151
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Dang D, Fan J, Wang X, Xiao M, Shi J, Zhou P, Duan X, Lei G, Liu Y, Zhu W. Influence of the fused hetero-aromatic centers on molecular conformation and photovoltaic performance of solution-processed organic solar cells. NEW J CHEM 2015. [DOI: 10.1039/c4nj01617c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Tuning the thiophene-fused building centers is a facile way to alter the molecular conformation and enhance photovoltaic performance.
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152
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Malytskyi V, Simon JJ, Patrone L, Raimundo JM. Thiophene-based push–pull chromophores for small molecule organic solar cells (SMOSCs). RSC Adv 2015. [DOI: 10.1039/c4ra11664j] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A concise review on small molecules organic solar cells based on π-conjugated thiophene scaffolds.
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Affiliation(s)
- Volodymyr Malytskyi
- Centre Interdisciplinaire de Nanoscience de Marseille
- Aix-Marseille Université
- CNRS, CINaM UMR 7325
- 13288 Marseille Cedex 09
- France
| | - Jean-Jacques Simon
- Institut Matériaux Microélectronique Nanosciences de Provence
- Aix-Marseille Université
- CNRS, Université de Toulon, IM2NP UMR 7334
- Domaine Universitaire de St Jérôme
- Marseille Cedex 20
| | - Lionel Patrone
- Institut Matériaux Microélectronique Nanosciences de Provence
- Aix-Marseille Université
- CNRS, Université de Toulon, IM2NP UMR 7334
- Domaine Universitaire de St Jérôme
- Marseille Cedex 20
| | - Jean-Manuel Raimundo
- Centre Interdisciplinaire de Nanoscience de Marseille
- Aix-Marseille Université
- CNRS, CINaM UMR 7325
- 13288 Marseille Cedex 09
- France
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153
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Huang X, Zhang G, Zhou C, Liu S, Zhang J, Ying L, Huang F, Cao Y. Tailoring π-conjugated dithienosilole–benzothiadiazole oligomers for organic solar cells. NEW J CHEM 2015. [DOI: 10.1039/c4nj02350a] [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
This investigation provides a distinctive view to observe how the relevant optoelectronic properties of oligomers change according to their molecular sizes.
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Affiliation(s)
- Xuelong Huang
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Guichuan Zhang
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Cheng Zhou
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Shengjian Liu
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Jie Zhang
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Lei Ying
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Fei Huang
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Yong Cao
- State Key Laboratory of Luminescent Materials and Devices, and Institute of Polymer Optoelectronic Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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154
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Liu W, Tang A, Chen J, Wu Y, Zhan C, Yao J. Photocurrent enhancement of BODIPY-based solution-processed small-molecule solar cells by dimerization via the meso position. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22496-22505. [PMID: 25427221 DOI: 10.1021/am506585u] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Three 4,4-difluoro-4-bora-3a,4a-diaza-s-indancene (BODIPY)-based small molecule donors H-T-BO, Br-T-BO, and DIMER were synthesized and fully characterized. Although modification at the meso position has a subtle influence on the light-harvesting ability, energy levels, and phase sizes, it has a striking effect on the packing behavior in solid film as two-dimension grazing incidence X-ray diffraction (2D GIXRD) and X-ray diffraction (XRD) confirm. Br-T-BO exhibits better packing ordering than H-T-BO in pristine film, which is beneficial from reinforced intermolecular interaction from halogen atoms. However, when [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) is blended, no diffraction patterns corresponding to the monomeric donor can be seen from the XRD data and both H-T-BO- and Br-T-BO-based blend films give a slightly blue-shifting absorption peak with respect to their neat ones, both of which imply destruction of the crystalline structure. As for DIMER, the enhancement of the intermolecular interaction arises not only from the expansion of the backbone but the "steric pairing effect" brought on by its twisted structure. When blended with PC71BM, the diffraction patterns of DIMER are, however, kept well and the absorption peak position remains unchanged, which indicates the ordered packing of DIMER is held well in blend film. In coincidence with the fact that packing ordering improves from H-T-BO to Br-T-BO and DIMER in pristine films and the ordered packing of DIMER even in blend film, DIMER-based devices show the highest and most balanced hole/electron mobility of 1.16 × 10(-3)/0.90 × 10(-3) cm(2) V(-1) s(-1)with respect to Br-T-BO (4.71 × 10(-4)/2.09 × 10(-4) cm(2) V(-1) s(-1)) and H-T-BO (4.27 × 10(-5)/1.00 × 10(-5) cm(2) V(-1) s(-1)) based ones. The short-circuit current density of the three molecule-based cells follows the same trend from H-T-BO (6.80) to Br-T-BO (7.62) and then to DIMER (11.28 mA cm(-2)). Finally, the H-T-BO-, Br-T-BO-, and DIMER-based optimal device exhibits a power conversion efficiency of 1.56%, 1.96%, and 3.13%, respectively.
