Enhancement in Organic Photovoltaic Efficiency through the Synergistic Interplay of Molecular Donor Hydrogen Bonding and -Stacking

Shewmon, Nathan; Watkins, Davita; Galindo, Johan; Zerdan, Raghida; Chen, Jihua; Keum, Jong Kahk; Roitberg, Adrian; Xue, Jiangeng; Castellano, Ronald

doi:10.1002/adfm.201501815

Enhancement in Organic Photovoltaic Efficiency through the Synergistic Interplay of Molecular Donor Hydrogen Bonding and -Stacking

Journal Article · Mon Jul 20 00:00:00 EDT 2015 · Advanced Functional Materials

DOI:https://doi.org/10.1002/adfm.201501815· OSTI ID:1286904

Shewmon, Nathan ^[1]; Watkins, Davita ^[1]; Galindo, Johan ^[1]; Zerdan, Raghida ^[1]; Chen, Jihua ^[2]; Keum, Jong Kahk ^[2]; Roitberg, Adrian ^[1]; Xue, Jiangeng ^[1]; Castellano, Ronald ^[1]

Univ. of Florida, Gainesville, FL (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

For organic photovoltaic (OPV) cells based on the bulk heterojunction (BHJ) structure, it remains challenging to rationally control the degree of phase separation and percolation within blends of donors and acceptors to secure optimal charge separation and transport. Reported is a bottom-up, supramolecular approach to BHJ OPVs wherein tailored hydrogen bonding (H-bonding) interactions between π-conjugated electron donor molecules encourage formation of vertically aligned donor π-stacks while simultaneously suppressing lateral aggregation; the programmed arrangement facilitates fine mixing with fullerene acceptors and efficient charge transport. The approach is illustrated using conventional linear or branched quaterthiophene donor chromophores outfitted with terminal functional groups that are either capable or incapable of self-complementary H-bonding. When applied to OPVs, the H-bond capable donors yield a twofold enhancement in power conversion efficiency relative to the comparator systems, with a maximum external quantum efficiency of 64%. H-bond promoted assembly results in redshifted absorption (in neat films and donor:C 60 blends) and enhanced charge collection efficiency despite disparate donor chromophore structure. Both features positively impact photocurrent and fill factor in OPV devices. Film structural characterization by atomic force microscopy, transmission electron microscopy, and grazing incidence wide angle X-ray scattering reveals a synergistic interplay of lateral H-bonding interactions and vertical π-stacking for directing the favorable morphology of the BHJ.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1286904

Journal Information:: Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 32 Vol. 25; ISSN 1616-301X

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

References (73)

