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Kim SG, Le TH, de Monfreid T, Goubard F, Bui TT, Park NG. Capturing Mobile Lithium Ions in a Molecular Hole Transporter Enhances the Thermal Stability of Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007431. [PMID: 33604974 DOI: 10.1002/adma.202007431] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/05/2021] [Indexed: 06/12/2023]
Abstract
A thermally stable perovskite solar cell (PSC) based on a new molecular hole transporter (MHT) of 1,3-bis(5-(4-(bis(4-methoxyphenyl) amino)phenyl)thieno[3,2-b]thiophen-2-yl)-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione (coded HL38) is reported. Hole mobility of 1.36 × 10-3 cm2 V-1 s-1 and glass transition temperature of 92.2 °C are determined for the HL38 doped with lithium bis(trifluoromethanesulfonyl)imide and 4-tert-butylpyridine as additives. Interface engineering with 2-(2-aminoethyl)thiophene hydroiodide (2-TEAI) between the perovskite and the HL38 improves the power conversion efficiency (PCE) from 19.60% (untreated) to 21.98%, and this champion PCE is even higher than that of the additive-containing 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-MeOTAD)-based device (21.15%). Thermal stability testing at 85 °C for over 1000 h shows that the HL38-based PSC retains 85.9% of the initial PCE, while the spiro-MeOTAD-based PSC degrades unrecoverably from 21.1% to 5.8%. Time-of-flight secondary-ion mass spectrometry studies combined with Fourier transform infrared spectroscopy reveal that HL38 shows lower lithium ion diffusivity than spiro-MeOTAD due to a strong complexation of the Li+ with HL38, which is responsible for the higher degree of thermal stability. This work delivers an important message that capturing mobile Li+ in a hole-transporting layer is critical in designing novel MHTs for improving the thermal stability of PSCs. In addition, it also highlights the impact of interface design on non-conventional MHTs.
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Affiliation(s)
- Seul-Gi Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, Korea
| | - Thi Huong Le
- CY Cergy Paris Université, LPPI, Cergy, F-95000, France
| | | | | | | | - Nam-Gyu Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, Korea
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Xu Z, Pan F, Sun C, Hong S, Chen S, Yang C, Zhang Z, Liu Y, Russell TP, Li Y, Wang D. Understanding the Morphology of High-Performance Solar Cells Based on a Low-Cost Polymer Donor. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9537-9544. [PMID: 32013381 DOI: 10.1021/acsami.9b22666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A low-cost and high-performance bulk heterojunction (BHJ) solar cell comprising an emerging polymer donor, poly[(thiophene)-alt-(6,7-difluoro-2-(2-hexyldecyloxy)quinoxaline)] (PTQ10), shows an efficiency of 12.7%. To improve the performance of the solar cells, a better understanding of the structure-property relationships of the PTQ10-based devices is crucial. Here, we fabricate PTQ10/nonfullerene and fullerene BHJ devices, including PTQ10/IDIC, PTQ10/ITIC, and PTQ10/PC71BM, processed with or without thermal annealing and additive and provide detailed descriptions of the relationships between the morphology and performance. PTQ10 is found to be highly miscible with nonfullerene IDIC and ITIC acceptors and poorly miscible with fullerene PC71BM acceptors. Thermal annealing promotes the crystallization of PTQ10 and phase separation of all PTQ10/IDIC, PTQ10/ITIC, and PTQ10/PC71BM devices, leading to an increased power conversion efficiencies (PCEs) of the PTQ10/IDIC and PTQ10/ITIC devices but a decreased PCE of PTQ10/PC71BM devices with 1,8-di-iodooctane (DIO) additive. Without thermal annealing, DIO greatly improves the morphology of PTQ10/PC71BM, leading to a higher PCE. The results show that the degree of phase separation and ordering in the PTQ10-based devices significantly influences device performance. The morphology-property correlations demonstrated will assist in the rational design of these low-cost polymer donor-based solar cells to achieve even higher performance.