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Affiliation(s)
- Wenxu Liu
- Beijing National Laboratory of Molecular Science, §CAS Key Laboratory of Photochemistry, Institute of Chemistry, and ∥State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Chinese Academy of Sciences , Beijing 100190, P. R. China
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155
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Dang D, Xiao M, Zhou P, Zhong J, Fan J, Su N, Xiong W, Yang C, Wang Q, Wang Y, Pei Y, Yang R, Zhu W. Tuning the Isomeric Fused Heteroaromatic Core of Small Donor-Acceptor Molecules to Alter Their Crystalline Nature and Enhance Photovoltaic Performance. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403350] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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156
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Ni W, Li M, Wan X, Zuo Y, Kan B, Feng H, Zhang Q, Chen Y. A new oligobenzodithiophene end-capped with 3-ethyl-rhodanine groups for organic solar cells with high open-circuit voltage. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5220-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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157
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Love JA, Collins SD, Nagao I, Mukherjee S, Ade H, Bazan GC, Nguyen TQ. Interplay of solvent additive concentration and active layer thickness on the performance of small molecule solar cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7308-7316. [PMID: 25244408 DOI: 10.1002/adma.201402403] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/05/2014] [Indexed: 06/03/2023]
Abstract
A relationship between solvent additive concentration and active layer thickness in small-molecule solar cells is investigated. Specifically, the additive concentration must scale with the amount of semiconductor material and not as absolute concentration in solution. Devices with a wide range of active layers with thickness up to 200 nm can readily achieve efficiencies close to 6% when the right concentration of additive is used.
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Affiliation(s)
- John A Love
- Materials Department, University of California, Santa Barbara, CA, 93106, USA
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158
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Browning C, Hudson JM, Reinheimer EW, Kuo FL, McDougald RN, Rabaâ H, Pan H, Bacsa J, Wang X, Dunbar KR, Shepherd ND, Omary MA. Synthesis, spectroscopic properties, and photoconductivity of black absorbers consisting of pt(bipyridine)(dithiolate) charge transfer complexes in the presence and absence of nitrofluorenone acceptors. J Am Chem Soc 2014; 136:16185-200. [PMID: 25245381 DOI: 10.1021/ja506583k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The diimine-dithiolato ambipolar complexes Pt(dbbpy)(tdt) and Pt(dmecb)(bdt) (dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine; tdt(2-) = 3,4-toluenedithiolate; dmecb = 4,4'-dimethoxyester-2,2'-bipyridine; bdt(2-) = benzene-1,2-dithiolate) are prepared herein. Pt(dmecb)(bdt) exhibits photoconductivity that remains constant (photocurrent density of 1.6 mA/cm(2) from a 20 nm thin film) across the entire visible region of the solar spectrum in a Schottky diode device structure. Pt(dbbpy)(tdt) acts as donor when combined with the strong nitrofluorenone acceptors 2,7-dinitro-9-fluorenone (DNF), 2,4,7-trinitro-9-fluorenone (TRNF), or 2,4,5,7-tetranitro-9-fluorenone (TENF). Supramolecular charge transfer stacks form and exhibit various donor-acceptor stacking patterns. The crystalline solids are "black absorbers" that exhibit continuous absorptions spanning the entire visible region and significant ultraviolet and near-infrared wavelengths, the latter including long wavelengths that the donor or acceptor molecules alone do not absorb. Absorption spectra reveal the persistence of donor-acceptor interactions in solution, as characterized by low-energy donor/acceptor charge transfer (DACT) bands. Crystal structures show closely packed stacks with distances that underscore intermolecular DACT. (1)H NMR provides further evidence of DACT, as manifested by upfield shifts of aromatic protons in the binary adducts versus their free components, whereas 2D nuclear Overhauser effect spectroscopy (NOESY) spectra suggest coupling between dithiolate donor protons with nitrofluorenone acceptor protons, in correlation with the solid-state stacking. The NMR spectra also show significant peak broadening, indicating some paramagnetism verified by magnetic susceptibility data. Solid-state absorption spectra reveal further red shifts and increased relative intensities of DACT bands for the solid adducts vs solution, suggesting cooperativity of the DACT phenomenon in the solid state, as further substantiated by νC-O and νN-O IR bands and solid-state tight-binding computational analysis.
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Affiliation(s)
- Charles Browning
- Departments of Chemistry and Materials Science and Engineering, University of North Texas , Denton, Texas 76203-5070, United States
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159
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Kan B, Zhang Q, Li M, Wan X, Ni W, Long G, Wang Y, Yang X, Feng H, Chen Y. Solution-Processed Organic Solar Cells Based on Dialkylthiol-Substituted Benzodithiophene Unit with Efficiency near 10%. J Am Chem Soc 2014; 136:15529-32. [DOI: 10.1021/ja509703k] [Citation(s) in RCA: 633] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bin Kan
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Qian Zhang
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Miaomiao Li
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Xiangjian Wan
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Wang Ni
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Guankui Long
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yunchuang Wang
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Xuan Yang
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Huanran Feng
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yongsheng Chen
- Key Laboratory
of Functional
Polymer Materials and the Center for Nanoscale Science and Technology,
Institute of Polymer Chemistry, College of Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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160
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Yagai S, Suzuki M, Lin X, Gushiken M, Noguchi T, Karatsu T, Kitamura A, Saeki A, Seki S, Kikkawa Y, Tani Y, Nakayama KI. Supramolecular Engineering of Oligothiophene Nanorods without Insulators: Hierarchical Association of Rosettes and Photovoltaic Properties. Chemistry 2014; 20:16128-37. [DOI: 10.1002/chem.201404428] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Indexed: 11/07/2022]
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161
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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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162
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Proctor CM, Love JA, Nguyen TQ. Mobility guidelines for high fill factor solution-processed small molecule solar cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5957-5961. [PMID: 25047697 DOI: 10.1002/adma.201401725] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/12/2014] [Indexed: 06/03/2023]
Abstract
Analysis of measured charge-carrier mobilities and fill factors in solution-processable small-molecule bulk-heterojunction solar cells reveals that in order to achieve a high FF, the hole and electron mobilities must be >10(-4) cm 2 V(-1) s(-1) . Neat-film mobility measurements are also found to be a useful predictor of the maximum blend film mobility and FF obtained in blend film solar cells.
