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Effect of molecular packing on modulation of electronic properties of organic donor–acceptor hybrid gels. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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2
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Ni W, Gurzadyan GG, Zhao J, Che Y, Li X, Sun L. Singlet Fission from Upper Excited Electronic States of Cofacial Perylene Dimer. J Phys Chem Lett 2019; 10:2428-2433. [PMID: 31025867 DOI: 10.1021/acs.jpclett.9b00717] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Singlet fission directly from the upper excited vibrational and electronic states of cofacial perylene dimers, bypassing the relaxed state S1, was detected within 50 fs. This process competes well with vibrational cooling in S1 (4.7-7.0 ps) and S2 → S1 internal conversion (380 fs). The singlet fission has the energy threshold E = 3.06 eV. Other competitive relaxation processes are excimer and dimer cation formation on an ultrafast time scale. Excitation to higher energy levels (4.96 eV) leads to a higher efficiency of singlet fission.
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Affiliation(s)
- Wenjun Ni
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis , Dalian University of Technology , 116024 Dalian , China
| | - Gagik G Gurzadyan
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis , Dalian University of Technology , 116024 Dalian , China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , 116024 Dalian , China
| | - Yuanyuan Che
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , 116024 Dalian , China
| | - Xiaoxin Li
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis , Dalian University of Technology , 116024 Dalian , China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis , Dalian University of Technology , 116024 Dalian , China
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health , KTH Royal Institute of Technology , 10044 Stockholm , Sweden
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Ie Y, Kishimoto Y, Morikawa K, Aso Y. Synthesis, Properties, and Photovoltaic Characteristics of Donor-Acceptor Copolymers Based on Tetrafluoro-Substituted Benzodioxocyclohexene-Annelated Thiophene. J PHOTOPOLYM SCI TEC 2018. [DOI: 10.2494/photopolymer.31.145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yutaka Ie
- The Institute of Scientific and Industrial Research (ISIR), Osaka University
| | - Yota Kishimoto
- The Institute of Scientific and Industrial Research (ISIR), Osaka University
| | - Koki Morikawa
- The Institute of Scientific and Industrial Research (ISIR), Osaka University
| | - Yoshio Aso
- The Institute of Scientific and Industrial Research (ISIR), Osaka University
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5
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Chal P, Shit A, Nandi AK. Optoelectronic Properties of Supramolecular Aggregates of Phenylalanine Conjugated Perylene Bisimide. ChemistrySelect 2018. [DOI: 10.1002/slct.201800363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pousali Chal
- Polymer Science unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata-700032 India
| | - Arnab Shit
- Polymer Science unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata-700032 India
| | - Arun K. Nandi
- Polymer Science unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata-700032 India
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6
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Hanprasit S, Tungkijanansin N, Prompawilai A, Eangpayung S, Ervithayasuporn V. Synthesis and isolation of non-chromophore cage-rearranged silsesquioxanes from base-catalyzed reactions. Dalton Trans 2016; 45:16117-16120. [DOI: 10.1039/c6dt02585d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbonate (CO32−) anion as a stronger base but poorer in nucleophilicity gives rise exclusively to a cage expansion of unsubstituted products.
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Affiliation(s)
- Sasikarn Hanprasit
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Nuttanee Tungkijanansin
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Arisa Prompawilai
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Supattra Eangpayung
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Vuthichai Ervithayasuporn
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
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Singh R, Shivanna R, Iosifidis A, Butt HJ, Floudas G, Narayan KS, Keivanidis PE. Charge versus Energy Transfer Effects in High-Performance Perylene Diimide Photovoltaic Blend Films. ACS APPLIED MATERIALS & INTERFACES 2015; 7:24876-24886. [PMID: 26480854 DOI: 10.1021/acsami.5b08224] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Perylene diimide (PDI)-based organic photovoltaic devices can potentially deliver high power conversion efficiency values provided the photon energy absorbed is utilized efficiently in charge transfer (CT) reactions instead of being consumed in nonradiative energy transfer (ET) steps. Hitherto, it remains unclear whether ET or CT primarily drives the photoluminescence (PL) quenching of the PDI excimer state in PDI-based blend films. Here, we affirm the key role of the thermally assisted PDI excimer diffusion and subsequent CT reaction in the process of PDI excimer PL deactivation. For our study we perform PL quenching experiments in the model PDI-based composite made of poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene)-2-6-diyl] (PBDTTT-CT) polymeric donor mixed with the N,N'-bis(1-ethylpropyl)-perylene-3,4,9,10-tetracarboxylic diimide (PDI) acceptor. Despite the strong spectral overlap between the PDI excimer PL emission and UV-vis absorption of PBDTTT-CT, two main observations indicate that no significant ET component operates in the overall PL quenching: the PL intensity of the PDI excimer (i) increases with decreasing temperature and (ii) remains unaffected even in the presence of 10 wt % content of the PBDTTT-CT quencher. Temperature-dependent wide-angle X-ray scattering experiments further indicate that nonradiative resonance ET is highly improbable due to the large size of PDI domains. The dominance of the CT over the ET process is verified by the high performance of devices with an optimum composition of 30:70 PBDTTT-CT:PDI. By adding 0.4 vol % of 1,8-diiodooctane we verify the plasticization of the polymer side chains that balances the charge transport properties of the PBDTTT-CT:PDI composite and results in additional improvement in the device efficiency. The temperature-dependent spectral width of the PDI excimer PL band suggests the presence of energetic disorder in the PDI excimer excited state manifold.
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Affiliation(s)
- Ranbir Singh
- Centre for Nanoscience and Technology@PoliMi, Fondazione Istituto Italiano di Tecnologia , Via Giovanni Pascoli 70/3, 20133 Milano, Italy
| | - Ravichandran Shivanna
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bangalore 560064, India
| | | | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - George Floudas
- Department of Physics, University of Ioannina , 451 10 Ioannina, Greece
| | - K S Narayan
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bangalore 560064, India
| | - Panagiotis E Keivanidis
- Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology , Dorothea Bldg, fifth floor, 45 Kitiou Kyprianou Str., Limassol 3041, Cyprus
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Ie Y, Jinnai S, Karakawa M, Saeki A, Seki S, Aso Y. Synthesis, properties, and semiconducting characteristics of electron-transporting three-dimensional π-conjugated compounds containing dicyanomethylene-substituted difluorocyclopenta[b]thiophene. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2014.07.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rutledge LR, McAfee SM, Welch GC. Design and Computational Characterization of Non-Fullerene Acceptors for Use in Solution-Processable Solar Cells. J Phys Chem A 2014; 118:7939-51. [DOI: 10.1021/jp505867y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lesley R. Rutledge
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Seth M. McAfee
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Gregory C. Welch
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
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Yu C, He C, Yang Y, Cai Z, Luo H, Li W, Peng Q, Zhang G, Liu Z, Zhang D. New Conjugated Molecules with Two and Three Dithienyldiketopyrrolopyrrole (DPP) Moieties Substituted atmetaPositions of Benzene toward p- and n-Type Organic Photovoltaic Materials. Chem Asian J 2014; 9:1570-8. [DOI: 10.1002/asia.201400089] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Indexed: 11/09/2022]
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Lin X, Hirono M, Kurata H, Seki T, Maruya Y, Nakayama KI, Yagai S. A Perylene Bisimide Organogelator for Chlorinated Solvents. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201300252] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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