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Affiliation(s)
- Zhengqing Xu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Fei Pan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chenkai Sun
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Song Hong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Shanshan Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering , Chongqing University , Chongqing 400044 , China
- Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , South Korea
| | - Changduk Yang
- Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , South Korea
| | - Zhiguo Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yao Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Thomas P Russell
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , China
- Polymer Science and Engineering Department , University of Massachusetts Amherst , Massachusetts 01003 , United States
- Materials Sciences Division , Lawrence Berkeley National Laboratory , 1 Cyclotron Road , Berkeley , California 94720 , United States
| | - Yongfang Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Dong Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , China
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Lee J, Park HJ, Joo JM, Hwang DH. Synthesis and Characterization of DPP-Based Conjugated Polymers via Dehydrogenative Direct Alkenylation Polycondensation. Macromol Res 2019. [DOI: 10.1007/s13233-019-7070-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Wang X, Jiang B, Du C, Ren X, Duan Z, Wang H. Fluorinated dithienyl-diketopyrrolopyrrole: a new building block for organic optoelectronic materials. NEW J CHEM 2019. [DOI: 10.1039/c9nj04060a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of monofluorinated and difluorinated dithienyl-DPP was reported using a stepwise synthesis method starting from the preparation of pyrrolinone followed by condensation with methyl thiophene-2-carbimidate derivatives.
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Affiliation(s)
- Xiaohua Wang
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
| | - Bin Jiang
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
| | - Chenchen Du
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
| | - Xiaolei Ren
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
| | - Zhiming Duan
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
| | - Hongyu Wang
- Department of Chemistry
- College of Science, and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
- P. R. China
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Ren X, Wang X, Sun Y, Chi X, Mangel D, Wang H, Sessler JL. Amidinium–carboxylate salt bridge mediated proton-coupled electron transfer in a donor–acceptor supramolecular system. Org Chem Front 2019. [DOI: 10.1039/c8qo01408f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A supramolecular polymer that allows for intrapolymer proton-coupled photoinduced electron transfer was constructed by means of amidinium-carboxylate salt bridges.
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Affiliation(s)
- Xiaolei Ren
- Department of Chemistry
- College of Science
- and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
| | - Xiaohua Wang
- Department of Chemistry
- College of Science
- and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
| | - Yuren Sun
- Department of Chemistry
- College of Science
- and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
| | - Xiaodong Chi
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - Daniel Mangel
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - Hongyu Wang
- Department of Chemistry
- College of Science
- and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
| | - Jonathan L. Sessler
- Department of Chemistry
- College of Science
- and Center for Supramolecular Chemistry & Catalysis
- Shanghai University
- Shanghai
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Lee C, Kim J, Moon Y, Kim D, Song DI, Kim H, Kim Y. A Soluble Diketopyrrolopyrrole Derivative and Its Applications for Organic Phototransistors. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800392] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chulyeon Lee
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Joonwoo Kim
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Yejin Moon
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Dohan Kim
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Dong-Ik Song
- Polymer Rheology Laboratory, Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Hwajeong Kim
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
- Priority Research Center, Research Institute of Environmental Science &Technology; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Youngkyoo Kim
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
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Du C, Fu S, Ren X, Wang X, Wang Z, Zhou J, Wang H. A diketopyrrolopyrrole-based fluorescent probe for investigating mitochondrial zinc ions. NEW J CHEM 2018. [DOI: 10.1039/c7nj04940d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report a diketopyrrolopyrrole-based fluorescent probe DPP-Mito, which is low toxicity and mitochondrial-specific localization and could monitor the changes in the intracellular Zn2+ concentrations.
