Highly Reliable Superhydrophobic Protection for Organic Field-Effect Transistors by Fluoroalkylsilane-Coated TiO2 Nanoparticles

Daekyoung Yoo, Youngrok Kim, Misook Min, Geun Ho Ahn, Der Hsien Lien, Jingon Jang, Hyunhak Jeong, Younggul Song, Seungjun Chung, Ali Javey, Takhee Lee*

*Corresponding author for this work

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

One of the long-standing problems in the field of organic electronics is their instability in an open environment, especially their poor water resistance. For the reliable operation of organic devices, introducing an effective protection layer using organo-compatible materials and processes is highly desirable. Here, we report a facile method for the depositing of an organo-compatible superhydrophobic protection layer on organic semiconductors under ambient conditions. The protection layer exhibiting excellent water-repellent and self-cleaning properties was deposited onto organic semiconductors directly using a dip-coating process in a highly fluorinated solution with fluoroalkylsilane-coated titanium dioxide (TiO2) nanoparticles. The proposed protection layer did not damage the underlying organic semiconductors and had good resistance against mechanical-, thermal-, light-stress-, and water-based threats. The protected organic field-effect transistors exhibited more-reliable electrical properties, even when exposed to strong solvents, due to its superhydrophobicity. This study provides a practical solution with which to enhance the reliability of environmentally sensitive organic semiconductor devices in the natural environment.

原文English
頁(從 - 到)11062-11069
頁數8
期刊ACS Nano
12
發行號11
DOIs
出版狀態Published - 27 十一月 2018

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