Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5356107 | Applied Surface Science | 2016 | 7 Pages |
Abstract
Phosphoric acid (PA) self-assembled monolayers (SAMs) have been developed for applications in organic field-effect transistors (OFETs). This efficient interface modification is helpful for semiconductor layer to form crystal thin film during vapor deposition. Results show that the PDI-i8C based OFETs with PA SAMs exhibit field-effect mobilities up to 0.014Â cm2Â Vâ1Â sâ1 (with ODPA as SAMs), which is over 500 times higher than the device without SAMs. Also, transistors with Naph6PA as SAMs show up to 1.5Â ÃÂ 10â3Â cm2Â Vâ1Â sâ1. By studying the morphology of semiconductor layer and SAMs surface, it is found that ODPA bilayer structure plays a key role in inducing PDI-i8C to form orderly crystal thin film.
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Authors
Heng Cheng, Jinyue Huai, Li Cao, Zhefeng Li,