1
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Zhang H, Mao R, Yuan L, Wang Y, Liu W, Wang J, Tai H, Jiang Y. Near-Infrared Organic Photodetectors with Spectral Response over 1200 nm Adopting a Thieno[3,4- c]thiadiazole-Based Acceptor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9088-9097. [PMID: 38319245 DOI: 10.1021/acsami.3c15902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The nonclassical ten-pi-electron 5,5-fused thieno[3,4-c]thiadiazole (TTD) unit is an excellent building block for constructing sub-silicon-band gap organic semiconductors. However, no small molecule acceptor (SMA) materials based on TTD have been reported despite the fact that high-sensitivity near-infrared organic photodetectors (OPDs) are generally achieved by using SMAs. In this work, we report a TTD-based narrow band gap (0.95 eV) SMA material TTD(DTC-2FIC)2 with strong near-infrared absorption. Employing PTB7-Th as a donor, OPDs based on TTD(DTC-2FIC)2 exhibit an optimized responsivity of 0.095 (±0.007) A W-1 at 1100 nm and sustain a decent responsivity of 0.074 (±0.008) A W-1 at 1200 nm. Moreover, a good specific detectivity over 1 × 1011 Jones is achieved at a wavelength of 1200 nm. Detailed characterizations imply that the performance of TTD(DTC-2FIC)2-based OPDs may be substantially improved by choosing lower-mixing donors with shallower energy levels. This work demonstrates that SMAs incorporating TTD as the core unit hold promise for constructing high-sensitivity sub-silicon-band gap OPDs.
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Affiliation(s)
- Hanwen Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Rui Mao
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Liu Yuan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Yang Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Wei Liu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Jiaqi Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Huiling Tai
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Yadong Jiang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
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2
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Chaudhry S, Wu Y, Cao Z, Li S, Canada JL, Gu X, Risko C, Mei J. Evolution of Chain Dynamics and Oxidation States with Increasing Chain Length for a Donor–Acceptor-Conjugated Oligomer Series. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saadia Chaudhry
- Department of Chemistry, Purdue University West Lafayette, Indiana 47907, United States
| | - Yukun Wu
- Department of Chemistry, Purdue University West Lafayette, Indiana 47907, United States
| | - Zhiqiang Cao
- School of Polymer Science and Engineering, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Shi Li
- Department of Chemistry & Center for Applied Energy Research (CAER), University of Kentucky, Lexington, Kentucky 40506, United States
| | - Jodie L. Canada
- Department of Chemistry & Center for Applied Energy Research (CAER), University of Kentucky, Lexington, Kentucky 40506, United States
| | - Xiaodan Gu
- School of Polymer Science and Engineering, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Chad Risko
- Department of Chemistry & Center for Applied Energy Research (CAER), University of Kentucky, Lexington, Kentucky 40506, United States
| | - Jianguo Mei
- Department of Chemistry, Purdue University West Lafayette, Indiana 47907, United States
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3
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Affiliation(s)
- F. Ruipérez
- POLYMAT, University of the Basque Country UPV/EHU, Donostia-San Sebastián, Spain
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4
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Lee SM, Lee HR, Dutta GK, Lee J, Oh JH, Yang C. Furan-flanked diketopyrrolopyrrole-based chalcogenophene copolymers with siloxane hybrid side chains for organic field-effect transistors. Polym Chem 2019. [DOI: 10.1039/c9py00448c] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Furan-flanked diketopyrrolopyrrole-based chalcogenophene copolymers are synthesized for the comprehensive study of the heterocyclic effect in organic field-effect transistors.