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Affiliation(s)
- Chenchen Du
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
| | - Shibo Fu
- Department of Urology
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai
- P. R. China
| | - Xiaolei Ren
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
| | - Xiaohua Wang
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
| | - Zhong Wang
- Department of Urology
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai
- P. R. China
| | - Juan Zhou
- Department of Urology
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai
- P. R. China
| | - Hongyu Wang
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
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Chen M, Du C, Ren X, Yi M, Yi J, Chen C, Liu F, Li M, Ma C, Wang H. Phthalimide and Naphthalimide end-Capped Diketopyrrolopyrrole for Organic Photovoltaic Applications. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ming Chen
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
| | - Chenchen Du
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
| | - Xiaolei Ren
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
| | - Maoheng Yi
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
- Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences, 398 Ruo Shui Road, SEID SIP; Suzhou Jiangsu 215123 China
| | - Jinduo Yi
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
- No. 2 High School Affiliated to East China Normal University, Zizhu, 350 Zifeng Road, Minhang District; Shanghai 200241 China
| | - Chufeng Chen
- No. 2 High School Affiliated to East China Normal University, Zizhu, 350 Zifeng Road, Minhang District; Shanghai 200241 China
| | - Feng Liu
- Department of Physics and Astronomy; Shanghai Jiao Tong University, 800 Dongchuan Road; Shanghai 200240 China
| | - Minjie Li
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
| | - Changqi Ma
- Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences, 398 Ruo Shui Road, SEID SIP; Suzhou Jiangsu 215123 China
| | - Hongyu Wang
- Department of Chemistry, College of Science; Shanghai University, 99 Shangda Road; Shanghai 200444 China
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Rational design of π-bridges for ambipolar DPP-RH-based small molecules in organic photovoltaic cells. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.10.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Tang A, Zhan C, Yao J, Zhou E. Design of Diketopyrrolopyrrole (DPP)-Based Small Molecules for Organic-Solar-Cell Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1600013. [PMID: 27859743 DOI: 10.1002/adma.201600013] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/11/2016] [Indexed: 06/06/2023]
Abstract
After the first report in 2008, diketopyrrolopyrrole (DPP)-based small-molecule photovoltaic materials have been intensively explored. The power conversion efficiencies (PCEs) for the DPP-based small-molecule donors have been improved up to 8%. Furthermore, through judicious structure modification, DPP-based small molecules can also be converted into electron-acceptor materials, and, recently, some exciting progress has been achieved. The development of DPP-based photovoltaic small molecules is summarized here, and the photovoltaic performance is discussed in relation to structural modifications, such as the variations of donor-acceptor building blocks, alkyl substitutions, and the type of conjugated bridges, as well as end-capped groups. It is expected that the discussion will provide a guideline in the exploration of novel and promising DPP-containing photovoltaic small molecules.
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Affiliation(s)
- Ailing Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Chuanlang Zhan
- Beijing National Laboratory of Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jiannian Yao
- Beijing National Laboratory of Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Erjun Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- Yangtze River Delta Academy of Nanotechnology and Industry Development Research, Jiaxing, Zhejiang Province, 314000, P. R. China
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Lu TJ, Lin PH, Lee KM, Liu CY. End-Capping Groups for Small-Molecule Organic Semiconducting Materials: Synthetic Investigation and Photovoltaic Applications through Direct C-H (Hetero)arylation. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Te-Jui Lu
- Department of Chemical and Materials Engineering; National Central University; Jhongli District 320, R.O.C. Taoyuan City Taiwan320, R.O.C
| | - Po-Han Lin
- Department of Chemical and Materials Engineering; National Central University; Jhongli District 320, R.O.C. Taoyuan City Taiwan320, R.O.C
