Processable High Electron Mobility pi-Copolymers via Mesoscale Backbone Conformational OrderingVisa övriga samt affilieringar
2021 (Engelska)Ingår i: Advanced Functional Materials, ISSN 1616-301X, E-ISSN 1616-3028, Vol. 31, nr 15, artikel-id 2009359Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
The synthesis and experimental/theoretical characterization of a new series of electron-transporting copolymers based on the naphthalene bis(4,8-diamino-1,5-dicarboxyl)amide (NBA) building block are reported. Comonomers are designed to test the emergent effects of manipulating backbone torsional characteristics, and density functional theory (DFT) analysis reveals the key role of backbone conformation in optimizing electronic delocalization and transport. The NBA copolymer conformational and electronic properties are characterized using a broad array of molecular/macromolecular, thermal, optical, electrochemical, and charge transport techniques. All NBA copolymers exhibit strongly aggregated morphologies with significant nanoscale order. Copolymer charge transport properties are investigated in thin-film transistors and exhibit excellent electron mobilities ranging from 0.4 to 4.5 cm(2) V-1 s(-1). Importantly, the electron transport efficiency correlates with the film mesoscale order, which emerges from comonomer-dependent backbone planarity and extension. These results illuminate the key NBA building block structure-morphology-bulk property design relationships essential for processable, electronics-applicable high-performance polymeric semiconductors.
Ort, förlag, år, upplaga, sidor
WILEY-V C H VERLAG GMBH , 2021. Vol. 31, nr 15, artikel-id 2009359
Nyckelord [en]
n‐ type transport; organic transistors; polymer semiconductors
Nationell ämneskategori
Den kondenserade materiens fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-173907DOI: 10.1002/adfm.202009359ISI: 000616749300001OAI: oai:DiVA.org:liu-173907DiVA, id: diva2:1536081
Anmärkning
Funding Agencies|Center for Light Energy Activated Redox Processes (LEAP), an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy SciencesUnited States Department of Energy (DOE) [DE-SC0001059]; AFOSRUnited States Department of DefenseAir Force Office of Scientific Research (AFOSR) [FA9550-18-1-0044]; Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]; DOE Office of ScienceUnited States Department of Energy (DOE) [DE-AC02-06CH11357]; U.S. Department of Commerce, National Institute of Standards and Technology, as part of the Center for Hierarchical Materials Design (CHiMaD) [70NANB14H012]; Qatar NPRP grant [7286-1-046]; Shenzhen Peacock Plan project [KQTD-20140630110339343]; VINNOVAVinnova [2015-04859]; Swedish Research CouncilSwedish Research CouncilEuropean Commission [2016-03979]; MRSEC Program of the Materials Research Center at Northwestern University [NSF DMR- 1720139]; Northwestern University, National Science Foundation (NSF) under NSF [CHE-1048773]; Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource [NSF NNCI-1542205]; State of Illinois; International Institute for Nanotechnology (IIN); Junta de AndaluciaJunta de Andalucia [UMA18-FEDERJA-080, P18-FR-4559]; MICINNSpanish GovernmentEuropean Commission [PID2019-110305GB-I00]
2021-03-092021-03-092022-03-18