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Affiliation(s)
- Sang Myeon Lee
- Department of Energy Engineering
- School of Energy and Chemical Engineering
- Perovtronics Research Center
- Low Dimensional Carbon Materials Center
- Ulsan National Institute of Science and Technology (UNIST)
| | - Hae Rang Lee
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Gitish K. Dutta
- Department of Energy Engineering
- School of Energy and Chemical Engineering
- Perovtronics Research Center
- Low Dimensional Carbon Materials Center
- Ulsan National Institute of Science and Technology (UNIST)
| | - Junghoon Lee
- Department of Energy Engineering
- School of Energy and Chemical Engineering
- Perovtronics Research Center
- Low Dimensional Carbon Materials Center
- Ulsan National Institute of Science and Technology (UNIST)
| | - Joon Hak Oh
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Changduk Yang
- Department of Energy Engineering
- School of Energy and Chemical Engineering
- Perovtronics Research Center
- Low Dimensional Carbon Materials Center
- Ulsan National Institute of Science and Technology (UNIST)
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5
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Kamble RM, Sharma BK, Shaikh AM, Chacko S. Design, Synthesis, Opto-Electrochemical and Theoretical Investigation of Novel Indolo[2, 3-b]naphtho[2, 3-f]quinoxaline Derivatives forn-Type Materials in Organic Electronics. ChemistrySelect 2018. [DOI: 10.1002/slct.201801208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rajesh M. Kamble
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Bharat K. Sharma
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Azam M. Shaikh
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Sajeev Chacko
- Department of Physics; University of Mumbai; Mumbai - 400098 India
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6
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Fradon A, Cloutet E, Hadziioannou G, Brochon C, Castet F. Optical properties of donor–acceptor conjugated copolymers: A computational study. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Bohnwagner MV, Burghardt I, Dreuw A. Regular and red-shifted fluorescence of the donor–acceptor compound 5-(1H-pyrrole-1-yl)thiophenecarbonitrile (TCN) is efficiently quenched by internal modes of thiophene. Phys Chem Chem Phys 2017; 19:13951-13959. [DOI: 10.1039/c7cp01460k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochemical properties of thiophene analogs of N-pyrrolobenzonitrile (PBN), notably the two isomers 5-(1H-pyrrole-1-yl)thiophene-2-carbonitrile (2-TCN) and 5-(1H-pyrrole-1-yl)thiophene-3-carbonitrile (3-TCN) have been investigated.
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Affiliation(s)
- Mercedes V. Bohnwagner
- Interdisciplinary Center for Scientific Computing
- Im Neuenheimer Feld 205
- 69120 Heidelberg
- Germany
| | - Irene Burghardt
- Institute of Physical and Theoretical Chemistry
- Max-von-Laue-Straße 7
- 60438 Frankfurt
- Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing
- Im Neuenheimer Feld 205
- 69120 Heidelberg
- Germany
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8
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Konkol KL, Schwiderski RL, Rasmussen SC. Synthesis, Characterization, and Electropolymerization of Extended Fused-Ring Thieno[3,4-b]pyrazine-Based Terthienyls. MATERIALS 2016; 9:ma9060404. [PMID: 28773538 PMCID: PMC5456834 DOI: 10.3390/ma9060404] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 05/13/2016] [Accepted: 05/18/2016] [Indexed: 01/12/2023]
Abstract
The synthesis, characterization, and electropolymerization of a series of extended fused-ring thieno[3,4-b]pyrazine-based terthienyls are reported. The target terthienyls contain a central extended thieno[3,4-b]pyrazine analogue containing 2-thienyl units at the reactive α-positions of the central thiophene. The extended fused-ring thieno[3,4-b]pyrazine analogues studied include acenaphtho[1,2-b]thieno[3,4-e]pyrazine, dibenzo[f,h]thieno[3,4-b]quinoxaline, and thieno[3′,4′:5,6]-pyrazino[2,3-f][1,10]phenanthroline. Comparison of the electrochemical and photophysical properties to simple thieno[3,4-b]pyrazine-based terthienyls and their polymeric analogues are reported in order to provide structure-function relationships within this series of compounds and materials.
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Affiliation(s)
- Kristine L Konkol
- Department of Chemistry and Biochemistry, North Dakota State University, NDSU Dept. 2735, Fargo, ND 58108-6050, USA.
| | - Ryan L Schwiderski
- Department of Chemistry and Biochemistry, North Dakota State University, NDSU Dept. 2735, Fargo, ND 58108-6050, USA.
| | - Seth C Rasmussen
- Department of Chemistry and Biochemistry, North Dakota State University, NDSU Dept. 2735, Fargo, ND 58108-6050, USA.