Fluorinated Zinc Phthalocyanine as Donor for Efficient Vacuum-Deposited Organic Solar Cells Meiss, Jan; Merten, Andre; Hein, Moritz Advanced Functional Materials, Vol. 22, Issue 2 https://doi.org/10.1002/adfm.201101799	journal	November 2011
Fluorinated Polymer Yields High Organic Solar Cell Performance for a Wide Range of Morphologies Tumbleston, John R.; Stuart, Andrew C.; Gann, Eliot Advanced Functional Materials, Vol. 23, Issue 27 https://doi.org/10.1002/adfm.201300093	journal	February 2013
Post-Deposition Activation of Latent Hydrogen-Bonding: A New Paradigm for Enhancing the Performances of Bulk Heterojunction Solar Cells Bruni, Francesco; Sassi, Mauro; Campione, Marcello Advanced Functional Materials, Vol. 24, Issue 47 https://doi.org/10.1002/adfm.201400896	journal	September 2014
Comparison of Two D−A Type Polymers with Each Being Fluorinated on D and A Unit for High Performance Solar Cells Jo, Jea Woong; Bae, Seunghwan; Liu, Feng Advanced Functional Materials, Vol. 25, Issue 1 https://doi.org/10.1002/adfm.201402210	journal	October 2014
Rational Design of Small Molecular Donor for Solution-Processed Organic Photovoltaics with 8.1% Efficiency and High Fill Factor via Multiple Fluorine Substituents and Thiophene Bridge Wang, Jin-Liang; Yin, Qing-Ru; Miao, Jing-Sheng Advanced Functional Materials, Vol. 25, Issue 23 https://doi.org/10.1002/adfm.201500190	journal	May 2015
A Versatile Fluoro-Containing Low-Bandgap Polymer for Efficient Semitransparent and Tandem Polymer Solar Cells Chang, Chih-Yu; Zuo, Lijian; Yip, Hin-Lap Advanced Functional Materials, Vol. 23, Issue 40 https://doi.org/10.1002/adfm201301557	journal	July 2013
A Hybrid Planar-Mixed Molecular Heterojunction Photovoltaic Cell Xue, J.; Rand, B. P.; Uchida, S. Advanced Materials, Vol. 17, Issue 1, p. 66-71 https://doi.org/10.1002/adma.200400617	journal	January 2005
Organic Single Crystal Field-effect Transistors Based on 6H-pyrrolo[3,2-b:4,5-b´]bis[1,4]benzothiazine and its Derivatives Wei, Zhongming; Hong, Wei; Geng, Hua Advanced Materials, Vol. 22, Issue 22 https://doi.org/10.1002/adma.201000088	journal	June 2010
Indigo - A Natural Pigment for High Performance Ambipolar Organic Field Effect Transistors and Circuits Irimia-Vladu, Mihai; Głowacki, Eric D.; Troshin, Pavel A. Advanced Materials, Vol. 24, Issue 3 https://doi.org/10.1002/adma.201102619	journal	November 2011
Hydrogen-Bonded Semiconducting Pigments for Air-Stable Field-Effect Transistors Głowacki, Eric Daniel; Irimia-Vladu, Mihai; Kaltenbrunner, Martin Advanced Materials, Vol. 25, Issue 11 https://doi.org/10.1002/adma.201204039	journal	December 2012
A Mechanistic Understanding of Processing Additive-Induced Efficiency Enhancement in Bulk Heterojunction Organic Solar Cells Schmidt, Kristin; Tassone, Christopher J.; Niskala, Jeremy R. Advanced Materials, Vol. 26, Issue 2 https://doi.org/10.1002/adma.201303622	journal	October 2013
25th Anniversary Article: Bulk Heterojunction Solar Cells: Understanding the Mechanism of Operation Heeger, Alan J. Advanced Materials, Vol. 26, Issue 1 https://doi.org/10.1002/adma.201304373	journal	December 2013
Effects of Solvent Additives on Morphology, Charge Generation, Transport, and Recombination in Solution-Processed Small-Molecule Solar Cells Kyaw, Aung Ko Ko; Wang, Dong Hwan; Luo, Chan Advanced Energy Materials, Vol. 4, Issue 7 https://doi.org/10.1002/aenm.201301469	journal	January 2014
In Situ Morphology Studies of the Mechanism for Solution Additive Effects on the Formation of Bulk Heterojunction Films Richter, Lee J.; DeLongchamp, Dean M.; Bokel, Felicia A. Advanced Energy Materials, Vol. 5, Issue 3 https://doi.org/10.1002/aenm.201400975	journal	September 2014
