dopants. This strategy is both conceptually and synthetically simple and offers a universal approach for the preparation of flexible OSCs with RTP.
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Affiliation(s)
- Yang Xia
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Yingbin Road NO.688, Jinhua, 321004, P. R. China.,College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road. NO. 18, Hangzhou, 310014, P. R. China
| | - Chenfei Zhu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road. NO. 18, Hangzhou, 310014, P. R. China
| | - Feng Cao
- Department of Engineering Technology, Huzhou College, Xueshi Road. NO. 1, Huzhou, 313000, P. R. China
| | - Yunxia Shen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Yingbin Road NO.688, Jinhua, 321004, P. R. China
| | - Mi Ouyang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road. NO. 18, Hangzhou, 310014, P. R. China
| | - Yujian Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Yingbin Road NO.688, Jinhua, 321004, P. R. China
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4
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Liang Y, Xu C, Zhang H, Wu S, Li JA, Yang Y, Mao Z, Luo S, Liu C, Shi G, Sun F, Chi Z, Xu B. Color-Tunable Dual-Mode Organic Afterglow from Classical Aggregation-Caused Quenching Compounds for White-Light-Manipulated Anti-Counterfeiting. Angew Chem Int Ed Engl 2023; 62:e202217616. [PMID: 36537720 DOI: 10.1002/anie.202217616] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Color-tunable dual-mode organic afterglow excited by ultraviolet (UV) and white light was achieved from classical aggregation-caused quenching compounds for the first time. Specifically, two luminescent systems, which could produce significant organic afterglow composed of persistent thermally activated delayed fluorescence and ultralong organic phosphorescence under ambient conditions, were constructed by doping fluorescein sodium and calcein sodium into aluminum sulfate. Their lifetimes surpassed 600 ms, and the dopant concentrations were as low as 5×10-6 wt %. Moreover, the persistent luminescence colors of the materials could be tuned from blue to green and then to yellow by simply varying the concentrations of guest compounds or the temperature in the range of 260-340 K. Inspired by these exciting results, the afterglow materials were used for UV- and white-light-manipulated anti-counterfeiting and preparation of elastomers with different colors of persistent luminescence.
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Affiliation(s)
- Yaohui Liang
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Chao Xu
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Huaqing Zhang
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Shiying Wu
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Jian-An Li
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Yifan Yang
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Zhu Mao
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Suilian Luo
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Cong Liu
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Guang Shi
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Fengqiang Sun
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Zhenguo Chi
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Bingjia Xu
- School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, China
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5
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Song Z, Shang Y, Lou Q, Zhu J, Hu J, Xu W, Li C, Chen X, Liu K, Shan CX, Bai X. A Molecular Engineering Strategy for Achieving Blue Phosphorescent Carbon Dots with Outstanding Efficiency above 50. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207970. [PMID: 36413559 DOI: 10.1002/adma.202207970] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Highly efficient emission has been a long-lasting pursuit for carbon dots (CDs) owing to their enormous potential in optoelectronic applications. Nevertheless, their room-temperature phosphorescence (RTP) performance still largely lags behind their outstanding fluorescence emission, especially in the blue spectral region. Herein, high-efficiency blue RTP CDs have been designed and constructed via a simple molecular engineering strategy, enabling CDs with an unprecedented phosphorescence quantum efficiency of to 50.17% and a long lifetime of 2.03 s. This treating route facilitates the formation of high-density (n, π*) configurations in the CD π-π conjugate system through the introduction of abundant functional groups, which can evoke a strong spin-orbit coupling and further promote the intersystem crossing from singlet to triplet excited states and radiative recombination from triplet excited states to ground state. With blue phosphorescent CDs as triplet donors, green, red, and white afterglow composites are successfully fabricated via effective phosphorescence Förster resonance energy transfer. Importantly, the color temperature of the white afterglow emission can be widely and facilely tuned from cool white to pure white and warm white. Moreover, advanced information encryption, light illumination, and afterglow/dynamic visual display have been demonstrated when using these multicolor-emitting CD-based afterglow systems.