| | - Kun-Mu Lee
- Department of Chemical and Materials Engineering; National Central University; Jhongli District 320, R.O.C. Taoyuan City Taiwan320, R.O.C
- Research Center for New Generation Photovoltaics (RCNPV); National Central University; Jhongli District Taoyuan City Taiwan320, R.O.C
| | - Ching-Yuan Liu
- Department of Chemical and Materials Engineering; National Central University; Jhongli District 320, R.O.C. Taoyuan City Taiwan320, R.O.C
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Turrisi R, Mascheroni L, Sassi M, Rooney M, Buccheri N, Ruffo R, Facchetti A, Beverina L. Synthesis and Characterization of Squaraine-Based Photocrosslinkable Resists for Bulk Heterojunction Solar Cells. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600552] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Riccardo Turrisi
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Luca Mascheroni
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Mauro Sassi
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Myles Rooney
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Nunzio Buccheri
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Riccardo Ruffo
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
| | - Antonio Facchetti
- Department of Chemistry and the Materials Research Centre; Northwestern University; North Sheridan Road 60208 Evanston Illinois USA
- Polyera Corporation; 8045 Lamon Avenue Skokie Illinois 60077 USA
| | - Luca Beverina
- Department of Materials Science; University of Milano Bicocca; Via Roberto Cozzi 55 20125, Italy Milano
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14
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Lee H, Han H, Jeong J, Kim H, Song DI, Kim Y. Broadband-Solubility Diketopyrrolopyrrole Derivative with Both Polar Cyano and Nonpolar Alkyl Groups for Stable Organic Photosensors and Diffusion-Processed Organic Solar Cells. ChemistrySelect 2016. [DOI: 10.1002/slct.201600291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hyena Lee
- Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of; Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Hyemi Han
- Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of; Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Jaehoon Jeong
- Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of; Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Hwajeong Kim
- Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of; Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
- Research Institute of Advanced Energy Technology; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Dong-Ik Song
- Department of Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Youngkyoo Kim
- Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of; Applied Chemical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
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15
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Jiang B, Du CC, Li MJ, Gao K, Kou L, Chen M, Liu F, Russell TP, Wang H. Synthesis of fluorinated diphenyl-diketopyrrolopyrrole derivatives as new building blocks for conjugated copolymers. Polym Chem 2016. [DOI: 10.1039/c6py00346j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of conjugated copolymers with an identical backbone (PBDT-DPP) but different fluorination numbers and positions were synthesized, and the impact of fluorine atoms on the structure–property-device performance was comprehensively investigated.
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Affiliation(s)
- Bin Jiang
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Chen Chen Du
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Min Jie Li
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Ke Gao
- Materials Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Li Kou
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Ming Chen
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Feng Liu
- Materials Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Thomas P. Russell
- Materials Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
- Department of Polymer Science and Engineering
| | - Hongyu Wang
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
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16
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Zhou W, Xie Y, Hu X, Zhang L, Meng X, Zhang Y, Ma W, Chen Y. Surface treatment by binary solvents induces the crystallization of a small molecular donor for enhanced photovoltaic performance. Phys Chem Chem Phys 2016; 18:735-42. [PMID: 26660911 DOI: 10.1039/c5cp05644f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface treatment of p-DTS(FBTTh2)2:PC71BM films with binary solvents of methanol and 1-chloronaphthalene enhanced the PCE from 2.4% to 6.5%.