The Effect of Fluorination in Manipulating the Nanomorphology in PTB7:PC ₇₁ BM Bulk Heterojunction Systems Guo, Shuai; Ning, Jing; Körstgens, Volker Advanced Energy Materials, Vol. 5, Issue 4 https://doi.org/10.1002/aenm.201401315	journal	October 2014
A Crystal-Engineered Hydrogen-Bonded Octachloroperylene Diimide with a Twisted Core: An n-Channel Organic Semiconductor Gsänger, Marcel; Oh, Joon Hak; Könemann, Martin Angewandte Chemie International Edition, Vol. 49, Issue 4 https://doi.org/10.1002/anie.200904215	journal	October 2009
Hierarchical Assembly of a Phthalhydrazide-Functionalized Helicene Kaseyama, Takahiro; Furumi, Seiichi; Zhang, Xuan Angewandte Chemie International Edition, Vol. 50, Issue 16 https://doi.org/10.1002/anie.201007849	journal	March 2011
Small Molecule Organic Semiconductors on the Move: Promises for Future Solar Energy Technology Mishra, Amaresh; Bäuerle, Peter Angewandte Chemie International Edition, Vol. 51, Issue 9 https://doi.org/10.1002/anie.201102326	journal	February 2012
Photoluminescence and Conductivity of Self-Assembled π–π Stacks of Perylene Bisimide Dyes Chen, Zhijian; Stepanenko, Vladimir; Dehm, Volker Chemistry - A European Journal, Vol. 13, Issue 2 https://doi.org/10.1002/chem.200600889	journal	January 2007
Interconvertible Oligothiophene Nanorods and Nanotapes with High Charge-Carrier Mobilities Yagai, Shiki; Kinoshita, Tetsuro; Kikkawa, Yoshihiro Chemistry - A European Journal, Vol. 15, Issue 37 https://doi.org/10.1002/chem.200901336	journal	September 2009
Supramolecular Engineering of Oligothiophene Nanorods without Insulators: Hierarchical Association of Rosettes and Photovoltaic Properties Yagai, Shiki; Suzuki, Mika; Lin, Xu Chemistry - A European Journal, Vol. 20, Issue 49 https://doi.org/10.1002/chem.201404428	journal	October 2014
Development and testing of a general amber force field Wang, Junmei; Wolf, Romain M.; Caldwell, James W. Journal of Computational Chemistry, Vol. 25, Issue 9 https://doi.org/10.1002/jcc.20035	journal	January 2004
Electrostatic interaction of a solute with a continuum. A direct utilizaion of AB initio molecular potentials for the prevision of solvent effects Miertuš, S.; Scrocco, E.; Tomasi, J. Chemical Physics, Vol. 55, Issue 1 https://doi.org/10.1016/0301-0104(81)85090-2	journal	February 1981
Size analysis of single fullerene molecules by electron microscopy Goel, Anish; Howard, Jack B.; Vander Sande, John B. Carbon, Vol. 42, Issue 10, p. 1907-1915 https://doi.org/10.1016/j.carbon.2004.03.022	journal	January 2004
X-ray crystal structure and vibrational spectra of hydrazides and their metal complexes. Part II. Hexaaquacobalt(II)bis(phthalhydrazidato)tetrahydrate Morzyk-Ociepa, Barbara Journal of Molecular Structure, Vol. 846, Issue 1-3 https://doi.org/10.1016/j.molstruc.2007.01.022	journal	November 2007
Hydrogen-bonded diketopyrrolopyrrole (DPP) pigments as organic semiconductors Głowacki, Eric Daniel; Coskun, Halime; Blood-Forsythe, Martin A. Organic Electronics, Vol. 15, Issue 12 https://doi.org/10.1016/j.orgel.2014.09.038	journal	December 2014
Hydrogen bond directed assembly of oligothiophene/fullerene superstructures on Au(111) Zhao, Xueying; Watkins, Davita L.; Galindo, Johan F. Organic Electronics, Vol. 19 https://doi.org/10.1016/j.orgel.2015.01.022	journal	April 2015
Effect of fluorine substitution on photovoltaic performance of DPP-based copolymer Lee, Jin Yong; Jo, Jea Woong; Jo, Won Ho Organic Electronics, Vol. 20 https://doi.org/10.1016/j.orgel.2015.02.008	journal	May 2015