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Affiliation(s)
- Zhijiang Song
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Yuan Shang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Qing Lou
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Jinyang Zhu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Junhua Hu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Longzihu New Energy Laboratory, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials and Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, P. R. China
| | - Changchang Li
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xu Chen
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Kaikai Liu
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Chong-Xin Shan
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Xue Bai
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
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6
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Jovaišaitė J, Kirschner S, Raišys S, Kreiza G, Baronas P, Juršėnas S, Wagner M. Diboraanthracene-Doped Polymer Systems for Colour-Tuneable Room-Temperature Organic Afterglow. Angew Chem Int Ed Engl 2023; 62:e202215071. [PMID: 36413097 PMCID: PMC10107698 DOI: 10.1002/anie.202215071] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/23/2022]
Abstract
Organic ultralong room temperature phosphorescence (RTP), or organic afterglow, is a unique phenomenon, gaining widespread attention due to its far-reaching application potential and fundamental interest. Here, two laterally expanded 9,10-dimesityl-dihydro-9,10-diboraanthracene (DBA) derivatives are demonstrated as excellent afterglow materials for red and blue-green light emission, which is traced back to persistent thermally activated delayed fluorescence and RTP. The lateral substitution of polycyclic DBA scaffold, together with weak transversal electron-donating mesityl groups, ensures the optimal molecular properties for (reverse) intersystem crossing and long-lived triplet states in a rigid poly(methyl methacrylate) matrix. The achieved afterglow emission quantum yields of up to 3 % and 15 %, afterglow lifetimes up to 0.8 s and 3.2 s and afterglow durations up to 5 s and 25 s (for red and blue-green emitters, respectively) are attributed to the properties of single molecules.
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Affiliation(s)
- Justina Jovaišaitė
- Institute of Photonics and Nanotechnology, Vilnius University, Saulėtekis av. 3, 10257, Vilnius, Lithuania
| | - Sven Kirschner
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, 60438, Frankfurt a. Main, Germany.,EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Steponas Raišys
- Institute of Photonics and Nanotechnology, Vilnius University, Saulėtekis av. 3, 10257, Vilnius, Lithuania
| | - Gediminas Kreiza
- Institute of Photonics and Nanotechnology, Vilnius University, Saulėtekis av. 3, 10257, Vilnius, Lithuania
| | - Paulius Baronas
- Institute of Photonics and Nanotechnology, Vilnius University, Saulėtekis av. 3, 10257, Vilnius, Lithuania
| | - Saulius Juršėnas
- Institute of Photonics and Nanotechnology, Vilnius University, Saulėtekis av. 3, 10257, Vilnius, Lithuania
| | - Matthias Wagner
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, 60438, Frankfurt a. Main, Germany
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7
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Li Y, Baryshnikov GV, Siddique F, Wei P, Wu H, Yi T. Vibration‐Regulated Multi‐State Long‐Lived Emission from Star‐Shaped Molecules. Angew Chem Int Ed Engl 2022; 61:e202213051. [DOI: 10.1002/anie.202213051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Yiran Li
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China
- State Key Laboratory of Molecular Engineering of Polymers Department of Chemistry Fudan University Shanghai 200433 China
| | - Glib V. Baryshnikov
- Laboratory of Organic Electronics Department of Science and Technology Linköping University 60174 Norrköping Sweden
| | - Farhan Siddique
- Laboratory of Organic Electronics Department of Science and Technology Linköping University 60174 Norrköping Sweden
| | - Peng Wei
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China
| | - Hongwei Wu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China
| | - Tao Yi
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China
- State Key Laboratory of Molecular Engineering of Polymers Department of Chemistry Fudan University Shanghai 200433 China
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8
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Chen J, Chen X, Cao L, Deng H, Chi Z, Liu B. Synergistic Generation and Accumulation of Triplet Excitons for Efficient Ultralong Organic Phosphorescence. Angew Chem Int Ed Engl 2022; 61:e202200343. [PMID: 35355396 DOI: 10.1002/anie.202200343] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Indexed: 11/10/2022]
Abstract
The traditional method to achieve ultralong organic phosphorescence (UOP) is to hybrid nπ* and ππ* configurations in appropriate proportion, which are contradictory to each other for improving efficiency and lifetime of phosphorescence. In this work, through replacing the electron-donating aromatic group with a methoxy group and combining intramolecular halogen bond to promote intersystem crossing and suppress non-radiative transition, an efficient UOP molecule (2Br-OSPh) has been synthesized with the longest lifetime and brightest UOP among its isomers. As compared to CzS2Br, which has a similar substituted position of bromine atom and a larger kisc (the rate of intersystem crossing), the smaller ΔETT* (the energy gap between monomeric phosphorescence and aggregated state phosphorescence) in 2Br-OSPh could accelerate the transition from T1 to T1 *. This research indicates that both generation and accumulation of triplet excitons play an important role in realizing efficient UOP materials.