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Affiliation(s)
- Weihua Zhou
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
- College of Chemistry/Jiangxi Provincial Key Laboratory of New Energy Chemistry
| | - Yuanpeng Xie
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
| | - Xiaotian Hu
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
| | - Lin Zhang
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
| | - Xiangchuan Meng
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
| | - Yong Zhang
- College of Chemistry/Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Yiwang Chen
- School of Material Science and Engineering/Institute of Polymers
- Nanchang University
- Nanchang 330031
- China
- College of Chemistry/Jiangxi Provincial Key Laboratory of New Energy Chemistry
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17
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Long G, Wu B, Yang X, Kan B, Zhou YC, Chen LC, Wan X, Zhang HL, Sum TC, Chen Y. Enhancement of Performance and Mechanism Studies of All-Solution Processed Small-Molecule based Solar Cells with an Inverted Structure. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21245-21253. [PMID: 26352703 DOI: 10.1021/acsami.5b05317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Both solution-processed polymers and small molecule based solar cells have achieved PCEs over 9% with the conventional device structure. However, for the practical applications of photovoltaic technology, further enhancement of both device performance and stability are urgently required, particularly for the inverted structure devices, since this architecture will probably be most promising for the possible coming commercialization. In this work, we have fabricated both conventional and inverted structure devices using the same small molecular donor/acceptor materials and compared the performance of both device structures, and found that the inverted structure based device gave significantly improved performance, the highest PCE so far for inverted structure based device using small molecules as the donor. Furthermore, the inverted device shows a remarkable stability with almost no obvious degradation after three months. Systematic device physics and charge generation dynamics studies, including optical simulation, light-intensity-dependent current-voltage experiments, photocurrent density-effective voltage analyses, transient absorption measurements, and electrical simulations, indicate that the significantly enhanced performance using inverted device is ascribed to the increasing of Jsc compared to the conventional device, which in turn is mainly attributed to the increased absorption of photons in the active layers, rather than the reduced nongeminate recombination.
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Affiliation(s)
- Guankui Long
- State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Bo Wu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
- Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE), 1 Create Way, Singapore 138602, Singapore
| | - Xuan Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Bin Kan
- State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Ye-Cheng Zhou
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou, 730000, China
| | - Li-Chuan Chen
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou, 730000, China
| | - Xiangjian Wan
- State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou, 730000, China
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
| | - Yongsheng Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin, 300071, China
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18
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Dou L, Liu Y, Hong Z, Li G, Yang Y. Low-Bandgap Near-IR Conjugated Polymers/Molecules for Organic Electronics. Chem Rev 2015; 115:12633-65. [PMID: 26287387 DOI: 10.1021/acs.chemrev.5b00165] [Citation(s) in RCA: 531] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Letian Dou
- Department of Materials Science and Engineering, and ‡California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
| | - Yongsheng Liu
- Department of Materials Science and Engineering, and ‡California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
| | - Ziruo Hong
- Department of Materials Science and Engineering, and ‡California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
| | - Gang Li
- Department of Materials Science and Engineering, and ‡California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
| | - Yang Yang
- Department of Materials Science and Engineering, and ‡California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
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19
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Wang H, Chen M, Jiang B, Tong W, Qian Q, Lin K, Liu F. Solution-Processable Platinum-Acetylide-based Small Molecular Bulk Heterojunction Solar Cells. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Gao K, Li L, Lai T, Xiao L, Huang Y, Huang F, Peng J, Cao Y, Liu F, Russell TP, Janssen RAJ, Peng X. Deep Absorbing Porphyrin Small Molecule for High-Performance Organic Solar Cells with Very Low Energy Losses. J Am Chem Soc 2015; 137:7282-5. [DOI: 10.1021/jacs.5b03740] [Citation(s) in RCA: 402] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ke Gao
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Lisheng Li
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Tianqi Lai
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Liangang Xiao
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Yuan Huang
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Fei Huang
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Junbiao Peng
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Yong Cao
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Feng Liu
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Thomas P. Russell
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Polymer
Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - René A. J. Janssen
- Molecular
Materials and Nanosystems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Xiaobin Peng
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
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21
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Shao W, Liang L, Xiang X, Li HJ, Zhao FG, Li WS. Changing to Poly(rod-coil) Polymers: a Promising Way for an Optoelectronic Compound to Improve Its Film Formation. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Sun K, Xiao Z, Lu S, Zajaczkowski W, Pisula W, Hanssen E, White JM, Williamson RM, Subbiah J, Ouyang J, Holmes AB, Wong WWH, Jones DJ. A molecular nematic liquid crystalline material for high-performance organic photovoltaics. Nat Commun 2015; 6:6013. [PMID: 25586307 PMCID: PMC4309440 DOI: 10.1038/ncomms7013] [Citation(s) in RCA: 218] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/01/2014] [Indexed: 02/07/2023] Open
Abstract
Solution-processed organic photovoltaic cells (OPVs) hold great promise to enable roll-to-roll printing of environmentally friendly, mechanically flexible and cost-effective photovoltaic devices. Nevertheless, many high-performing systems show best power conversion efficiencies (PCEs) with a thin active layer (thickness is ~100 nm) that is difficult to translate to roll-to-roll processing with high reproducibility. Here we report a new molecular donor, benzodithiophene terthiophene rhodanine (BTR), which exhibits good processability, nematic liquid crystalline behaviour and excellent optoelectronic properties. A maximum PCE of 9.3% is achieved under AM 1.5G solar irradiation, with fill factor reaching 77%, rarely achieved in solution-processed OPVs. Particularly promising is the fact that BTR-based devices with active layer thicknesses up to 400 nm can still afford high fill factor of ~70% and high PCE of ~8%. Together, the results suggest, with better device architectures for longer device lifetime, BTR is an ideal candidate for mass production of OPVs.