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Affiliation(s)
- Christopher M Proctor
- Center for Polymers and Organic Solids, University of California, Santa Barbara, CA, 93106, USA; Materials Department, University of California, Santa Barbara, CA, 93106, USA
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163
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Chen W, Zhang Q, Salim T, Ekahana SA, Wan X, Sum TC, Lam YM, Hon Huan Cheng A, Chen Y, Zhang Q. Synthesis and photovoltaic properties of novel C60 bisadducts based on benzo[2,1,3]-thiadiazole. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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164
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Rutledge LR, McAfee SM, Welch GC. Design and Computational Characterization of Non-Fullerene Acceptors for Use in Solution-Processable Solar Cells. J Phys Chem A 2014; 118:7939-51. [DOI: 10.1021/jp505867y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lesley R. Rutledge
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Seth M. McAfee
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Gregory C. Welch
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, P.O.
Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
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165
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Triphenylamine‐Substituted Metalloporphyrins for Solution‐Processed Bulk Heterojunction Solar Cells: The Effect of the Central Metal Ion on Device Performance. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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166
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Long G, Wan X, Kan B, Hu Z, Yang X, Zhang Y, Zhang M, Wu H, Huang F, Su S, Cao Y, Chen Y. Impact of the electron-transport layer on the performance of solution-processed small-molecule organic solar cells. CHEMSUSCHEM 2014; 7:2358-64. [PMID: 24984949 DOI: 10.1002/cssc.201402171] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 03/23/2014] [Indexed: 05/21/2023]
Abstract
Although the performance of polymer solar cells has been improved significantly recently through careful optimization with different interlayers for the same materials, more improvement is needed in this respect for small-molecule-based solar cells, particularly for the electron-transport layers (ETLs). In this work, three different solution-processed ETLs, PFN, ZnO nanoparticles, and LiF, were investigated and compared in the performance of small-molecule-based devices, and power conversion efficiencies (PCEs) of 8.32, 7.30, and 7.38% were achieved, respectively. The mechanism for the ETL-induced enhancement has been studied, and different ETLs have a significantly different impact on the device performance. The clearly improved performance of PFN is attributed to the combination of reduced bimolecular recombination and increased effective photon absorption in the active layer.
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Affiliation(s)
- Guankui Long
- Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering, Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071 (PR China)
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167
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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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168
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Lan SC, Raghunath P, Lu YH, Wang YC, Lin SW, Liu CM, Jiang JM, Lin MC, Wei KH. Symmetry and coplanarity of organic molecules affect their packing and photovoltaic properties in solution-processed solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:9298-9306. [PMID: 24877557 DOI: 10.1021/am501659u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study we synthesized three acceptor-donor-acceptor (A-D-A) organic molecules, TB3t-BT, TB3t-BTT, and TB3t-BDT, comprising 2,2'-bithiophene (BT), benzo[1,2-b:3,4-b':5,6-d″]trithiophene (BTT), and benzo[1,2-b;4,5-b']dithiophene (BDT) units, respectively, as central cores (donors), terthiophene (3t) as π-conjugated spacers, and thiobarbituric acid (TB) units as acceptors. These molecules display different degrees of coplanarity as evidenced by the differences in dihedral angles calculated from density functional theory. By using differential scanning calorimetry and X-ray diffractions for probing their crystallization characteristics and molecular packing in active layers, we found that the symmetry and coplanarity of molecules would significantly affect the melting/crystallization behavior and the formation of crystalline domains in the blend film with fullerene, PC61BM. TB3t-BT and TB3t-BDT, which each possess an inversion center and display high crystallinity in their pristine state, but they have different driving forces in crystallization, presumably because of different degrees of coplanarity. On the other hand, the asymmetrical TB3t-BTT behaved as an amorphous material even though it possesses a coplanar structure. Among our tested systems, the device comprising as-spun TB3t-BDT/PC61BM (6:4, w/w) active layer featured crystalline domains and displayed the highest power conversion efficiency (PCE) of 4.1%. In contrast, the as-spun TB3t-BT/PC61BM (6:4, w/w) active layer showed well-mixed morphology and with a device PCE of 0.2%; it increased to 3.9% after annealing the active layer at 150 °C for 15 min. As for TB3t-BTT, it required a higher content of fullerene in the TB3t-BTT/PC61BM (4:6, w/w) active layer to optimize its device PCE to 1.6%.
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Affiliation(s)
- Shang-Che Lan
- Department of Materials Science and Engineering, National Chiao Tung University , 300 Hsinchu City, Taiwan
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169
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Bai H, Wang Y, Cheng P, Li Y, Zhu D, Zhan X. Acceptor-donor-acceptor small molecules based on indacenodithiophene for efficient organic solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8426-8433. [PMID: 24810076 DOI: 10.1021/am501316y] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Four A-D-A type small molecules using 4,4,9,9-tetrakis(4-hexylphenyl)- indaceno[1,2-b:5,6-b']dithiophene as central building block, bithiophene or terthiophene as π-bridges, alkyl cyanoacetate or rhodanine as end acceptor groups were synthesized and investigated as electron donors in solution-processed organic solar cells (OSCs). These molecules showed excellent thermal stability with decomposition temperatures over 360 °C, relatively low HOMO levels of -5.18 to -5.22 eV, and strong optical absorption from 350 to 670 nm with high molar extinction coefficient of 1.1 × 10(5) to 1.6 × 10(5) M(-1) cm(-1) in chloroform solution. OSCs based on blends of these molecules and PC71BM achieved average power conversion efficiencies of 2.32 to 5.09% (the best 5.32%) after thermal annealing. The effects of thiophene bridge length and end acceptor groups on absorption, energy level, charge transport, morphology, and photovoltaic properties of the molecules were investigated.