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9
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Bathula C, Lee SK, Kalode P, Badgujar S, Belavagi NS, Khazi IAM, Kang Y. Synthesis and Photophysical Studies of Thiadiazole[3,4-c]pyridine Copolymer Based Organic Field-Effect Transistors. J Fluoresc 2016; 26:1045-52. [DOI: 10.1007/s10895-016-1792-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/27/2016] [Indexed: 11/30/2022]
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10
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Bathula C, Kalode P, Patil S, Lee SK, Belavagi NS, Khazi IA, Kang Y. Synthesis and electronic properties of thiadiazole[3,4-c]pyridine copolymers for solar cell application. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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SambathKumar B, Varathan E, Subramanian V, Somanathan N. Design of medium band gap random terpolymers containing fluorene linked diketopyrrolopyrrole and thiophene co-monomers: an experimental and theoretical study. NEW J CHEM 2016. [DOI: 10.1039/c5nj02072g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six different random terpolymers were synthesised and their optoelectronic properties were fine-tuned by varying the thiophene strength.
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Affiliation(s)
- B. SambathKumar
- CSIR -Central Leather Research Institute
- (CSIR)-CLRI
- Chennai-600020
- India
- CSIR-Network of Institutes for Solar Energy
| | - E. Varathan
- CSIR -Central Leather Research Institute
- (CSIR)-CLRI
- Chennai-600020
- India
- CSIR-Network of Institutes for Solar Energy
| | - V. Subramanian
- CSIR -Central Leather Research Institute
- (CSIR)-CLRI
- Chennai-600020
- India
- CSIR-Network of Institutes for Solar Energy
| | - N. Somanathan
- CSIR -Central Leather Research Institute
- (CSIR)-CLRI
- Chennai-600020
- India
- CSIR-Network of Institutes for Solar Energy
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12
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Aryanpour K, Dutta T, Huynh UNV, Vardeny ZV, Mazumdar S. Theory of Primary Photoexcitations in Donor-Acceptor Copolymers. PHYSICAL REVIEW LETTERS 2015; 115:267401. [PMID: 26765027 DOI: 10.1103/physrevlett.115.267401] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 05/21/2023]
Abstract
We present a generic theory of primary photoexcitations in low band gap donor-acceptor conjugated copolymers. Because of the combined effects of strong electron correlations and broken symmetry, there is considerable mixing between a charge-transfer exciton and an energetically proximate triplet-triplet state with an overall spin singlet. The triplet-triplet state, optically forbidden in homopolymers, is allowed in donor-acceptor copolymers. For an intermediate difference in electron affinities of the donor and the acceptor, the triplet-triplet state can have a stronger oscillator strength than the charge-transfer exciton. We discuss the possibility of intramolecular singlet fission from the triplet-triplet state, and how such fission can be detected experimentally.
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Affiliation(s)
- Karan Aryanpour
- Department of Physics, University of Arizona, Tucson, Arizona 85721, USA
| | - Tirthankar Dutta
- Department of Physics, University of Arizona, Tucson, Arizona 85721, USA
| | - Uyen N V Huynh
- Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA
| | - Zeev Valy Vardeny
- Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA
| | - Sumit Mazumdar
- Departments of Physics and Chemistry, University of Arizona, Tucson, Arizona 85721, USA
- College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
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13
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Sharma B, Sarothia Y, Singh R, Kan Z, Keivanidis PE, Jacob J. Synthesis and characterization of light-absorbing cyclopentadithiophene-based donor-acceptor copolymers. POLYM INT 2015. [DOI: 10.1002/pi.5024] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Bhavna Sharma
- Centre for Polymer Science and Engineering; Indian Institute of Technology; Hauz Khas New Delhi 110016 India
| | - Yameeni Sarothia
- Centre for Polymer Science and Engineering; Indian Institute of Technology; Hauz Khas New Delhi 110016 India
| | - Ranbir Singh
- Centre for Nano Science and Technology; Istituto Italiano di Technologia; Via G. Pascoli 70/3 20133 Milano Italy
| | - Zhipeng Kan
- Centre for Nano Science and Technology; Istituto Italiano di Technologia; Via G. Pascoli 70/3 20133 Milano Italy
| | - Panagiotis E Keivanidis
- Department of Mechanical Engineering and Materials Science and Engineering; Cyprus University of Technology; Dorothea Bldg 511, 45 Kitiou Kyprianou str. 3041 Limassol Cyprus
| | - Josemon Jacob
- Centre for Polymer Science and Engineering; Indian Institute of Technology; Hauz Khas New Delhi 110016 India
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14
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Tang T, Lin T, Wang F, He C. A new aspect of cyclopentadithiophene based polymers: narrow band gap polymers upon protonation. Chem Commun (Camb) 2015. [DOI: 10.1039/c5cc04028k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new aspect of CPDT based conjugated polymers that CPDT units in the polymers can be protonated with a significant change in optical and electronic properties was reported.
