Effect of rubbed polyimide layer on the field-effect mobility in pentacene thin-film transistors
Seok-Ju Kang,Yong-Young Noh,Kang-Jun Baeg,Jieun Ghim,Jeong-Ho Park,Dong-Yu Kim,Jong Soo Kim,Jong Hwan Park,Kilwon Cho +8 more
TLDR
In this article, the authors investigated preferentially oriented pentacene grains on rubbed polyimide (PI) layers under various conditions, such as substrate temperature and cumulative rubbing number.Abstract:
We investigated preferentially oriented pentacene grains on rubbed polyimide (PI) layers under various conditions, such as substrate temperature and cumulative rubbing number. In case of pentacene thin films deposited on rubbed PI at room temperature (RT), compared to unrubbed, the field-effect mobilities were improved by two- to threefold in contrast to the cases of elevated temperature. From the results of crystalline in-plane orientation and thin-film versus bulk-phase ratio, we proposed that pentacence crystalline orientation on a rubbed PI layer could be more favorable at RT, whereas the heating energy might weaken the interaction energy between pentacene molecules and aligned PI layer.read more
Citations
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Quantitative determination of organic semiconductor microstructure from the molecular to device scale.
TL;DR: The authors would like to thank M. Chabinyc, H. Ade, B. Noriega, K. Vandewal, and D. Duong for fruitful discussions in the preparation of this review and the Center for Advanced Molecular Photovoltaics for funding.
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Large modulation of carrier transport by grain-boundary molecular packing and microstructure in organic thin films
Jonathan Rivnay,Leslie H. Jimison,John E. Northrup,Michael F. Toney,Rodrigo Noriega,Shaofeng Lu,Tobin J. Marks,Antonio Facchetti,Alberto Salleo +8 more
TL;DR: It is shown that the molecular packing motif (that is, herringbone versus slip-stacked) plays a decisive part in grain-boundary-induced transport anisotropy in PDI8-CN2, providing important guidelines for designing device-optimized molecular semiconductors.
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Unconventional face-on texture and exceptional in-plane order of a high mobility n-type polymer.
Jonathan Rivnay,Michael F. Toney,Yan Zheng,Isaac Kauvar,Zhihua Chen,Veit Wagner,Antonio Facchetti,Alberto Salleo +7 more
TL;DR: Substantial in-plane crystallinity and dominant face-on stacking are observed in thin films of a high-mobility n-type rylene-thiophene copolymer, finding an ordered microstructure at both interfaces, and in the bulk.
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Recent Progress in Aromatic Polyimide Dielectrics for Organic Electronic Devices and Circuits.
TL;DR: A brief overview of recent progress in PI-based dielectrics for organic electronic devices and circuits is provided and an outlook of future research directions and challenges for polyimide dielectric materials is presented.
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Engineering of the dielectric–semiconductor interface in organic field-effect transistors
TL;DR: In this article, the authors give an overview of the recent progress in the engineering of the dielectric-semiconductor interface in OFETs and present novel applications of the interface for achieving multifunctions.
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