Organic solar cells: Their developments and potentials Yeh, Naichia; Yeh, Pulin Renewable and Sustainable Energy Reviews, Vol. 21 https://doi.org/10.1016/j.rser.2012.12.046	journal	May 2013
Hydrogen-Bonding-Facilitated Layer-by-Layer Growth of Ultrathin Organic Semiconducting Films Jeong, Sang-Mi; Kim, Taek-Gyoung; Jung, Eunyoung ACS Applied Materials & Interfaces, Vol. 5, Issue 15 https://doi.org/10.1021/am402066t	journal	July 2013
Enhancing the Performance of Solution-Processed Bulk-Heterojunction Solar Cells Using Hydrogen-Bonding-Induced Self-Organization of Small Molecules Lam, Kwan Hang; Foong, Thelese Ru Bao; Ooi, Zi En ACS Applied Materials & Interfaces, Vol. 5, Issue 24 https://doi.org/10.1021/am4042614	journal	November 2013
Hydrogen-bonded Supramolecular π-Functional Materials ^† González-Rodríguez, David; Schenning, Albertus P. H. J. Chemistry of Materials, Vol. 23, Issue 3 https://doi.org/10.1021/cm101817h	journal	February 2011
Effect of Fluorination on the Properties of a Donor–Acceptor Copolymer for Use in Photovoltaic Cells and Transistors Bronstein, Hugo; Frost, Jarvist M.; Hadipour, Afshin Chemistry of Materials, Vol. 25, Issue 3 https://doi.org/10.1021/cm301910t	journal	January 2013
Supramolecular Chemistry and Self-Assembly in Organic Materials Design Stupp, Samuel I.; Palmer, Liam C. Chemistry of Materials, Vol. 26, Issue 1 https://doi.org/10.1021/cm403028b	journal	September 2013
Fluorination of Polythiophene Derivatives for High Performance Organic Photovoltaics Jo, Jea Woong; Jung, Jae Woong; Wang, Hsin-Wei Chemistry of Materials, Vol. 26, Issue 14 https://doi.org/10.1021/cm502229k	journal	July 2014
Improving Solar Cell Efficiency through Hydrogen Bonding: A Method for Tuning Active Layer Morphology Aytun, Taner; Barreda, Leonel; Ruiz-Carretero, Amparo Chemistry of Materials, Vol. 27, Issue 4 https://doi.org/10.1021/cm503915t	journal	February 2015
Bulk Heterojunction Solar Cells: Morphology and Performance Relationships Huang, Ye; Kramer, Edward J.; Heeger, Alan J. Chemical Reviews, Vol. 114, Issue 14 https://doi.org/10.1021/cr400353v	journal	May 2014
Two-Dimensional Self-Assembly of 1-Pyrylphosphonic Acid: Transfer of Stacks on Structured Surface Yip, Hin-Lap; Ma, Hong; Jen, Alex K. -Y. Journal of the American Chemical Society, Vol. 128, Issue 17 https://doi.org/10.1021/ja0563152	journal	May 2006
Synthesis of Fluorinated Polythienothiophene- co -benzodithiophenes and Effect of Fluorination on the Photovoltaic Properties Son, Hae Jung; Wang, Wei; Xu, Tao Journal of the American Chemical Society, Vol. 133, Issue 6 https://doi.org/10.1021/ja108601g	journal	February 2011
Fluorinated Copolymer PCPDTBT with Enhanced Open-Circuit Voltage and Reduced Recombination for Highly Efficient Polymer Solar Cells Albrecht, Steve; Janietz, Silvia; Schindler, Wolfram Journal of the American Chemical Society, Vol. 134, Issue 36 https://doi.org/10.1021/ja305039j	journal	August 2012
Fluorine Substituents Reduce Charge Recombination and Drive Structure and Morphology Development in Polymer Solar Cells Stuart, Andrew C.; Tumbleston, John R.; Zhou, Huaxing Journal of the American Chemical Society, Vol. 135, Issue 5 https://doi.org/10.1021/ja309289u	journal	January 2013
Supramolecular Liquid Crystals. Self-Assembly of a Trimeric Supramolecular Disk and Its Self-Organization into a Columnar Discotic Mesophase Suárez, Mauricio; Lehn, Jean-Marie; Zimmerman, Steven C. Journal of the American Chemical Society, Vol. 120, Issue 37 https://doi.org/10.1021/ja981722h	journal	September 1998
H-Bonding Tuned Self-Assembly of Phenylene–Thiophene–Thiophene–Phenylene Derivatives at Surfaces: Structural and Electrical Studies Bonini, Massimo; Zalewski, Leszek; Orgiu, Emanuele The Journal of Physical Chemistry C, Vol. 115, Issue 19 https://doi.org/10.1021/jp201556y	journal	April 2011