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Affiliation(s)
- Tao Tang
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
- Institute of Materials Research and Engineering
| | - Tingting Lin
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 117602
- Singapore
| | - FuKe Wang
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 117602
- Singapore
- Department of Chemistry
| | - Chaobin He
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
- Institute of Materials Research and Engineering
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15
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Shao J, Wang G, Wang K, Yang C, Wang M. Direct arylation polycondensation for efficient synthesis of narrow-bandgap alternating D–A copolymers consisting of naphthalene diimide as an acceptor. Polym Chem 2015. [DOI: 10.1039/c5py00595g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Direct arylation polycondensation enables efficient synthesis of narrow-bandgap, well-defined alternating D–A copolymers consisting of naphthalene diimide as the acceptor unit.
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Affiliation(s)
- Jinjun Shao
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Guojie Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Kai Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Cangjie Yang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Mingfeng Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
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16
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Xue P, Wang P, Yao B, Sun J, Gong P, Zhang Z, Qian C, Lu R. Nanofibers of hydrogen-bonded two-component gel with closely connected p- and n-channels and photoinduced electron transfer. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21426-21434. [PMID: 25347786 DOI: 10.1021/am506422m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An D-A-D gelator (DTCQ) was designed and synthesized using 2,3-dimethyl-5,8-di(thiophen-2-yl)quinoxaline and N-alkyl 3-aminocarbazole units as acceptor and donor, respectively, which were linked by a single bond. The compound could gelate several solvents, such as benzyl alcohol, aniline, acetophenone, and o-dichlorobenzene, as well as self-assemble into one-dimensional (1D) nanofibers in gel phase. The absorption and infrared spectra of the gels indicated that π-π interactions between aromatic moieties, intermolecular hydrogen bonds between amide units, and van der Waals forces were the driving forces for the formation of 1D self-assemblies and gel. DTCQ gel was red and emits red fluorescence because it has a strong absorption band at 487 nm and an emissive band at 620 nm. Moreover, DTCQ and a fullerene carboxylic acid formed two-component gel, in which the two compounds developed a hydrogen bond complex and self-assembled into 1D nanofibers with closely connected p- and n-channels. The nanofibrous xerogel film can rapidly generate a photocurrent under visible-light radiation through electron transfer from the gelator to fullerene, and then, the excellent exciton separation and charge transfer to two electrodes.
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Affiliation(s)
- Pengchong Xue
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699# Qianjin Street, Changchun 130012, P. R. China
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17
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Venkateswararao A, Tyagi P, Justin Thomas K, Chen PW, Ho KC. Organic dyes containing indolo[2,3-b]quinoxaline as a donor: synthesis, optical and photovoltaic properties. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Singh SP, Sharma GD. Near Infrared Organic Semiconducting Materials for Bulk Heterojunction and Dye-Sensitized Solar Cells. CHEM REC 2014; 14:419-81. [DOI: 10.1002/tcr.201300041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Surya Prakash Singh
- Inorganic & Physical Chemistry Division; CSIR-Indian Institute of Chemical Technolog; Hyderabad 500607 India
| | - G. D. Sharma
- R & D center for Engineering and Science; JEC group of Colleges; Jaipur Engineering College Campus; Kukas Jaipur India
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19
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Wen L, Heth CL, Rasmussen SC. Thieno[3,4-b]pyrazine-based oligothiophenes: simple models of donor–acceptor polymeric materials. Phys Chem Chem Phys 2014; 16:7231-40. [DOI: 10.1039/c4cp00312h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thieno[3,4-b]pyrazine-based oligomers have been thoroughly investigated in order to correlate the effects of conjugation length and ‘donor–acceptor’ properties on the resulting optical and electronic properties.