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Affiliation(s)
- Kuan Sun
- 1] School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia [2] Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore [3] Department of Renewable Energy, School of Power Engineering, Chongqing University, 174 Shazhengjie, Shapingba, Chongqing 400044, China
| | - Zeyun Xiao
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Shirong Lu
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | | | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Eric Hanssen
- Advanced Microscopy Facility, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jonathan M White
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Rachel M Williamson
- MX Beamlines, Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jianyong Ouyang
- Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore
| | - Andrew B Holmes
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Wallace W H Wong
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - David J Jones
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
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23
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Du Z, Chen W, Qiu M, Chen Y, Wang N, Wang T, Sun M, Yu D, Yang R. Utilizing alkoxyphenyl substituents for side-chain engineering of efficient benzo[1,2-b:4,5-b′]dithiophene-based small molecule organic solar cells. Phys Chem Chem Phys 2015; 17:17391-8. [DOI: 10.1039/c5cp02632f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new alkoxyphenyl substituted benzo[1,2-b:4,5-b′]dithiophene-based small molecule was designed and synthesized for solution-processed organic solar cells.
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Affiliation(s)
- Zhengkun Du
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Weichao Chen
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Meng Qiu
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Yanhua Chen
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Ning Wang
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Ting Wang
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Mingliang Sun
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- China
| | - Donghong Yu
- Department of Chemistry and Bioscience
- Aalborg University
- Aalborg
- Denmark
- Sino-Danish Centre for Education and Research (SDC)
| | - Renqiang Yang
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
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24
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Xu X, Ji Y, Du C, Hou T, Li Y. The prediction of the morphology and PCE of small molecular organic solar cells. RSC Adv 2015. [DOI: 10.1039/c5ra12318f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The predicted morphology, domain size, PCE (power conversion efficiency) of Small Molecular Organic Solar Cells.
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Affiliation(s)
- Xiaojuan Xu
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Chunmiao Du
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Tingjun Hou
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
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25
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Jadhav T, Misra R, Biswas S, Sharma GD. Bulk heterojunction organic solar cells based on carbazole–BODIPY conjugate small molecules as donors with high open circuit voltage. Phys Chem Chem Phys 2015; 17:26580-8. [DOI: 10.1039/c5cp04807a] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The power conversion efficiency of an optimized3a:PC71BM active layer based device is 5.05%.
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Affiliation(s)
- Thaksen Jadhav
- Department of Chemistry
- Indian Institute of Technology Indore
- India
| | - Rajneesh Misra
- Department of Chemistry
- Indian Institute of Technology Indore
- India
| | - S. Biswas
- Department of Physics
- LNMIIT
- Jaipur
- India
| | - Ganesh D. Sharma
- R and D Center for Science and Engineering
- JEC Group of Colleges
- Jaipur
- India
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26
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Kim YJ, Lee GB, Jeon CW, Kim YH, Chung DS, Park CE. A push–pull organic semiconductor with efficient intramolecular charge transfer for solution-processed small molecule solar cells. RSC Adv 2015. [DOI: 10.1039/c4ra10923f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
DMF-BP-T-MMN exhibits superior intramolecular charge transfer and excellent solar cell performance with a PCE of 3.40%.