Investigation of Phase Separation in Bulk Heterojunction Solar Cells via Supramolecular Chemistry Siram, Raja Bhaskar Kanth; Stephen, Meera; Ali, Farman The Journal of Physical Chemistry C, Vol. 117, Issue 18 https://doi.org/10.1021/jp401523u	journal	April 2013
Homo- and Heteroassemblies of Lactim/Lactam Recognition Patterns on Highly Ordered Pyrolytic Graphite: An STM Investigation Mourran, Ahmed; Ziener, Ulrich; Möller, Martin Langmuir, Vol. 22, Issue 18 https://doi.org/10.1021/la0609266	journal	August 2006
Significant Improved Performance of Photovoltaic Cells Made from a Partially Fluorinated Cyclopentadithiophene/Benzothiadiazole Conjugated Polymer Zhang, Yong; Zou, Jingyu; Cheuh, Chu-Chen Macromolecules, Vol. 45, Issue 13 https://doi.org/10.1021/ma3009178	journal	June 2012
Grooved Nanowires from Self-Assembling Hairpin Molecules for Solar Cells Tevis, Ian D.; Tsai, Wei-Wen; Palmer, Liam C. ACS Nano, Vol. 6, Issue 3 https://doi.org/10.1021/nn203328n	journal	February 2012
Hydrogen-Bonded Dihydrotetraazapentacenes He, Zikai; Liu, Danqing; Mao, Renxin Organic Letters, Vol. 14, Issue 4 https://doi.org/10.1021/ol203404q	journal	January 2012
Ambipolar Behavior of Hydrogen-Bonded Diketopyrrolopyrrole–Thiophene Co-oligomers Formed from Their Soluble Precursors Suna, Yuki; Nishida, Jun-ichi; Fujisaki, Yoshihide Organic Letters, Vol. 14, Issue 13 https://doi.org/10.1021/ol3013364	journal	June 2012
Molden: a pre- and post-processing program for molecular and electronic structures* Schaftenaar, G.; Noordik, J. H. Journal of Computer-Aided Molecular Design, Vol. 14, Issue 2, p. 123-134 https://doi.org/10.1023/A:1008193805436	journal	February 2000
NIH Image to ImageJ: 25 years of image analysis Schneider, Caroline A.; Rasband, Wayne S.; Eliceiri, Kevin W. Nature Methods, Vol. 9, Issue 7 https://doi.org/10.1038/nmeth.2089	journal	June 2012
Polymer solar cells with enhanced open-circuit voltage and efficiency Chen, Hsiang-Yu; Hou, Jianhui; Zhang, Shaoqing Nature Photonics, Vol. 3, Issue 11, p. 649-653 https://doi.org/10.1038/nphoton.2009.192	journal	November 2009
Hydrogen bonding in bulk heterojunction solar cells: A case study Xiao, Zeyun; Sun, Kuan; Subbiah, Jegadesan Scientific Reports, Vol. 4, Issue 1 https://doi.org/10.1038/srep05701	journal	July 2014
Disentangling the impact of side chains and fluorine substituents of conjugated donor polymers on the performance of photovoltaic blends Yang, Liqiang; Tumbleston, John R.; Zhou, Huaxing Energy Environ. Sci., Vol. 6, Issue 1 https://doi.org/10.1039/C2EE23235A	journal	January 2013
Donor–acceptor–donor (D–A–D) molecules based on isoindigo as active material for organic solar cells Yassin, Ali; Leriche, Philippe; Allain, Magali New J. Chem., Vol. 37, Issue 2 https://doi.org/10.1039/C2NJ40879A	journal	January 2013
Consequences of hydrogen bonding on molecular organization and charge transport in molecular organic photovoltaic materials Schulze, Benjamin M.; Shewmon, Nathan T.; Zhang, Jing J. Mater. Chem. A, Vol. 2, Issue 5 https://doi.org/10.1039/C3TA13529B	journal	January 2014
Herringbone to cofacial solid state packing via H-bonding in diketopyrrolopyrrole (DPP) based molecular crystals: influence on charge transport Dhar, Joydeep; Karothu, Durga Prasad; Patil, Satish Chemical Communications, Vol. 51, Issue 1 https://doi.org/10.1039/C4CC06063F	journal	January 2015
Solid-solid phase interconversion in an organic conductor crystal: hydrogen-bond-mediated dynamic changes in π-stacked molecular arrangement and physical properties Yoshida, Junya; Ueda, Akira; Nakao, Akiko Chem. Commun., Vol. 50, Issue 98 https://doi.org/10.1039/C4CC07810A	journal	January 2014
