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Tailoring the Dielectric Layer Structure for Enhanced Carrier Mobility in Organic Transistors: The Use of Hybrid Inorganic/Organic Multilayer Dielectrics
Author(s) -
de Pauli Muriel,
Zschieschang Ute,
Barcelos Ingrid D.,
Klauk Hagen,
Malachias Angelo
Publication year - 2016
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201500402
Subject(s) - materials science , dielectric , optoelectronics , transistor , thin film transistor , electron mobility , gate dielectric , interface (matter) , surface finish , polarization (electrochemistry) , layer (electronics) , nanotechnology , engineering physics , computer science , electrical engineering , voltage , physics , composite material , engineering , capillary number , capillary action , chemistry
Hybrid (organic‐inorganic) multilayers are used as gate dielectric layers on thin‐film transistors. Larger charge‐carrier mobility and better operational stability are observed in comparison with transistors using simpler gate dielectrics. The interface roughness is identified as the major factor determining the carrier mobility of the devices. Effects of polarization and charge trapping arising from the interface roughness are discussed.