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Affiliation(s)
- Huitao Bai
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
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170
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Molina D, Guerrero A, Garcia-Belmonte G, Fernández-Lázaro F, Sastre-Santos Á. Synthesis of a Fully Conjugated Phthalocyanine-Diketopyrrolopyrrole-Phthalocyanine Triad as Low Band Gap Donor in Small Molecule Bulk Heterojunction Solar Cells. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400147] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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171
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Huang Y, Kramer EJ, Heeger AJ, Bazan GC. Bulk Heterojunction Solar Cells: Morphology and Performance Relationships. Chem Rev 2014; 114:7006-43. [DOI: 10.1021/cr400353v] [Citation(s) in RCA: 1017] [Impact Index Per Article: 101.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ye Huang
- Center for Polymers and Organic Solids, Department of Chemistry & Biochemistry, ‡Department of Materials, §Department of Chemical Engineering, and ∥Department of Physics, University of California, Santa Barbara, California 93106, United States
| | - Edward J. Kramer
- Center for Polymers and Organic Solids, Department of Chemistry & Biochemistry, ‡Department of Materials, §Department of Chemical Engineering, and ∥Department of Physics, University of California, Santa Barbara, California 93106, United States
| | - Alan J. Heeger
- Center for Polymers and Organic Solids, Department of Chemistry & Biochemistry, ‡Department of Materials, §Department of Chemical Engineering, and ∥Department of Physics, University of California, Santa Barbara, California 93106, United States
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids, Department of Chemistry & Biochemistry, ‡Department of Materials, §Department of Chemical Engineering, and ∥Department of Physics, University of California, Santa Barbara, California 93106, United States
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172
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Cambarau W, Viterisi A, Ryan JW, Palomares E. Small molecule-based tandem solar cells with solution-processed and vacuum-processed photoactive layers. Chem Commun (Camb) 2014; 50:5349-51. [PMID: 24326870 DOI: 10.1039/c3cc47333c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A tandem solar cell device whose sub-cells are fabricated exclusively from small molecules (SMs) through both solution-processed and vacuum-processed deposition techniques is described. The front sub-cell's active layer consists of a bulk heterojunction (BHJ) DPP(TBFu)2:PC70BM device while the back cell has a typical bilayer structure employing a 2,4-bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine (SQ) donor and a C60 acceptor.
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Affiliation(s)
- Werther Cambarau
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans, 16, Tarragona 43007, Spain.
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173
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Gao L, Zhang J, He C, Zhang Y, Sun Q, Li Y. Effect of additives on the photovoltaic properties of organic solar cells based on triphenylamine-containing amorphous molecules. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5114-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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174
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Yu C, He C, Yang Y, Cai Z, Luo H, Li W, Peng Q, Zhang G, Liu Z, Zhang D. New Conjugated Molecules with Two and Three Dithienyldiketopyrrolopyrrole (DPP) Moieties Substituted atmetaPositions of Benzene toward p- and n-Type Organic Photovoltaic Materials. Chem Asian J 2014; 9:1570-8. [DOI: 10.1002/asia.201400089] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Indexed: 11/09/2022]
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175
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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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176
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Zhang J, He C, Zhang ZG, Deng D, Zhang M, Li Y. D-A-D structured organic molecules with diketopyrrolopyrrole acceptor unit for solution-processed organic solar cells. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2014; 372:20130009. [PMID: 24615148 PMCID: PMC3949361 DOI: 10.1098/rsta.2013.0009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Four solution-processable D-A-D structured organic molecules with diketopyrrolopyrrole (DPP) as acceptor unit and triphenylamine (TPA) or (4-hexyl)thieno [3,2-b]thiophene (HTT) as donor unit, DPP8-TPA, DPP8-TPA-OR, DPP6-HTT and DPP8-HTT, were designed and synthesized for the application as donor materials in solution-processed organic solar cells (OSCs). The molecules show broad absorption and relatively lower highest occupied molecular orbital energy levels. Photovoltaic properties of the molecules were investigated by fabricating the bulk-heterojunction OSCs with the molecules as donor and PC71BM as acceptor. Power conversion efficiency of the OSC based on DPP8-HTT reached 1.5% under the illumination of AM1.5, 100 mW cm(-2).