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Affiliation(s)
- Li Wen
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
| | - Christopher L. Heth
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
| | - Seth C. Rasmussen
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
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20
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Marin L, Penxten H, Van Mierloo S, Carleer R, Lutsen L, Vanderzande D, Maes W. In situ
monitoring the thermal degradation of PCPDTBT low band gap polymers with varying alkyl side-chain patterns. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26920] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lidia Marin
- Design and Synthesis of Organic Semiconductors (DSOS); Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
- IMEC; IMOMEC Ass. Lab.; Universitaire Campus; Wetenschapspark 1; 3590 Diepenbeek Belgium
| | - Huguette Penxten
- Design and Synthesis of Organic Semiconductors (DSOS); Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
| | - Sarah Van Mierloo
- Design and Synthesis of Organic Semiconductors (DSOS); Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
| | - Robert Carleer
- Applied and Analytical Chemistry; Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
| | - Laurence Lutsen
- IMEC; IMOMEC Ass. Lab.; Universitaire Campus; Wetenschapspark 1; 3590 Diepenbeek Belgium
| | - Dirk Vanderzande
- Design and Synthesis of Organic Semiconductors (DSOS); Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
- IMEC; IMOMEC Ass. Lab.; Universitaire Campus; Wetenschapspark 1; 3590 Diepenbeek Belgium
| | - Wouter Maes
- Design and Synthesis of Organic Semiconductors (DSOS); Institute for Materials Research (IMO-IMOMEC), Hasselt University; Agoralaan 1 - Building D, 3590 Diepenbeek Belgium
- IMEC; IMOMEC Ass. Lab.; Universitaire Campus; Wetenschapspark 1; 3590 Diepenbeek Belgium
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21
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Grisorio R, Suranna GP, Mastrorilli P, Allegretta G, Loiudice A, Rizzo A, Gigli G, Manoli K, Magliulo M, Torsi L. All-donor poly(arylene-ethynylene)s containing anthracene and silole-based units: Synthesis, electronic, and photovoltaic properties. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26914] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Roberto Grisorio
- DICATECh: Dipartimento di Ingegneria Civile; Ambientale, del Territorio, Edile e di Chimica, Polytechnic of Bari, Campus Universitario; via Orabona 4 70125 Bari Italy
| | - Gian Paolo Suranna
- DICATECh: Dipartimento di Ingegneria Civile; Ambientale, del Territorio, Edile e di Chimica, Polytechnic of Bari, Campus Universitario; via Orabona 4 70125 Bari Italy
| | - Piero Mastrorilli
- DICATECh: Dipartimento di Ingegneria Civile; Ambientale, del Territorio, Edile e di Chimica, Polytechnic of Bari, Campus Universitario; via Orabona 4 70125 Bari Italy
- Consiglio Nazionale delle Ricerche; Istituto di Chimica dei Composti Organometallici (ICCOM-CNR); via Orabona 4 70125 Bari Italy
| | - Giovanni Allegretta
- Università degli Studi “Aldo Moro” di Bari; Dipartimento di Chimica; via Orabona 4 70126 Bari Italy
| | - Anna Loiudice
- Dipartimento di Matematica e Fisica “E. De Giorgi”; Università del Salento; via Monteroni 73100 Lecce Italy
- CBN - Center for Biomolecular Nanotechnologies; Italian Institute of Technology - Energy Platform; via Barsanti sn-73010 Arnesano (LE) Italy
| | - Aurora Rizzo
- CBN - Center for Biomolecular Nanotechnologies; Italian Institute of Technology - Energy Platform; via Barsanti sn-73010 Arnesano (LE) Italy
- NNL CNR-Istituto Nanoscienze, c/o Distretto Tecnologico; via per Arnesano km 5 73100 Lecce Italy
| | - Giuseppe Gigli
- Dipartimento di Matematica e Fisica “E. De Giorgi”; Università del Salento; via Monteroni 73100 Lecce Italy
- CBN - Center for Biomolecular Nanotechnologies; Italian Institute of Technology - Energy Platform; via Barsanti sn-73010 Arnesano (LE) Italy
- NNL CNR-Istituto Nanoscienze, c/o Distretto Tecnologico; via per Arnesano km 5 73100 Lecce Italy
| | - Kyriaki Manoli
- Università degli Studi “Aldo Moro” di Bari; Dipartimento di Chimica; via Orabona 4 70126 Bari Italy
| | - Maria Magliulo
- Università degli Studi “Aldo Moro” di Bari; Dipartimento di Chimica; via Orabona 4 70126 Bari Italy
| | - Luisa Torsi
- Università degli Studi “Aldo Moro” di Bari; Dipartimento di Chimica; via Orabona 4 70126 Bari Italy
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22
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Grimm B, Risko C, Azoulay JD, Brédas JL, Bazan GC. Structural dependence of the optical properties of narrow bandgap semiconductors with orthogonal donor–acceptor geometries. Chem Sci 2013. [DOI: 10.1039/c3sc22188a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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23
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Small Optical Gap Molecules and Polymers: Using Theory to Design More Efficient Materials for Organic Photovoltaics. Top Curr Chem (Cham) 2013; 352:1-38. [DOI: 10.1007/128_2013_459] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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24
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Xue P, Xu Q, Gong P, Qian C, Zhang Z, Jia J, Zhao X, Lu R, Ren A, Zhang T. Two-component gel of a D–π–A–π–D carbazole donor and a fullerene acceptor. RSC Adv 2013. [DOI: 10.1039/c3ra45771k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Pandey L, Risko C, Norton JE, Brédas JL. Donor–Acceptor Copolymers of Relevance for Organic Photovoltaics: A Theoretical Investigation of the Impact of Chemical Structure Modifications on the Electronic and Optical Properties. Macromolecules 2012. [DOI: 10.1021/ma301164e] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Laxman Pandey
- School of Chemistry & Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Chad Risko
