Share Email Print

Proceedings Paper

High-conductance low-voltage organic thin film transistor with locally rearranged poly(3-hexylthiophene) domain by current annealing on plastic substrate
Author(s): Zingway Pei; Hsing-Wang Tsai; Hsin-Cheng Lai
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The organic material based thin film transistors (TFTs) are attractive for flexible optoelectronics applications due to the ability of lager area fabrication by solution and low temperature process on plastic substrate. Recently, the research of organic TFT focus on low operation voltage and high output current to achieve a low power organic logic circuit for optoelectronic device,such as e-paper or OLED displayer. To obtain low voltage and high output current, high gate capacitance and high channel mobility are key factors. The well-arranged polymer chain by a high temperature postannealing, leading enhancement conductivity of polymer film was a general method. However, the thermal annealing applying heat for all device on the substrate and may not applicable to plastic substrate. Therefore, in this work, the low operation voltage and high output current of polymer TFTs was demonstrated by locally electrical bias annealing. The poly(styrene-comethyl methacrylate) (PS-r-PMMA) with ultra-thin thickness is used as gate dielectric that the thickness is controlled by thermal treatment after spin coated on organic electrode. In electrical bias-annealing process, the PS-r- PMMA is acted a heating layer. After electrical bias-annealing, the polymer TFTs obtain high channel mobility at low voltage that lead high output current by a locally annealing of P3HT film. In the future, the locally electrical biasannealing method could be applied on plastic substrate for flexible optoelectronic application.

Paper Details

Date Published: 24 February 2016
PDF: 7 pages
Proc. SPIE 9745, Organic Photonic Materials and Devices XVIII, 97450H (24 February 2016); doi: 10.1117/12.2211672
Show Author Affiliations
Zingway Pei, National Chung Hsing Univ. (Taiwan)
Hsing-Wang Tsai, Kingyoup Optronics (Taiwan)
Hsin-Cheng Lai, National Chung Hsing Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9745:
Organic Photonic Materials and Devices XVIII
Christopher E. Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

© SPIE. Terms of Use
Back to Top