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177
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Liu X, Sun Y, Hsu BBY, Lorbach A, Qi L, Heeger AJ, Bazan GC. Design and Properties of Intermediate-Sized Narrow Band-Gap Conjugated Molecules Relevant to Solution-Processed Organic Solar Cells. J Am Chem Soc 2014; 136:5697-708. [DOI: 10.1021/ja413144u] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaofeng Liu
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yanming Sun
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ben B. Y. Hsu
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Andreas Lorbach
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Li Qi
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alan J. Heeger
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Guillermo C. Bazan
- Center for Polymers and Organic
Solids, ‡Department of Chemistry and Biochemistry, and §Department of
Physics, University of California, Santa Barbara, California 93106, United States
- Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
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178
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Jarosz T, Lapkowski M, Ledwon P. Advances in Star-Shaped π-Conjugated Systems: Properties and Applications. Macromol Rapid Commun 2014; 35:1006-32. [DOI: 10.1002/marc.201400061] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/07/2014] [Indexed: 01/20/2023]
Affiliation(s)
- Tomasz Jarosz
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
| | - Mieczyslaw Lapkowski
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; 41-819 Zabrze Curie-Sklodowskiej 34 Poland
| | - Przemyslaw Ledwon
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
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179
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Lai LF, Love JA, Sharenko A, Coughlin JE, Gupta V, Tretiak S, Nguyen TQ, Wong WY, Bazan GC. Topological Considerations for the Design of Molecular Donors with Multiple Absorbing Units. J Am Chem Soc 2014; 136:5591-4. [DOI: 10.1021/ja501711m] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Lai Fan Lai
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Institute
of Molecular Functional Materials and Department of Chemistry and
Institute of Advanced Materials, Hong Kong Baptist University, Waterloo
Road, Hong Kong, P.R. China
| | - John A. Love
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Alexander Sharenko
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Jessica E. Coughlin
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Theoretical
Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Vinay Gupta
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Organic
and Hybrid Solar Cell Group, CSIR-National Physical Laboratory, Dr. K. S. Krishnan
Marg, New Dehli, 110012, India
| | - Sergei Tretiak
- Theoretical
Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Thuc-Quyen Nguyen
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Department
of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Wai-Yeung Wong
- Institute
of Molecular Functional Materials and Department of Chemistry and
Institute of Advanced Materials, Hong Kong Baptist University, Waterloo
Road, Hong Kong, P.R. China
| | - Guillermo C. Bazan
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Center
of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
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180
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Huang J, Wang X, Zhang X, Niu Z, Lu Z, Jiang B, Sun Y, Zhan C, Yao J. Additive-assisted control over phase-separated nanostructures by manipulating alkylthienyl position at donor backbone for solution-processed, non-fullerene, all-small-molecule solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3853-3862. [PMID: 24559327 DOI: 10.1021/am406050j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A non-fullerene, all-small-molecule solar cell (NF-SMSC) device uses the blend of a small molecule donor and a small molecule acceptor as the active layer. Aggregation ability is a key factor for this type of solar cell. Herein, we used the alkylthienyl unit to tune the aggregation ability of the diketopyrrolopyrrole (DPP)-based small molecule donors. Replacing two alkoxyl units in BDT-O-DPP with two alkylthienyl units yields BDT-T-DPP, and further introducing another two alkylthienyl units into the backbone produces BDT-T-2T-DPP. With the introduction of alkylthienyl, the backbone becomes twisted. As a result, the ππ-stacking strength, aggregation ability, and crystallite size all obey the sequence of BDT-O-DPP > BDT-T-DPP > BDT-T-2T-DPP. When selected a reported perylene diimide dimer of bis-PDI-T-EG as acceptor, the best NF-SMSC device exhibits a power conversion efficiency of 1.34, 2.01, and 1.62%, respectively, for the BDT-O-DPP, BDT-T-DPP, and BDT-T-2T-DPP based system. The BDT-T-DPP/bis-PDI-T-EG system yields the best efficiency of 2.01% among the three combinations. This is due to the moderate aggregation ability of BDT-T-DPP yields moderate phase size of 30-50 nm, whereas the strong aggregation ability of BDT-O-DPP gives a bigger size of 50-80 nm, and the weak aggregation ability of BDT-T-2T-DPP produces a smaller size of 10-30 nm. The BDT-T-DPP/bis-PDI-T-EG combination exhibits balanced hole/electron mobility of 0.022/0.016 cm(2)/(V s), whereas the BDT-O-DPP/bis-PDI-T-EG and the BDT-T-2T-DPP/bis-PDI-T-EG blend show a hole/electron mobility of 0.0011/0.0057 cm(2)/(V s) and 0.0016/0.11 cm(2)/(V s), respectively.
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Affiliation(s)
- Jianhua Huang
- 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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181
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Lin JDA, Liu J, Kim C, Tamayo AB, Proctor CM, Nguyen TQ. Effect of structural variation on photovoltaic characteristics of phenyl substituted diketopyrrolopyrroles. RSC Adv 2014. [DOI: 10.1039/c3ra45662e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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182
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Love JA, Nagao I, Huang Y, Kuik M, Gupta V, Takacs CJ, Coughlin JE, Qi L, van der Poll TS, Kramer EJ, Heeger AJ, Nguyen TQ, Bazan GC. Silaindacenodithiophene-Based Molecular Donor: Morphological Features and Use in the Fabrication of Compositionally Tolerant, High-Efficiency Bulk Heterojunction Solar Cells. J Am Chem Soc 2014; 136:3597-606. [DOI: 10.1021/ja412473p] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- John A. Love
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Ikuhiro Nagao
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Ye Huang
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Martijn Kuik
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Vinay Gupta
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
- Organic
and Hybrid Solar Cell Group, CSIR-National Physical Laboratory, New Delhi 110012, India
| | - Christopher J. Takacs
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Jessica E. Coughlin
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Li Qi
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Thomas S. van der Poll
- Center
for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
| | - Edward J. Kramer
- 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
| | - Thuc-Quyen Nguyen
- 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
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183
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Wang D, Zhang X, Ding W, Zhao X, Geng Z. Density functional theory design and characterization of D–A–A type electron donors with narrow band gap for small-molecule organic solar cells. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2013.12.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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184
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He Z, Wu H, Cao Y. Recent advances in polymer solar cells: realization of high device performance by incorporating water/alcohol-soluble conjugated polymers as electrode buffer layer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1006-1024. [PMID: 24338677 DOI: 10.1002/adma.201303391] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/30/2013] [Indexed: 06/03/2023]
Abstract
This Progress Report highlights recent advances in polymer solar cells with special attention focused on the recent rapid-growing progress in methods that use a thin layer of alcohol/water-soluble conjugated polymers as key component to obtain optimized device performance, but also discusses novel materials and device architectures made by major prestigious institutions in this field. We anticipate that due to drastic improvements in efficiency and easy utilization, this method opens up new opportunities for PSCs from various material systems to improve towards 10% efficiency, and many novel device structures will emerge as suitable architectures for developing the ideal roll-to-roll type processing of polymer-based solar cells.