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Affiliation(s)
- Junru Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
| | - Xiaojie Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Lei Cao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou, China
| | - Huangjun Deng
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Zhenguo Chi
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou, China
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9
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Chen J, Chen X, Cao L, Deng H, Chi Z, Liu B. Synergistic Generation and Accumulation of Triplet Excitons for Efficient Ultralong Organic Phosphorescence. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Junru Chen
- National University of Singapore Department of Chemical and Biomolecular Engineering SINGAPORE
| | - Xiaojie Chen
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Lei Cao
- National University of Singapore Chemical and Biomolecular Engineering SINGAPORE
| | - Huangjun Deng
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Zhenguo Chi
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Bin Liu
- National University of Singapore Department of Chemical and Biomolecular Engineering 4 Engineering Drive 4National University of Singapore 117585 Singapore SINGAPORE
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10
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Jin J, Xue P, Zhang L, Jiang H, Wang W, Yang Q, Tao Y, Zheng C, Chen R, Huang W. Modulating Tri-Mode Emission for Single-Component White Organic Afterglow. Angew Chem Int Ed Engl 2021; 60:24984-24990. [PMID: 34523785 DOI: 10.1002/anie.202109229] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/09/2021] [Indexed: 12/13/2022]
Abstract
Achieving single-component white organic afterglow remains a great challenge owing to the difficulties in simultaneously supporting long-lived emissions from varied excited states of a molecule for complementary afterglow. Here, an extraordinary tri-mode emission from the radiative decays of singlet (S1 ), triplet (T1 ), and stabilized triplet (T1 * ) excited states was proposed to afford white afterglow through modulating the singlet-triplet splitting energy (ΔEST ) and exciton trapping depth (ETD ). Low-lying T1 * for yellow afterglow was constructed by H-aggregation engineering with large ETD and trace isomer doping, while high-lying T1 and S1 for blue afterglow with thermally activated emission feature were realized by reducing ΔEST through donor-acceptor molecular design. Therefore, the single-component white afterglow with high efficiency of 14.1 % and a lifetime of 0.61 s was achieved by rationally regulating the afterglow intensity ratios of complementary emissions from S1 , T1 , and T1 *.
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Affiliation(s)
- Jibiao Jin
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Peiran Xue
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Longyan Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - He Jiang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Wuji Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Qingqing Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Ye Tao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Chao Zheng
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Runfeng Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Wei Huang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.,Frontiers Science Center for Flexible Electronics (FSCFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Northwestern Polytechnical University, Xi an, 710072, China
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11
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Jin J, Xue P, Zhang L, Jiang H, Wang W, Yang Q, Tao Y, Zheng C, Chen R, Huang W. Modulating Tri‐Mode Emission for Single‐Component White Organic Afterglow. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109229] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jibiao Jin
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Peiran Xue
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Longyan Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - He Jiang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Wuji Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Qingqing Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Ye Tao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Chao Zheng
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Runfeng Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
| | - Wei Huang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Northwestern Polytechnical University Xi an 710072 China
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