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Lin L, Huang Z, Luo Y, Peng T, He B, Chen G, Hao H, Li X, Cai P, Yang W. Alcohol-soluble fluorene derivate functionalized with pyridyl groups as a high-performance cathode interfacial material in organic solar cells. NEW J CHEM 2021. [DOI: 10.1039/d0nj06143c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis and application as a cathode interlayer in organic photovoltaics of a fluorene derivative with pyridyl functional chains are presented.
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Affiliation(s)
- Lin Lin
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Zeping Huang
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Yuanqi Luo
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Tingen Peng
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Baitian He
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Guiting Chen
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Hongqing Hao
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Xin Li
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Ping Cai
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials
- Guilin University of Electronic Technology
- Guilin 541004
- China
| | - Wei Yang
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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2
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Chen G, Cheng D, Zou W, Cai Z, Xie Y, Chen Y, He B, Hao H, Yang W, Cao Y. Dibenzothiophene- S, S-dioxide-bispyridinium-fluorene-based polyelectrolytes for cathode buffer layers of polymer solar cells. Polym Chem 2020. [DOI: 10.1039/d0py00416b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The successful applications of PFSOPyCl and its newly synthesized derivative PFSOPyCl-E cathode modifiers in inverted polymer solar cells are presented.
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Affiliation(s)
- Guiting Chen
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Dan Cheng
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Wenyan Zou
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Ziyan Cai
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Yufeng Xie
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Yaqi Chen
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Baitian He
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Hongqing Hao
- School of Chemistry and Environment
- Jiaying University
- Meizhou 514015
- China
| | - Wei Yang
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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3
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Gupta M, Yan D, Yao J, Zhan C. Organophosphorus Derivatives as Cathode Interfacial-Layer Materials for Highly Efficient Fullerene-Free Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35896-35903. [PMID: 30260622 DOI: 10.1021/acsami.8b09313] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Roles of cathode interfacial layer (CIL) for low work function metal cathode, which influences significantly the electron extraction and transport processes, are in current trends for improvement in the organic solar cell (OSC) performance. Two organophosphorus derivatives tetraphenylphosphonium bromide (QPhPBr) and ((2-(1,3-dioxan-2-yl)ethyl)triphenylphosphonium bromide) (TPhPEtBr) as CILs individually and with mixed binary layer with N719 were demonstrated. Tremendous improvement in photovoltaic performance with QPhPBr with an average power conversion efficiency, PCE, of 11.08% and TPhPEtBr with PCE of 10.20% as well as their binary layers with 11.61 and 10.74%, respectively, has been achieved using the PBDBT:ITIC blend active layer, in comparison to that of the bare Al cathode (7.37%). The maximum PCE of 12.0% is achieved with QPhPBr:N719 as the CIL, which is the highest value reported in the literature to date for PBDB-T:ITIC-based single junction binary fullerene-free OSCs, suggesting the potential of ionic organophosphorus derivatives and their binary blended mixtures with an ionic n-type organic semiconductor such as N719 used as CILs for realizing high-efficiency fullerene-free OSCs. Their efficient performance would be helpful for potential selection of CILs in OSCs.
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Affiliation(s)
- Monika Gupta
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Dong Yan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Chuanlang Zhan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
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4
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Song C, Liu X, Li X, Wang YC, Wan L, Sun X, Zhang W, Fang J. Perylene Diimide-Based Zwitterion as the Cathode Interlayer for High-Performance Nonfullerene Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14986-14992. [PMID: 29671565 DOI: 10.1021/acsami.8b01147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nonfullerene polymer solar cells (PSCs) have earned widespread and intense interest on account of their properties such as tunable energy levels, potential for low-cost production processes, reduced energy losses, and strong light absorption coefficients. Here, a water-/alcohol-soluble zwitterion perylene diimide zwitterion (PDI-z) consisted of sulfobetaine ion as a terminal substituent and PDI as a conjugated core was synthesized. PDI-z was employed as an electron-transport layer (ETL) for nonfullerene PSC devices, obtaining an optimal power conversion efficiency (PCE) above 11.23%. Moreover, nonfullerene PSCs with the PDI-z cathode interlayer displayed an excellent performance on a large scale of interlayer thickness, which was compatible with printing fabrication techniques. Additionally, the PDI-z interlayer presented good ability of modifying high work function metals (for instance, Au, Cu, and Ag) in nonfullerene devices, and the Ag device displayed a PCE of 9.38%. This work provides a good alternative ETL for high-efficiency nonfullerene PSCs.
