Affiliation:
1. Department of Chemistry and INSTM Research Unit University of Pavia Viale Taramelli 12 27100 Pavia Italy
2. Department of Chemistry Center for Light Energy-Activated Redox Processes and the Materials Research Center Northwestern University 2145 Sheridan Road 60208 Evanston Illinois USA
3. School of Energy and Chemical Engineering Perovtronics Research Center Low Dimensional Carbon Materials Center Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil, Ulju-gun 44919 Ulsan South Korea
4. Graduate School of Carbon Neutrality Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil, Ulju-gun 44919 Ulsan South Korea
5. School of Materials Science and Engineering Georgia Institute of Technology 771 Ferst Drive 30332 Atlanta Georgia USA
Abstract
AbstractRealizing efficient all‐polymer solar cell (APSC) acceptors typically involves increased building block synthetic complexity, hence potentially unscalable syntheses and/or prohibitive costs. Here we report the synthesis, characterization, and implementation in APSCs of three new polymer acceptors P1–P3 using a scalable donor fragment, bis(2‐octyldodecyl)anthra[1,2‐b : 5,6‐b’]dithiophene‐4,10‐dicarboxylate (ADT) co‐polymerized with the high‐efficiency acceptor units, NDI, Y6, and IDIC. All three copolymers have comparable photophysics to known polymers; however, APSCs fabricated by blending P1, P2 and P3 with donor polymers PM5 and PM6 exhibit modest power conversion efficiencies (PCEs), with the champion P2‐based APSC achieving PCE=5.64 %. Detailed morphological and microstructural analysis by AFM and GIWAXS reveal a non‐optimal APSC active layer morphology, which suppresses charge transport. Despite the modest efficiencies, these APSCs demonstrate the feasibility of using ADT as a scalable and inexpensive electron rich/donor building block for APSCs.
Funder
Office of Naval Research
National Institute of Standards and Technology
National Science Foundation
U.S. Department of Energy
Ministero dell’Istruzione, dell’Università e della Ricerca
Subject
General Chemistry,Catalysis,Organic Chemistry
Cited by
3 articles.
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