- School of Chemistry & Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Joseph E. Norton
- School of Chemistry & Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Jean-Luc Brédas
- School of Chemistry & Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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26
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27
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Kaake LG, Welch GC, Moses D, Bazan GC, Heeger AJ. Influence of Processing Additives on Charge-Transfer Time Scales and Sound Velocity in Organic Bulk Heterojunction Films. J Phys Chem Lett 2012; 3:1253-1257. [PMID: 26286767 DOI: 10.1021/jz300365b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The role of processing additives in organic bulk heterojunction thin films was investigated by means of transient absorption spectroscopy. The rate of ultrafast charge transfer was found to increase when a small amount of diiodooctane was used during film formation. In addition, coherent acoustic phonons were observed, and their velocity was determined. A strong correlation between the sound velocity and the charge-transfer time scale was observed, both of which could be explained by a subtle increase in thin film density.
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Affiliation(s)
- Loren G Kaake
- Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Gregory C Welch
- Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Daniel Moses
- Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Guillermo C Bazan
- Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Alan J Heeger
- Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
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28
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Sumpter BG, Meunier V. Can computational approaches aid in untangling the inherent complexity of practical organic photovoltaic systems? ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23075] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Abbotto A, Seri M, Dangate MS, De Angelis F, Manfredi N, Mosconi E, Bolognesi M, Ruffo R, Salamone MM, Muccini M. A vinylene‐linked benzo[1,2‐
b
:4,5‐
b'
]dithiophene‐2,1,3‐benzothiadiazole low‐bandgap polymer. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alessandro Abbotto
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
| | - Mirko Seri
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR‐ISMN), Via P. Gobetti101, Bologna I‐40129, Italy
| | - Milind S. Dangate
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
| | - Filippo De Angelis
- Consiglio Nazionale delle Ricerche, Istituto CNR di Scienze e Tecnologie Molecolari (CNR‐Italy), Via Elce di Sotto 8, Perugia I‐06213, Italy
| | - Norberto Manfredi
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
| | - Edoardo Mosconi
- Consiglio Nazionale delle Ricerche, Istituto CNR di Scienze e Tecnologie Molecolari (CNR‐Italy), Via Elce di Sotto 8, Perugia I‐06213, Italy
| | | | - Riccardo Ruffo
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
| | - Matteo M. Salamone
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
| | - Michele Muccini
- Department of Materials Science, Milano‐Bicocca Solar Energy Research Center—MIB‐Solar, University of Milano‐Bicocca, Via Cozzi 53, Milano I‐20125, Italy
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30
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Patel DG(D, Feng F, Ohnishi YY, Abboud KA, Hirata S, Schanze KS, Reynolds JR. It Takes More Than an Imine: The Role of the Central Atom on the Electron-Accepting Ability of Benzotriazole and Benzothiadiazole Oligomers. J Am Chem Soc 2012; 134:2599-612. [DOI: 10.1021/ja207978v] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dinesh G. (Dan) Patel
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Fude Feng
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Yu-ya Ohnishi
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Khalil A. Abboud
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - So Hirata
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kirk S. Schanze
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - John R. Reynolds
- Department of Chemistry,
Center for Macromolecular
Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
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31
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Horie M, Kettle J, Yu CY, Majewski LA, Chang SW, Kirkpatrick J, Tuladhar SM, Nelson J, Saunders BR, Turner ML. Cyclopentadithiophene-benzothiadiazole oligomers and polymers; synthesis, characterisation, field-effect transistor and photovoltaic characteristics. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm12449h] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Delcamp JH, Yella A, Nazeeruddin MK, Grätzel M. Modulating dye E(S+/S*) with efficient heterocyclic nitrogen containing acceptors for DSCs. Chem Commun (Camb) 2012; 48:2295-7. [DOI: 10.1039/c2cc17142b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Rasmussen SC, Schwiderski RL, Mulholland ME. Thieno[3,4-b]pyrazines and their applications to low band gap organic materials. Chem Commun (Camb) 2011; 47:11394-410. [PMID: 21785759 DOI: 10.1039/c1cc12754c] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The application of fused-ring thieno[3,4-b]pyrazines in conjugated organic polymers has been found to be a powerful approach to the production of low band gap materials. While thieno[3,4-b]pyrazine-based materials date back to the early 1990s, significant advances in the preparation and scope of thieno[3,4-b]pyrazine-based materials have been reported in recent years, primarily in response to the increasing demand for reduced band gap materials in photovoltaic devices. In this review, we provide an overview of thieno[3,4-b]pyrazines and their application to conjugated materials, highlighting in particular the recent advances in the breadth of thieno[3,4-b]pyrazine building blocks and the promise of tuning materials to achieve optimal properties for specific applications.
