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Song J, Ma L, Sun S, Tian H, Ma X. Reversible Multilevel Stimuli-Responsiveness and Multicolor Room-Temperature Phosphorescence Emission Based on a Single-Component System. Angew Chem Int Ed Engl 2022; 61:e202206157. [PMID: 35576103 DOI: 10.1002/anie.202206157] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Indexed: 12/23/2022]
Abstract
There are limited reports about the transformation of pure organic room-temperature phosphorescence (RTP) materials with multilevel stimuli-responsiveness at different RTP emission wavelengths under external stimuli. It is difficult to ensure efficient intersystem crossing (ISC) in different states of a single-component system. This research reports the conversion of the organic single-component small molecule 1,2-bis(4-alkoxyphenyl)ethane-1,2-dione (N-BOX) with multilevel stimuli-responsiveness between high-efficiency blue and yellow RTP by grinding or thermal annealing N-BOX crystals. The RTP emission of N-BOX in the crystalline state was easy to adjust by external stimuli (grinding or thermal annealing) due to its non-compact packing, which led to a phase transition and generated unique multilevel stimuli-responsiveness. In particular, the RTP quantum yield of 7-BOX with multilevel stimuli-responsiveness reached 68.4 %, which provides an opportunity for regulation of smart optical materials based on pure organic RTP.
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Affiliation(s)
- Jinming Song
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre, Frontiers Science for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China
| | - Liangwei Ma
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre, Frontiers Science for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China
| | - Siyu Sun
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre, Frontiers Science for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China
| | - He Tian
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre, Frontiers Science for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China
| | - Xiang Ma
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre, Frontiers Science for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China
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Song J, Ma L, Sun S, Tian H, Ma X. Reversible Multilevel Stimuli‐Responsiveness and Multicolor Room‐Temperature Phosphorescence Emission Based on a Single‐Component System. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jinming Song
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China
| | - Liangwei Ma
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China
| | - Siyu Sun
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China
| | - He Tian
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China
| | - Xiang Ma
- Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China
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Cui M, Li M, Wang J, Chen R, Xu Z, Wang J, Han J, Hu G, Sun R, Jiang X, Song B, He Y. Hydrothermal Synthesis of Zinc‐Doped Silica Nanospheres Simultaneously Featuring Stable Fluorescence and Long‐Lived Room‐Temperature Phosphorescence. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103200] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mingyue Cui
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Manjing Li
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Jinhua Wang
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Runzhi Chen
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Zhaojian Xu
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Jingyang Wang
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Junfei Han
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Guyue Hu
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Rong Sun
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Xin Jiang
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Bin Song
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
| | - Yao He
- Laboratory of Nanoscale Biochemical Analysis Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Jiangsu Suzhou 215123 China
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Cui M, Li M, Wang J, Chen R, Xu Z, Wang J, Han J, Hu G, Sun R, Jiang X, Song B, He Y. Hydrothermal Synthesis of Zinc-Doped Silica Nanospheres Simultaneously Featuring Stable Fluorescence and Long-Lived Room-Temperature Phosphorescence. Angew Chem Int Ed Engl 2021; 60:15490-15496. [PMID: 33904244 DOI: 10.1002/anie.202103200] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/09/2021] [Indexed: 01/28/2023]
Abstract
Fluorescence and phosphorescence are known as two kinds of fundamental optical signals, which have been used for myriad applications. To date, simultaneous activation of stable fluorescence and long-lived room-temperature phosphorescence (RTP) emission in the aqueous phase remains a big challenge. We prepare zinc-doped silica nanospheres (Zn@SiNSs) with fluorescence and RTP properties using a facile hydrothermal synthetic strategy. For the as-prepared Zn@SiNSs, the recombination of electrons and holes in defects and defect-stabilized excitons derived from oxygen vacancy/C=N bonds lead to the production of stable fluorescence and long-lived RTP (emission lasting for ≈9 s, quantum yield (QY): ≈33.6 %, RTP lifetime: ≈236 ms). The internal Si-O bonded networks and hydrophilic surface in Zn@SiNSs can reduce nonradiative decay to form self-protective RTP, and also provide high water solubility, excellent pH- and photostability.