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Affiliation(s)
- Yu Jin Kim
- POSTECH Organic Electronics Laboratory
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang
- Republic of Korea
| | - Gi Back Lee
- School of Materials Science & Engineering and Research Institute for Green Energy Convergence Technology (REGET)
- Gyeongsang National University
- Jin-ju
- Republic of Korea
| | - Chan Woo Jeon
- Department of Chemistry & ERI
- Gyeongsang National University
- Jin-ju
- Republic of Korea
| | - Yun-Hi Kim
- Department of Chemistry & ERI
- Gyeongsang National University
- Jin-ju
- Republic of Korea
| | - Dae Sung Chung
- School of Chemical Engineering and Material Science Chung-Ang University
- Seoul
- Republic of Korea
| | - Chan Eon Park
- POSTECH Organic Electronics Laboratory
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang
- Republic of Korea
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27
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Lee DC, Brownell LV, Yan L, You W. Morphological effects on the small-molecule-based solution-processed organic solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15767-15773. [PMID: 25166930 DOI: 10.1021/am5027538] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report a proof-of-concept study on solution-processed organic solar cells (OSCs) based on [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) and structurally compact donor molecules which have dithiophene-phenazine-dithiophene (TH-P) and dithiophene-quinoxaline-dithiophene (TH-Q) configurations with decyloxy and methyl side groups, respectively. These molecules formed one-dimensional fibers through self-assembly via weak nonbonding interactions such as π-π and van der Waals interactions even during a fast solvent removal process such as spin-casting. Photophysical and thermal properties of the new donor molecules were characterized with UV-vis absorption and fluorescence spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. The electrochemical data determined experimentally were correlated well with theoretical evaluations. The fibers from the two donor molecules showed distinct morphological differences, allowing for in-depth investigations into their influence on the OSC performance. A continuous three-dimensional network of endless one-dimensional nanofibers, with a width of 300-400 nm, were formed from TH-P regardless of the presence of PC61BM, affording spontaneous nanoscale phase separation that facilitates a large donor/acceptor interfacial area. Bulk (BHJ) and planar heterojunctions (PHJ) from TH-P/PC61BM showed a power conversion efficiency (PCE) of 0.38% and 0.30%, respectively, under optimum device conditions. Post thermal annealing led to the increased domain size and a major decrease in Jsc. Meanwhile, shorter, more rigid needles with a large thickness variation were formed from TH-Q. A continuous network of TH-Q was obtained by spin-coating only in the presence of PC61BM, and the PCE of TH-Q/PC61BM BHJ was found to be 0.36%. However, the PHJ showed poor device performance due to TH-Q's inability to form a continuous film by spin-coating. The present study suggests a basic molecular architecture to drive one-dimensional assembly and demonstrates the significance of fibrillation for small-molecule-based OSCs.
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Affiliation(s)
- Dong-Chan Lee
- Department of Chemistry, University of Nevada, Las Vegas , 4505 S. Maryland Parkway, Box 454003, Las Vegas, Nevada 89154-4003, United States
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28
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Xiao Z, Sun K, Subbiah J, Ji S, Jones DJ, Wong WWH. Hydrogen bonding in bulk heterojunction solar cells: a case study. Sci Rep 2014; 4:5701. [PMID: 25027678 PMCID: PMC4099981 DOI: 10.1038/srep05701] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 06/24/2014] [Indexed: 01/22/2023] Open
Abstract
Small molecules with dithieno[3,2-b;2',3'-d]thiophene as central building block and octyl cyanoacetate and octyl cyanoacetamide as different terminal building blocks have been designed and synthesized. The amide containing small molecule can form intermolecular hydrogen bonding between N-H...O = C of the amide group. The photovoltaic properties and active layer morphologies of the two molecules in bulk heterojunction solar cells are compared to study the influence of hydrogen bonding on the active layer morphology. New methanofullerene compound containing amide group has also been synthesized and compared with conventional fullerene electron acceptors.