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Affiliation(s)
- Seth C Rasmussen
- Department of Chemistry and Biochemistry, North Dakota State University, NDSU Dept. 2735, P.O. Box 6050, Fargo, ND 58108-6050, USA.
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34
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Si Larbi K, Djebbar S, Doucet H. Palladium-Catalysed Direct Monoarylation of Bithiophenyl Derivatives or Bis(thiophen-2-yl)methanone with Aryl Bromides. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100294] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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35
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Nietfeld JP, Schwiderski RL, Gonnella TP, Rasmussen SC. Structural Effects on the Electronic Properties of Extended Fused-Ring Thieno[3,4-b]pyrazine Analogues. J Org Chem 2011; 76:6383-8. [DOI: 10.1021/jo200850w] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jon P. Nietfeld
- Department of Chemistry and Biochemistry, North Dakota State University, Dept. 2735, PO Box 6050, Fargo, North Dakota 58108, United States
| | - Ryan L. Schwiderski
- Department of Chemistry and Biochemistry, North Dakota State University, Dept. 2735, PO Box 6050, Fargo, North Dakota 58108, United States
| | - Thomas P. Gonnella
- Division of Science and Mathematics, Mayville State University, Mayville, North Dakota 58257, United States
| | - Seth C. Rasmussen
- Department of Chemistry and Biochemistry, North Dakota State University, Dept. 2735, PO Box 6050, Fargo, North Dakota 58108, United States
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36
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Popere BC, Della Pelle AM, Thayumanavan S. BODIPY-Based Donor–Acceptor π-Conjugated Alternating Copolymers. Macromolecules 2011. [DOI: 10.1021/ma200839q] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bhooshan C. Popere
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Andrea M. Della Pelle
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
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37
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Risko C, McGehee MD, Brédas JL. A quantum-chemical perspective into low optical-gap polymers for highly-efficient organic solar cells. Chem Sci 2011. [DOI: 10.1039/c0sc00642d] [Citation(s) in RCA: 220] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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38
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Abstract
We report on the interaction of Lewis acids with narrow band gap conjugated copolymers containing donor and acceptor units. Examination of the widely used poly[(4,4-bis(2-ethylhexyl)cyclopenta-[2,1-b:3,4-b']dithiophene)-2,6-(diyl-alt-benzo[2,1,3]thiadiazole)-4,7-diyl] (1) shows weaker binding with B(C(6)F(5))(3) when compared with a small molecule that contains a cyclopenta-[2,1-b:3,4-b']dithiophene (CDT) unit flanked by two benzo[2,1,3]thiadiazole (BT) fragments. Studies on model compounds representative of 1, together with a comparison between B(C(6)F(5))(3) and BBr(3), indicate that the propensity for Lewis acid coordination is decreased because of steric encumbrance surrounding the BT nitrogen sites. These observations led to the design of chromophores that incorporate an acceptor unit with a more basic nitrogen site, namely pyridal[2,1,3]thiadiazole (PT). That this strategy leads to a stronger B-N interaction was demonstrated through the examination of the reaction of B(C(6)F(5))(3) with two small molecules bis(4,4-bis(hexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-4,7-pyridal[2,1,3]thiadiazole (8) and bis{2-thienyl-(4,4-bis(hexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)}-4,7-pyridal[2,1,3]thiadiazole (9) and two polymer systems (poly[(4,4-bis(2-ethylhexyl)cyclopenta-[2,1-b:3,4-b']dithiophene)-2,6-diyl-alt-([1,2,5]thiadiazolo[3,4-c]pyridine)-4,7-diyl] (10) and poly[(4,4-bis(2-ethylhexyl)cyclopenta-[2,1-b:3,4-b']dithiophene)-2,6-diyl-alt-(4',7'-bis(2-thienyl)-[1,2,5]thiadiazolo[3,4-c]pyridine)-5,5-diyl] (11). From a materials perspective, it is worth pointing out that through the binding of B(C(6)F(5))(3), new NIR-absorbing polymers can be generated with band gaps from 1.31 to 0.89 eV. A combination of studies involving ultraviolet photoemission spectroscopy and density functional theory shows that the narrowing of the band gap upon borane coordination to the pyridal nitrogen on PT is a result of lowering the energies of both the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of the optically relevant fragments; however, the LUMO is decreased to a greater extent, thereby giving rise to the narrowing of the gap.
