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Naphthalenediimide Polymers with Finely Tuned In‐Chain π‐Conjugation: Electronic Structure, Film Microstructure, and Charge Transport Properties
Author(s) -
Erdmann Tim,
Fabiano Simone,
MiliánMedina Begoña,
Hanifi David,
Chen Zhihua,
Berggren Magnus,
Gierschner Johannes,
Salleo Alberto,
Kiriy Anton,
Voit Brigitte,
Facchetti Antonio
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201602923
Subject(s) - materials science , conjugated system , polymer , microstructure , electron mobility , copolymer , electron transport chain , chain (unit) , charge (physics) , chemical physics , homo/lumo , electron , charge carrier , transistor , electronic structure , optoelectronics , condensed matter physics , molecule , organic chemistry , composite material , physics , chemistry , quantum mechanics , biochemistry , voltage
Naphthalenediimide‐based random copolymers (PNDI‐TVT x ) with different π‐conjugated dithienylvinylene (TVT) versus π‐nonconjugated dithienylethane (TET) unit ratios ( x = 100→0%) are investigated. The PNDI‐TVT x ‐transistor electron/hole mobilities are affected differently, a result rationalized by molecular orbital topologies and energies, with hole mobility vanishing but electron mobility decreasing only by ≈2.5 times when going from x = 100% to 40%.