TBU Publications
Repository of TBU Publications

Unifying charge generation, recombination, and extraction in low-offset non-fullerene acceptor organic solar cells

DSpace Repository

Show simple item record


dc.title Unifying charge generation, recombination, and extraction in low-offset non-fullerene acceptor organic solar cells en
dc.contributor.author Karki, Akchheta
dc.contributor.author Vollbrecht, Joachim
dc.contributor.author Gillett, Alexander J.
dc.contributor.author Selter, Philipp
dc.contributor.author Lee, Jaewon
dc.contributor.author Peng, Zhengxing
dc.contributor.author Schopp, Nora
dc.contributor.author Dixon, Alana L.
dc.contributor.author Schrock, Max
dc.contributor.author Nádaždy, Vojtech
dc.contributor.author Schauer, Franz
dc.contributor.author Ade, Harald
dc.contributor.author Chmelka, Bradley F.
dc.contributor.author Bazan, Guillermo C.
dc.contributor.author Friend, Richard H.
dc.contributor.author Nguyen, Thuc-Quyen
dc.relation.ispartof Advanced Energy Materials
dc.identifier.issn 1614-6832 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2020
dc.type article
dc.language.iso en
dc.publisher Wiley-V C H Verlag Gmbh
dc.identifier.doi 10.1002/aenm.202001203
dc.relation.uri https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202001203
dc.subject charge extraction en
dc.subject charge generation en
dc.subject charge recombination en
dc.subject non-fullerene acceptors en
dc.subject resonant soft X-ray scattering en
dc.subject solid-state NMR en
dc.subject voltage losses en
dc.description.abstract Even though significant breakthroughs with over 18% power conversion efficiencies (PCEs) in polymer:non-fullerene acceptor (NFA) bulk heterojunction organic solar cells (OSCs) have been achieved, not many studies have focused on acquiring a comprehensive understanding of the underlying mechanisms governing these systems. This is because it can be challenging to delineate device photophysics in polymer:NFA blends comprehensively, and even more complicated to trace the origins of the differences in device photophysics to the subtle differences in energetics and morphology. Here, a systematic study of a series of polymer:NFA blends is conducted to unify and correlate the cumulative effects of i) voltage losses, ii) charge generation efficiencies, iii) non-geminate recombination and extraction dynamics, and iv) nuanced morphological differences with device performances. Most importantly, a deconvolution of the major loss processes in polymer:NFA blends and their connections to the complex BHJ morphology and energetics are established. An extension to advanced morphological techniques, such as solid-state NMR (for atomic level insights on the local ordering and donor:acceptor pi-pi interactions) and resonant soft X-ray scattering (for donor and acceptor interfacial area and domain spacings), provide detailed insights on how efficient charge generation, transport, and extraction processes can outweigh increased voltage losses to yield high PCEs. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1009787
utb.identifier.obdid 43881236
utb.identifier.scopus 2-s2.0-85087158288
utb.identifier.wok 000540877000001
utb.source J-wok
dc.date.accessioned 2020-07-10T13:51:22Z
dc.date.available 2020-07-10T13:51:22Z
dc.description.sponsorship Department of the Navy, Office of Naval Research AwardOffice of Naval Research [N00014-14-1-0580]; Schlumberger foundation; Alexandervon-Humboldt StiftungAlexander von Humboldt Foundation; DOE Office of Science User FacilityUnited States Department of Energy (DOE) [DE-AC02-05CH11231]; MRSEC Program of the NSF - NSF [DMR-170256]; U.S. Office of Naval Research (ONR)Office of Naval Research [N000141712204]; VEGAVedecka grantova agentura MSVVaS SR a SAV (VEGA) [2/0081/18]; Center for Advanced Material Application, SAS; Simons Foundation [601946]
utb.contributor.internalauthor Schauer, Franz
utb.fulltext.affiliation Akchheta Karki, Joachim Vollbrecht, Alexander J. Gillett, Philipp Selter, Jaewon Lee, Zhengxing Peng, Nora Schopp, Alana L. Dixon, Max Schrock, Vojtech Nádaždy, Franz Schauer, Harald Ade, Bradley F. Chmelka, Guillermo C. Bazan, Richard H. Friend, Thuc-Quyen Nguyen* A. Karki, Dr. J. Vollbrecht, N. Schopp, A. L. Dixon, M. Schrock, Prof. G. C. Bazan, Prof. T.-Q. Nguyen Center for Polymers and Organic Solids University of California Santa Barbara (UCSB) Santa Barbara, CA 93106, USA E-mail: quyen@chem.ucsb.edu Dr. A. J. Gillett, Prof. R. H. Friend Optoelectronics Group Cavendish Laboratory University of Cambridge J. J. Thomson Avenue, Cambridge CB3 0HE, UK Dr. P. Selter, Prof. B. F. Chmelka Department of Chemical Engineering University of California Santa Barbara (UCSB) Santa Barbara, CA 93106, USA Prof. J. Lee Department of Chemical Engineering and Applied Chemistry Chungnam National University Daejeon 34134, Republic of Korea Z. Peng, Prof. H. Ade Department of Physics and Organic and Carbon Electronics Lab (ORaCEL) North Carolina State University Raleigh, NC 27695, USA Dr. V. Nádaždy Institute of Physics SAS Centre for Advanced Material Application SAS Dubravsk a cesta 9, Bratislava 845 11, Slovak Republic Prof. F. Schauer Tomas Bata University in Zlin Nad Stráněmi 4511, Zlín CZ 760 05, Czech Republic