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Affiliation(s)
- Zhicai He
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
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185
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Tamilavan V, Song M, Agneeswari R, Hyun MH. Linkage position influences of anthracene and tricyanovinyl groups on the opto-electrical and photovoltaic properties of anthracene-based organic small molecules. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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186
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Ting HC, Chen YH, Lin LY, Chou SH, Liu YH, Lin HW, Wong KT. Benzochalcogenodiazole-based donor-acceptor-acceptor molecular donors for organic solar cells. CHEMSUSCHEM 2014; 7:457-465. [PMID: 24488678 DOI: 10.1002/cssc.201301090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Indexed: 06/03/2023]
Abstract
Four new molecules with a donor-acceptor-acceptor (D-A-A) configuration, in which 2,1,3-benzoxadiazole or 2,1,3-benzoselenodiazole were adopted as the central bridging acceptor, were synthesized as electron donors for small-molecule organic solar cells. In conjunction with two previously reported 2,1,3-benzothiadiazole-based compounds, the influences of the benzochalcogenodiazole acceptor unit and the ditolylarylamine donor moiety on the molecular structure, electrochemical behavior, and optical properties of the materials were investigated systematically to obtain a clear structure-property relationship. Vacuum-deposited hybrid planar mixed-heterojunction devices fabricated with the new donors and C70 as the acceptor showed power conversion efficiencies in the range of 2.9-4.3 % under 1 sun (100 mW cm(-2) ) AM 1.5 G simulated solar illumination. The current density-voltage characteristics of solar cells at various light intensities were measured, which revealed a high bimolecular recombination.
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Affiliation(s)
- Hao-Chun Ting
- Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
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187
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Jin XH, Sheberla D, Shimon LJW, Bendikov M. Highly coplanar very long oligo(alkylfuran)s: a conjugated system with specific head-to-head defect. J Am Chem Soc 2014; 136:2592-601. [PMID: 24437464 DOI: 10.1021/ja411842g] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Well-defined monodisperse conjugated oligomers, which have planar backbones and are free from the disturbance of substituents, attract broad interest. Herein, we report a series of symmetrical, isomerically pure oligofurans, namely, the 16-mer 16F-6C6 together with the related nF-2C6 (n = 4, 6, 8). Through computational studies and detailed spectroscopic and X-ray characterization, for the first time, we show that the planarity of the furan backbone is almost unaffected by the head-to-head defect which is known to cause considerable twists in its oligo- or polythiophene analogues. We present that the properties of these rigid oligo(alkylfuran)s are strongly influenced by the conjugation length. As the longest monodisperse α-oligofuran synthesized to date, 16F-6C6 was observed to be stable and highly fluorescent. Experimental and computational studies of the redox states of these oligo(alkylfuran)s reveal that 16F-6C6 has singlet biradical (polaron-pair) character in the doubly oxidized ground state: the open-shell singlet (⟨S2⟩ = 0.989) is 3.8 kcal/mol more stable than the closed-shell dication.
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Affiliation(s)
- Xu-Hui Jin
- Department of Organic Chemistry and Chemical Research Support Unit, Weizmann Institute of Science , Rehovot 76100, Israel
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188
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Wang G, Jiu T, Sun C, Li J, Li P, Lu F, Fang J. Highly efficient organic photovoltaics via incorporation of solution-processed cesium stearate as the cathode interfacial layer. ACS APPLIED MATERIALS & INTERFACES 2014; 6:833-838. [PMID: 24364568 DOI: 10.1021/am403829k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Highly efficient organic solar cells were successfully demonstrated by incorporating a solution-processed cesium stearate between the photoactive layer and metal cathode as a novel cathode interfacial layer. The analysis of surface potential change indicated the existence of an interfacial dipole between the photoactive layer and metal electrode, which was responsible for the power conversion efficiency (PCE) enhancement of devices. The significant improvement in the device performance and the simple preparation method by solution processing suggested a promising and practical pathway to improve the efficiency of the organic solar cells.
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Affiliation(s)
- Guojie Wang
- Institute of New Energy Technology, Ningbo Institute of Material Technology and Engineering (NIMTE), Chinese Academy of Science (CAS) , Ningbo, Zhejiang 315201, P. R. China
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189
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Liu L, Li H, Bian J, Qian J, Wei Y, Li J, Tian W. Solution-processable two-dimensional conjugated organic small molecules containing triphenylamine cores for photovoltaic application. NEW J CHEM 2014. [DOI: 10.1039/c4nj00814f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Solution-processable two-dimensional conjugated organic small molecules were synthesized. Solar cells based on TPA-BT-C8 exhibit a much higher performance than that based on TPA-3Th.