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Affiliation(s)
- Gregory C Welch
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, The University of California, Santa Barbara, California 93106, USA
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39
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Liu Y, Liu Y, Zhan X. High-Mobility Conjugated Polymers Based on Fused-Thiophene Building Blocks. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201000677] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Welch GC, Perez LA, Hoven CV, Zhang Y, Dang XD, Sharenko A, Toney MF, Kramer EJ, Nguyen TQ, Bazan GC. A modular molecular framework for utility in small-molecule solution-processed organic photovoltaic devices. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11963j] [Citation(s) in RCA: 167] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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41
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Abbotto A, Calderon EH, Dangate MS, De Angelis F, Manfredi N, Mari CM, Marinzi C, Mosconi E, Muccini M, Ruffo R, Seri M. Pyridine−EDOT Heteroarylene−Vinylene Donor−Acceptor Polymers. Macromolecules 2010. [DOI: 10.1021/ma1017132] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alessandro Abbotto
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Erika Herrera Calderon
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Milind S. Dangate
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Filippo De Angelis
- Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM) and Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, I-06123, Perugia, Italy
| | - Norberto Manfredi
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Claudio Maria Mari
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Chiara Marinzi
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Edoardo Mosconi
- Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM) and Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, I-06123, Perugia, Italy
| | - Michele Muccini
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Via P. Gobetti 101, I-40129 Bologna, Italy
| | - Riccardo Ruffo
- Department of Materials Science and Solar Energy Research Center (MIB-SOLAR), University of Milano-Bicocca, Via Cozzi 53, I-20125, Milano, Italy
| | - Mirko Seri
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Via P. Gobetti 101, I-40129 Bologna, Italy
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42
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Dutta T, Woody KB, Parkin SR, Watson MD, Gierschner J. Conjugated polymers with large effective Stokes shift: benzobisdioxole-based poly(phenylene ethynylene)s. J Am Chem Soc 2010; 131:17321-7. [PMID: 19891484 DOI: 10.1021/ja9068134] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Phenyleneethynylene-based conjugated copolymers using benzo[1,2-d:4,5-d']bis[1,3]dioxole (BDO) in the repeating unit are reported. The electronic structure of the BDO unit imparts a localized HOMO topology while the LUMO is delocalized over the polymer backbone, so that the lowest optical absorption band of the polymer has considerable intramolecular charge transfer character. This contrasts with published donor-acceptor polymers with localized LUMO and delocalized HOMO. The very large Stokes shifts of the monomers, which are due to the small oscillator strength of the lowest optical transition, are largely retained in the polymers as a result of covalently constrained dihedral angles in the substituents (not the backbone), as predicted/explained by calculations.
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Affiliation(s)
- Tanmoy Dutta
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA
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43
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Mondal R, Ko S, Bao Z. Fused aromatic thienopyrazines: structure, properties and function. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01840f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Mondal R, Ko S, Norton JE, Miyaki N, Becerril HA, Verploegen E, Toney MF, Brédas JL, McGehee MD, Bao Z. Molecular design for improved photovoltaic efficiency: band gap and absorption coefficient engineering. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b915222a] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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