utb.fulltext.dates Received: April 6, 2020 Revised: June 5, 2020 Published online:
utb.fulltext.sponsorship A.K., J.V., A.J.G., and P.S. contributed equally to this work. This work was supported by the Department of the Navy, Office of Naval Research Award No. N00014-14-1-0580. A.K. acknowledges funding by the Schlumberger foundation. J.V. acknowledges funding by the Alexandervon-Humboldt Stiftung. This research used resources of the Advanced Light Source, which is a DOE Office of Science User Facility under contract no. DE-AC02-05CH11231. The solid-state NMR experiments were carried out in the Shared Facilities of the UCSB Materials Research Laboratory, supported by the MRSEC Program of the NSF under Award DMR—170256, which is a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org). Z.P. and H.A. were supported by the U.S. Office of Naval Research (ONR), under Award No. N000141712204. V.N. would like to acknowledge VEGA under the project number 2/0081/18 and the Center for Advanced Material Application, SAS. R.H.F. and A.J.G. acknowledge support from the Simons Foundation (grant no. 601946). The authors would like to thank Dr. Alexander A. Mikhailovsky, Dr. Viktor Brus, Dr. Seo-Jin Ko, Katie D. Rosenthal, and Benjamin R. Luginbuhl for helpful discussions.
utb.wos.affiliation [Karki, Akchheta; Vollbrecht, Joachim; Schopp, Nora; Dixon, Alana L.; Schrock, Max; Bazan, Guillermo C.; Nguyen, Thuc-Quyen] Univ Calif Santa Barbara UCSB, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA; [Gillett, Alexander J.; Friend, Richard H.] Univ Cambridge, Cavendish Lab, Optoelect Grp, JJ Thomson Ave, Cambridge CB3 0HE, England; [Selter, Philipp; Chmelka, Bradley F.] Univ Calif Santa Barbara UCSB, Dept Chem Engn, Santa Barbara, CA 93106 USA; [Lee, Jaewon] Chungnam Natl Univ, Dept Chem Engn & Appl Chem, Daejeon 34134, South Korea; [Peng, Zhengxing; Ade, Harald] North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA; [Peng, Zhengxing; Ade, Harald] North Carolina State Univ, Organ & Carbon Elect Lab ORaCEL, Raleigh, NC 27695 USA; [Nadazdy, Vojtech] SAS, Ctr Adv Mat Applicat, Inst Phys, Dubravsk Cesta 9, Bratislava 84511, Slovakia; [Schauer, Franz] Tomas Bata Univ Zlin, Nad Stranemi 4511, CZ-76005 Zlin, Czech Republic[Karki, Akchheta; Vollbrecht, Joachim; Schopp, Nora; Dixon, Alana L.; Schrock, Max; Bazan, Guillermo C.; Nguyen, Thuc-Quyen] Univ Calif Santa Barbara UCSB, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA; [Gillett, Alexander J.; Friend, Richard H.] Univ Cambridge, Cavendish Lab, Optoelect Grp, JJ Thomson Ave, Cambridge CB3 0HE, England; [Selter, Philipp; Chmelka, Bradley F.] Univ Calif Santa Barbara UCSB, Dept Chem Engn, Santa Barbara, CA 93106 USA; [Lee, Jaewon] Chungnam Natl Univ, Dept Chem Engn & Appl Chem, Daejeon 34134, South Korea; [Peng, Zhengxing; Ade, Harald] North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA; [Peng, Zhengxing; Ade, Harald] North Carolina State Univ, Organ & Carbon Elect Lab ORaCEL, Raleigh, NC 27695 USA; [Nadazdy, Vojtech] SAS, Ctr Adv Mat Applicat, Inst Phys, Dubravsk Cesta 9, Bratislava 84511, Slovakia; [Schauer, Franz] Tomas Bata Univ Zlin, Nad Stranemi 4511, CZ-76005 Zlin, Czech Republic
utb.scopus.affiliation Center for Polymers and Organic Solids, University of California Santa Barbara (UCSB), Santa Barbara, CA 93106, United States; Optoelectronics Group Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge, CB3 0HE, United Kingdom; Department of Chemical Engineering, University of California Santa Barbara (UCSB), Santa Barbara, CA 93106, United States; Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 34134, South Korea; Department of Physics and Organic and Carbon Electronics Lab (ORaCEL), North Carolina State University, Raleigh, NC 27695, United States; Institute of Physics, SAS, Centre for Advanced Material Application, SAS, Dubravsk a cesta 9, Bratislava, 845 11, Slovakia; Tomas Bata University in Zlin, Nad Stráněmi 4511, Zlín, CZ 760 05, Czech Republic
utb.fulltext.projects N00014-14-1-0580.
utb.fulltext.projects DE-AC02-05CH11231
utb.fulltext.projects DMR—170256
utb.fulltext.projects N000141712204
utb.fulltext.projects 2/0081/18
utb.fulltext.projects 601946
Find Full text

Files in this item

Show simple item record