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Affiliation(s)
- Leijing Liu
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012, P. R. China
| | - Hui Li
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012, P. R. China
| | - Ji Bian
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012, P. R. China
| | - Jingyu Qian
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012, P. R. China
| | - Yingjin Wei
- Key Laboratory of Physics and Technology for Advanced Batteries
- Ministry of Education
- Jilin University
- Changchun 130012, P. R. China
| | - Jiyang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012, P. R. China
| | - Wenjing Tian
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012, P. R. China
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190
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Chen Y, Du Z, Chen W, Wen S, Sun L, Liu Q, Sun M, Yang R. New small molecules with thiazolothiazole and benzothiadiazole acceptors for solution-processed organic solar cells. NEW J CHEM 2014. [DOI: 10.1039/c3nj01457f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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191
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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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192
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Chen W, Salim T, Fan H, James L, Lam YM, Zhang Q. Quinoxaline-functionalized C60 derivatives as electron acceptors in organic solar cells. RSC Adv 2014. [DOI: 10.1039/c4ra02911a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two new quinoxaline-functionalized C60 derivatives with high LUMO levels have been synthesized and applied in organic solar cells. BHJ-OSCs incorporating P3HT as donor and TQMA (or TQBA) as acceptor exhibit an open-circuit voltage (VOC) of 0.76 V (or 0.84 V), which is about 0.12 V (or 0.20 V) higher than PCBM as electron acceptor.
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Affiliation(s)
- Wangqiao Chen
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798, Singapore
- Institute for Sports Research
- Nanyang Technological University
| | - Teddy Salim
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798, Singapore
| | - Haijun Fan
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798, Singapore
| | - Lewis James
- School of Sport
- Exercise and Health Sciences
- Loughborough University
- Leicestershire, UK
| | - Yeng Ming Lam
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798, Singapore
| | - Qichun Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798, Singapore
- Institute for Sports Research
- Nanyang Technological University
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193
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Sharma GD, Reddy MA, Ganesh K, Singh SP, Chandrasekharam M. Indole and triisopropyl phenyl as capping units for a diketopyrrolopyrrole (DPP) acceptor central unit: an efficient D–A–D type small molecule for organic solar cells. RSC Adv 2014. [DOI: 10.1039/c3ra44926b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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194
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Liu X, Li S, Li J, Wang J, Tan Z, Yan F, Li H, Lo YH, Chui CH, Wong WY. Synthesis, characterization and photovoltaic properties of benzo[1,2-b:4,5-b′]dithiophene-bridged molecules. RSC Adv 2014. [DOI: 10.1039/c4ra10081f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four benzo[1,2-b:4,5-b′]dithiophene (BDT) centred small molecules with different acceptor and end-capping groups were synthesized as the donor materials for organic solar cells.
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Affiliation(s)
- Xinli Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
- Institute of Molecular Functional Materials
| | - Shusheng Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources
- Beijing Key Laboratory of Energy Security and Clean Utilization
- North China Electric Power University
- Beijing 102206, PR China
| | - Jinhua Li
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hung Hom, PR China
| | - Jian Wang
- Institute of Theoretical Chemistry
- State Key Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023, PR China
| | - Zhan'ao Tan
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources
- Beijing Key Laboratory of Energy Security and Clean Utilization
- North China Electric Power University
- Beijing 102206, PR China
| | - Feng Yan
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hung Hom, PR China
| | - Hua Li
- Institute of Molecular Functional Materials
- Partner State Key Laboratory of Environmental and Biological Analysis
- Department of Chemistry and Institute of Advanced Materials
- Hong Kong Baptist University
- Kowloon Tong, PR China
| | - Yih Hsing Lo
- Department of Applied Physics and Chemistry
- University of Taipei
- Taipei 100, Taiwan
| | - Chung-Hin Chui
- Clinical Division
- School of Chinese Medicine
- Hong Kong Baptist University
- , PR China
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials
- Partner State Key Laboratory of Environmental and Biological Analysis
- Department of Chemistry and Institute of Advanced Materials
- Hong Kong Baptist University
- Kowloon Tong, PR China
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195
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Zheng L, Chung YH, Ma Y, Zhang L, Xiao L, Chen Z, Wang S, Qu B, Gong Q. A hydrophobic hole transporting oligothiophene for planar perovskite solar cells with improved stability. Chem Commun (Camb) 2014; 50:11196-9. [PMID: 25111693 DOI: 10.1039/c4cc04680c] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An oligothiophene derivative with high hydrophobicity was synthesized and functioned as HTM for perovskite solar cells without an ion additive, resulting in improved device stability than that observed when using Li-TFSI doped spiro-MeOTAD.