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Affiliation(s)
- Changjian Song
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
- University of Chinese Academy of Sciences , 19 A Yuquan Rd , Shijingshan District, Beijing 100049 , China
| | - Xiaohui Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Xiaodong Li
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Ying-Chiao Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Li Wan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Xiaohua Sun
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials , China Three Gorges University , Yichang 443002 , China
| | - Wenjun Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
- University of Chinese Academy of Sciences , 19 A Yuquan Rd , Shijingshan District, Beijing 100049 , China
| | - Junfeng Fang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
- University of Chinese Academy of Sciences , 19 A Yuquan Rd , Shijingshan District, Beijing 100049 , China
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5
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Chakravarthi N, Aryal UK, Gunasekar K, Park HY, Gal YS, Cho YR, Yoo SI, Song M, Jin SH. Triazine-based Polyelectrolyte as an Efficient Cathode Interfacial Material for Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:24753-24762. [PMID: 28658571 DOI: 10.1021/acsami.7b03187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel polyelectrolyte containing triazine (TAZ) and benzodithiophene (BDT) scaffolds with polar phosphine oxide (P═O) and quaternary ammonium ions as pendant groups, respectively, in the polymer backbone (PBTAZPOBr) was synthesized to use it as a cathode interfacial layer (CIL) for polymer solar cell (PSC) application. Owing to the high electron affinity of the TAZ unit and P═O group, PBTAZPOBr could behave as an effective electron transport material. Due to the polar quaternary ammonium and P═O groups, the interfacial dipole moment created by PBTAZPOBr substantially reduced the work function of the metal cathode to afford better energy alignment in the device, thus enabling electron extraction and reducing recombination of excitons at the photoactive layer/cathode interface. Consequently, the PSC devices based on the poly[4,8-bis(2-ethylhexyloxyl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl-alt-ethylhexyl-3-fluorothithieno[3,4-b]thiophene-2-carboxylate-4,6-diyl]:[6,6]-phenyl-C71-butyric acid methyl ester (PTB7:PC71BM) system with PBTAZPOBr as CIL displayed simultaneously enhanced open-circuit voltage, short-circuit current density, and fill factor, whereas the power conversion efficiency increased from 5.42% to 8.04% compared to that of the pristine Al device. The outstanding performance of PBTAZPOBr is attributed not only to the polar pendant groups of BDT unit but also to the TAZ unit linked with the P═O group of PBTAZPOBr, demonstrating that functionalized TAZ building blocks are very promising cathode interfacial materials (CIMs). The design strategy proposed in this work will be helpful to develop more efficient CIMs for high performance PSCs in the future.
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Affiliation(s)
| | | | | | | | - Yeong-Soon Gal
- Polymer Chemistry Laboratory, College of Engineering, Kyungil University , Gyeongsan 712-701, Republic of Korea
| | | | - Seong Il Yoo
- Department of Polymer Engineering, Pukyong National University , Sinseon-ro 365, Busan 608-739, Republic of Korea
| | - Myungkwan Song
- Advanced Functional Thin Films Department, Surface Technology Division, Korea Institute of Materials Science , 797 Changwondaero, Sungsan-Gu, Changwon, Gyeongnam 642-831, Republic of Korea
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6
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Chen G, Yang W, Zhang B. Synthesis and optical and electrochemical properties of a bispyrimidinium-dibenzothiophene- S , S -dioxide - based cationic conjugated polymer. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Chen G, Liu S, Xu J, He R, He Z, Wu HB, Yang W, Zhang B, Cao Y. Dibenzothiophene-S,S-dioxide and Bispyridinium-Based Cationic Polyfluorene Derivative as an Efficient Cathode Modifier for Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4778-4787. [PMID: 28106362 DOI: 10.1021/acsami.6b15796] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A novel n-type conjugated polymer containing dibenzothiophene-S,S-dioxide (FSO), bispyridinium, and fluorene scaffolds in the backbone (PFSOPyCl) was synthesized and used in the cathode interfacial layers (CILs) of conventional polymer solar cells (PSCs). The high electron affinities and large planar structures of the FSO and bispyridinium units endowed this polymer with good energy level alignments with [6,6]-phenyl-C71 butyric acid methyl ester (PC71BM) and metal cathode, and excellent electron transport and extraction properties. Polymer solar cells (PSCs) based on the poly[N-9″-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT):PC71BM system with PFSOPyCl CIL exhibited simultaneous enhancement in open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF), while the power conversion efficiency increased from 5.47% to 6.79%, relative to the bare Al device. Besides, PSC based on the poly[4,8-bis(2-ethylhexyloxyl)benzo[1,2-b:4,5-b']dithio-phene-2,6-diyl-alt-ethylhexyl-3-fluorothithieno [3,4-b]thiophene-2-carboxylate-4,6-diyl] (PTB7):PC71BM system achieved a PCE of 8.43% when using PFSOPyCl as CIL. Hence, PFSOPyCl is a promising candidate CIL for PSCs.
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Affiliation(s)
- Guiting Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Sha Liu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Jin Xu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Ruifeng He
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Zhicai He
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Hong-Bin Wu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Wei Yang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Bin Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University , Shenzhen 518060, China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
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8
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Kennes K, Baeten Y, Stappert S, Müllen K, Hofkens J, Van der Auweraer M, Vosch T, Fron E. Synthesis, Ensemble, and Single Molecule Characterization of a Diphenyl-Acetylene Linked Terrylenediimide Dimer. J Phys Chem B 2016; 120:2333-42. [PMID: 26854818 DOI: 10.1021/acs.jpcb.5b10651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and the photophysical characterization at the ensemble and single molecule level of a terrylenediimide (TDI) dimer are reported. The spectroscopic experimental data are compared with those obtained for the corresponding model compound TDI. Steady-state and ps time-correlated single photon counting have shown that both chromophores in the TDI dimer are in the weak coupling regime allowing their interaction by Förster resonance energy transfer. Femtosecond transient absorption experiments showed an excitation power dependence of the fluorescence decay, which could indicate the occurrence of singlet-singlet annihilation. Single molecule intensity traces were investigated for the TDI dimer and suggested two intensity levels. For both intensity levels several parameters among which emission maximum, fluorescence decay times, antibunching, blinking off-times and rate of dark state formation were compared. The blinking analysis revealed that the yield of dark state formation is an order of magnitude higher when the two chromophores are still active compared to the case where one is photobleached. The off-times remain however similar.
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Affiliation(s)
- Koen Kennes
- Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Yannick Baeten
- Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Sebastian Stappert
- Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - Johan Hofkens
- Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Mark Van der Auweraer
- Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Tom Vosch
- Nano-Science Center/Department of Chemistry, University of Copenhagen , Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Eduard Fron
- Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
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