The future of organic photovoltaics Mazzio, Katherine A.; Luscombe, Christine K. Chemical Society Reviews, Vol. 44, Issue 1 https://doi.org/10.1039/C4CS00227J	journal	January 2015
Estimating the shape and size of supramolecular assemblies by variable temperature diffusion ordered spectroscopy Schulze, Benjamin M.; Watkins, Davita L.; Zhang, Jing Org. Biomol. Chem., Vol. 12, Issue 40 https://doi.org/10.1039/C4OB01373E	journal	January 2014
6H-Pyrrolo[3,2-b:4,5-b′]bis[1,4]benzothiazines: facilely synthesized semiconductors for organic field-effect transistors Hong, Wei; Wei, Zhongming; Xi, Hongxia Journal of Materials Chemistry, Vol. 18, Issue 40 https://doi.org/10.1039/b809486a	journal	January 2008
N-heteroquinones: quadruple weak hydrogen bonds and n-channel transistors Tang, Qin; Liang, Zhixiong; Liu, Jing Chemical Communications, Vol. 46, Issue 17 https://doi.org/10.1039/c001215g	journal	January 2010
The case for organic photovoltaics Darling, Seth B.; You, Fengqi RSC Advances, Vol. 3, Issue 39 https://doi.org/10.1039/c3ra42989j	journal	January 2013
Stepwise self-assembly to improve solar cell morphology Ruiz-Carretero, Amparo; Aytun, Taner; Bruns, Carson J. Journal of Materials Chemistry A, Vol. 1, Issue 38 https://doi.org/10.1039/c3ta12411h	journal	January 2013
Influence of intermolecular interactions of electron donating small molecules on their molecular packing and performance in organic electronic devices Kim, Ki-Hyun; Yu, Hojeong; Kang, Hyunbum Journal of Materials Chemistry A, Vol. 1, Issue 46 https://doi.org/10.1039/c3ta13266h	journal	January 2013
Recent progress in organic photovoltaics: device architecture and optical design Cao, Weiran; Xue, Jiangeng Energy & Environmental Science, Vol. 7, Issue 7 https://doi.org/10.1039/c4ee00260a	journal	January 2014
Correlation between oxidation potential and open-circuit voltage of composite solar cells based on blends of polythiophenes/ fullerene derivative Gadisa, Abay; Svensson, Mattias; Andersson, Mats R. Applied Physics Letters, Vol. 84, Issue 9 https://doi.org/10.1063/1.1650878	journal	March 2004
Mixed donor-acceptor molecular heterojunctions for photovoltaic applications. I. Material properties Rand, Barry P.; Xue, Jiangeng; Uchida, Soichi Journal of Applied Physics, Vol. 98, Issue 12 https://doi.org/10.1063/1.2142072	journal	December 2005
Intermolecular hydrogen-bonded organic semiconductors—Quinacridone versus pentacene Daniel Głowacki, Eric; Leonat, Lucia; Irimia-Vladu, Mihai Applied Physics Letters, Vol. 101, Issue 2 https://doi.org/10.1063/1.4736579	journal	July 2012
Perspectives on Organic Photovoltaics Xue, Jiangeng Polymer Reviews, Vol. 50, Issue 4 https://doi.org/10.1080/15583724.2010.515766	journal	October 2010
Organic Semiconductors and their Applications in Photovoltaic Devices Myers, Jason D.; Xue, Jiangeng Polymer Reviews, Vol. 52, Issue 1 https://doi.org/10.1080/15583724.2011.644368	journal	January 2012
Synthesis and n-Type Field-effect Transistor Characteristics of Dioxopyrrolopyrrole Derivatives Suna, Yuki; Nishida, Jun-ichi; Fujisaki, Yoshihide Chemistry Letters, Vol. 40, Issue 8 https://doi.org/10.1246/cl.2011.822	journal	August 2011
Enhancement of efficiency in organic photovoltaic devices containing self-complementary hydrogen-bonding domains Kumar, Rohan J.; Subbiah, Jegadesan; Holmes, Andrew B. Beilstein Journal of Organic Chemistry, Vol. 9 https://doi.org/10.3762/bjoc.9.122	journal	January 2013

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