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Affiliation(s)
- Lingling Zheng
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
| | - Yao-Hsien Chung
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
| | - Yingzhuang Ma
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
| | - Lipei Zhang
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
| | - Lixin Xiao
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
- New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait
- Fuzhou 350002, China
| | - Zhijian Chen
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
- New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait
- Fuzhou 350002, China
| | - Shufeng Wang
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
- New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait
- Fuzhou 350002, China
| | - Bo Qu
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
- New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait
- Fuzhou 350002, China
| | - Qihuang Gong
- State Key Laboratory for Mesoscopic Physics and Department of Physics
- Peking University
- Beijing 100871, China
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196
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Paramasivam M, Gupta A, Raynor AM, Bhosale SV, Bhanuprakash K, Jayathirtha Rao V. Small band gap D-π-A-π-D benzothiadiazole derivatives with low-lying HOMO levels as potential donors for applications in organic photovoltaics: a combined experimental and theoretical investigation. RSC Adv 2014. [DOI: 10.1039/c4ra02700k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Small organic molecules with potential applications as donors in OPV featuring carbazole, benzocarbazole as donors, benzothiadiazole as acceptor and fluorene, thiophene as spacers (π) have been synthesized and characterized.
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Affiliation(s)
- Mahalingavelar Paramasivam
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad, India
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
| | - Akhil Gupta
- School of Applied Sciences
- RMIT University
- Melbourne, Australia
| | - Aaron M. Raynor
- School of Applied Sciences
- RMIT University
- Melbourne, Australia
| | | | - K. Bhanuprakash
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad, India
- CSIR-Network of Institutes for Solar Energy
- New Delhi, India
| | - V. Jayathirtha Rao
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad, 500007 India
- CSIR-Network of Institutes for Solar Energy
- New Delhi, India
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197
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Mirloup A, Leclerc N, Rihn S, Bura T, Bechara R, Hébraud A, Lévêque P, Heiser T, Ziessel R. A deep-purple-grey thiophene–benzothiadiazole–thiophene BODIPY dye for solution-processed solar cells. NEW J CHEM 2014. [DOI: 10.1039/c4nj00294f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Original flat thiophene–benzothiadiazole–thiophene BODIPY dyes have been engineered without unsaturated linkers for solution processed solar cells.
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Affiliation(s)
- Antoine Mirloup
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA
- Ecole Européenne de Chimie
- Polymères et Matériaux
| | - Nicolas Leclerc
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Université de Strasbourg
- Ecole Européenne de Chimie
- Polymères et Matériaux
| | - Sandra Rihn
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA
- Ecole Européenne de Chimie
- Polymères et Matériaux
| | - Thomas Bura
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA
- Ecole Européenne de Chimie
- Polymères et Matériaux
| | - Rony Bechara
- Laboratoire ICube
- Université de Strasbourg
- CNRS
- 67037 Strasbourg, France
| | - Anne Hébraud
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Université de Strasbourg
- Ecole Européenne de Chimie
- Polymères et Matériaux
| | - Patrick Lévêque
- Laboratoire ICube
- Université de Strasbourg
- CNRS
- 67037 Strasbourg, France
| | - Thomas Heiser
- Laboratoire ICube
- Université de Strasbourg
- CNRS
- 67037 Strasbourg, France
| | - Raymond Ziessel
- Institut de Chimie et Procédés pour l'Energie
- l'Environnement et la Santé (ICPEES)
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA
- Ecole Européenne de Chimie
- Polymères et Matériaux
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198
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Huang CY, Lee WH, Lee RH. Solution processable star-shaped molecules with a triazine core and branching thienylenevinylenes for bulk heterojunction solar cells. RSC Adv 2014. [DOI: 10.1039/c4ra07139e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two new star-shaped A–π–D molecules with triazine as a core and an acceptor unit, thienylenevinylene as the π bridge, and tert-butyl-substituted triphenylamine (tTPA)- or carbazole (tCz) as the end group and donor units of TTVTPA and TTVCz were synthesized for their application as donor materials in solution processed bulk heterojunction organic solar cells (OSCs).
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Affiliation(s)
- Chien-Yi Huang
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung, Taiwan
| | - Wan-Hua Lee
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung, Taiwan
| | - Rong-Ho Lee
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung, Taiwan
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199
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Ni W, Li M, Wan X, Feng H, Kan B, Zuo Y, Chen Y. A high-performance photovoltaic small molecule developed by modifying the chemical structure and optimizing the morphology of the active layer. RSC Adv 2014. [DOI: 10.1039/c4ra04862h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High performance organic solar cell (8.26% PCE) developed through modifying the chemical structure of molecule and optimizing the morphology of active layer.
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Affiliation(s)
- Wang Ni
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Miaomiao Li
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Xiangjian Wan
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Huanran Feng
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Bin Kan
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Yi Zuo
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
| | - Yongsheng Chen
- Key Laboratory of Functional Polymer Materials
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Center for Nanoscale Science and Technology
- Institute of Polymer Chemistry
- College of Chemistry
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200
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Singh S, Venugopalan V, Krishnamoorthy K. Organic soluble and uniform film forming oligoethylene glycol substituted BODIPY small molecules with improved hole mobility. Phys Chem Chem Phys 2014; 16:13376-82. [DOI: 10.1039/c4cp01098a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A propeller type donor imparts organic solubility to oligoethylene glycol substituted conjugated small molecules. The oligoethylene glycol facilitates better intermolecular contacts and improved organic field effect transistor efficiency.
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Affiliation(s)
- Saumya Singh
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory-Pune
- Pune, India
- Academy of Scientific and Innovative Research
- New Delhi, India
| | - Vijay Venugopalan
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory-Pune
- Pune, India
- CSIR-Network of Institutes for Solar Energy
- New Delhi, India
| | - Kothandam Krishnamoorthy
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory-Pune
- Pune, India
- Academy of Scientific and Innovative Research
- New Delhi, India
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