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Affiliation(s)
- Zeyun Xiao
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Kuan Sun
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Shaomin Ji
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - David J. Jones
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Wallace W. H. Wong
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
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29
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Du Z, Chen Y, Chen W, Qiao S, Wen S, Liu Q, Zhu D, Sun M, Yang R. Development of New Two-Dimensional Small Molecules Based on Benzodifuran for Efficient Organic Solar Cells. Chem Asian J 2014; 9:2621-7. [DOI: 10.1002/asia.201402467] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Indexed: 11/08/2022]
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30
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Kim YJ, Back JY, Kim SO, Jeon CW, Park CE, Kim YH. Efficient Diketopyrrolopyrrole-Based Small-Molecule Bulk-Heterojunction Solar Cells with Different Electron-Donating End-Groups. Chem Asian J 2014; 9:2505-13. [DOI: 10.1002/asia.201402223] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/14/2014] [Indexed: 11/10/2022]
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31
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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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32
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Yu QC, Fu WF, Wan JH, Wu XF, Shi MM, Chen HZ. Evaluation of heterocycle-modified pentathiophene-based molecular donor materials for solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5798-5809. [PMID: 24689752 DOI: 10.1021/am5006223] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two novel solution-processable acceptor-donor-acceptor (A-D-A)-structured organic small molecules with diketopyrrolopyrrole (DPP) as terminal acceptor units and pentathiophene (PTA) or pyrrole-modified pentathiophene (NPTA) as the central donor unit, namely, DPP2(PTA) and DPP2(NPTA), were designed and synthesized. We examined the effects of changing the central bridging heteroatoms of the five-ring-fused thienoacene core identity from sulfur [DPP2(PTA)] to nitrogen [DPP2(NPTA)] in the small-molecule donor material. Replacement of the bridging atom with a different electronic structure has a visible effect on both the optical and electrical properties: DPP2(NPTA), which contains much more electron-rich pyrrole in the central thienoacene unit, possesses red-shifted absorption and a higher HOMO level relative to DPP2(PTA) with the less electron-rich thiophene in the same position. More importantly, substitution of the bridging atoms results in a change of the substituting alkyl chains due to the nature of the heteroatoms, which significantly tailored the crystallization behavior and the ability to form an interpenetrating network in thin-film blends with an electron acceptor. Compared to DPP2(PTA) with no alkyl chain substituting on the central sulfur atom of the PTA unit, DPP2(NPTA) exhibits improved crystallinity and better miscibility with PC71BM probably because of a dodecyl chain on the central nitrogen atom of the NPTA unit. These features endow the DPP2(NPTA)/PC71BM blend film higher hole mobility and better donor/acceptor interpenetrating network morphology. Optimized photovoltaic device fabrication based on DPP2(NPTA)/PC71BM (1.5:1, w/w) has resulted in an average power conversion efficiency (PCE) as high as 3.69% (the maximum PCE was 3.83%). This study demonstrates that subtle changes and tailoring of the molecular structure, such as simply changing the bridging heteroatom in the thienoacene unit in D/A-type small molecules, can strongly affect the physical properties that govern their photovoltaic performances.
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Affiliation(s)
- Qing-Cai Yu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University , Hangzhou 310012, People's Republic of China
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33
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Zhang S, Wang X, Tang A, Huang J, Zhan C, Yao J. Tuning morphology and photovoltaic properties of diketopyrrolopyrrole-based small-molecule solar cells by taloring end-capped aromatic groups. Phys Chem Chem Phys 2014; 16:4664-71. [DOI: 10.1039/c3cp54548b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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