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Affiliation(s)
- Mingyue Cui
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Manjing Li
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Jinhua Wang
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Runzhi Chen
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Zhaojian Xu
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Jingyang Wang
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Junfei Han
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Guyue Hu
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Rong Sun
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Xin Jiang
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Bin Song
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
| | - Yao He
- Laboratory of Nanoscale Biochemical Analysis, Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Jiangsu, Suzhou, 215123, China
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Nie J, Tao D, Huang X, Lu G, Feng C. Uniform Nanowires Containing a Heterogeneousπ-Conjugated Core of Controlled Length, Composition and Morphology. Chemistry 2021; 27:8479-8483. [PMID: 33834551 DOI: 10.1002/chem.202100940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Indexed: 01/02/2023]
Abstract
In this work, it is demonstrated for the first time that heterojunction nanowires, consisting of a gradient and segmented-like heterogeneous π-conjugated core with controllable length, composition and morphology, can be generated by co-self-seeding of oligo(p-phenylene vinylene) (OPV)- and oligo(p-phenylene ethynylene) (OPE)-containing block copolymers in spite of different chain lengths and molecular conformation for OPE and OPV. More importantly, based on the understanding of the formation of heterogeneous core by the co-self-seeding approach, a "heating/cooling" seeded growth route was developed, by which linear and branched heterojunction nanowires containing a segmented heterogeneous π-conjugated core of controlled length, composition and morphology can be obtained. This work provides a versatile platform to generate heterojunction nanowires with excellent controllability in length, composition, and morphology.
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Affiliation(s)
- Jiucheng Nie
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, P. R. China.,School of Physical Science & Technology, ShanghaiTech University, 100 Haike Road, 201210, Shanghai, P. R. China
| | - Daliao Tao
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, P. R. China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, P. R. China.,School of Physical Science & Technology, ShanghaiTech University, 100 Haike Road, 201210, Shanghai, P. R. China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, P. R. China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, P. R. China
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Li W, Huang Q, Yang Z, Zhang X, Ma D, Zhao J, Xu C, Mao Z, Zhang Y, Chi Z. Activating Versatile Mechanoluminescence in Organic Host–Guest Crystals by Controlling Exciton Transfer. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Wenlang Li
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Qiuyi Huang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Zhan Yang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Xiaoyue Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, Center for Physical Mechanics and Biophysics School of Physics Sun Yat-sen University Guangzhou 510275 China
| | - Dongyu Ma
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Juan Zhao
- School of Materials Science and Engineering Sun Yat-sen University Guangzhou 510275 China
| | - Chao Xu
- Key Laboratory of Theoretical Chemistry of Environment Ministry of Education School of Chemistry South China Normal University Guangzhou 510006 China
| | - Zhu Mao
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Yi Zhang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Zhenguo Chi
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
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Li W, Huang Q, Yang Z, Zhang X, Ma D, Zhao J, Xu C, Mao Z, Zhang Y, Chi Z. Activating Versatile Mechanoluminescence in Organic Host–Guest Crystals by Controlling Exciton Transfer. Angew Chem Int Ed Engl 2020; 59:22645-22651. [DOI: 10.1002/anie.202010166] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Wenlang Li
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Qiuyi Huang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Zhan Yang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Xiaoyue Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, Center for Physical Mechanics and Biophysics School of Physics Sun Yat-sen University Guangzhou 510275 China
| | - Dongyu Ma
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Juan Zhao
- School of Materials Science and Engineering Sun Yat-sen University Guangzhou 510275 China
| | - Chao Xu
- Key Laboratory of Theoretical Chemistry of Environment Ministry of Education School of Chemistry South China Normal University Guangzhou 510006 China
| | - Zhu Mao
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Yi Zhang
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
| | - Zhenguo Chi
- PCFM Lab, GDHPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of OEMT School of Chemistry Sun Yat-sen University Guangzhou 510275 China
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Li C, Zhang J, Zhang S, Zhao Y. Efficient Light‐Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812146] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Chuanqi Li
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Jing Zhang
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Shiyong Zhang
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yan Zhao
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
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Li C, Zhang J, Zhang S, Zhao Y. Efficient Light-Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace. Angew Chem Int Ed Engl 2018; 58:1643-1647. [PMID: 30418700 DOI: 10.1002/anie.201812146] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Indexed: 01/26/2023]
Abstract
Light harvesting is a key step in photosynthesis but creation of synthetic light-harvesting systems (LHSs) with high efficiencies has been challenging. When donor and acceptor dyes with aggregation-induced emission were trapped within the interior of cross-linked reverse vesicles, LHSs were obtained readily through spontaneous hydrophobically driven aggregation of the dyes in water. Aggregation in the confined nanospace was critical to the energy transfer and the light-harvesting efficiency. The efficiency of the excitation energy transfer (EET) reached 95 % at a donor/acceptor ratio of 100:1 and the energy transfer was clearly visible even at a donor/acceptor ratio of 10 000:1. Multicolor emission was achieved simply by tuning the donor/acceptor feed ratio in the preparation and the quantum yield of white light emission from the system was 0.38, the highest reported for organic materials in water to date.
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Affiliation(s)
- Chuanqi Li
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Jing Zhang
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, USA
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