Polyfluorenes as organic semiconductors for polymeric field effect transistors

被引：9

作者：

Brennan, DJ ^{[1
]}

Townsend, PH ^{[1
]}

Welsh, DM ^{[1
]}

Dibbs, MG ^{[1
]}

Shaw, JM ^{[1
]}

Miklovich, JL ^{[1
]}

Boeke, RB ^{[1
]}

Arias, AC ^{[1
]}

Creswell, L ^{[1
]}

MacKenzie, JD ^{[1
]}

Ramsdale, C ^{[1
]}

Menon, A ^{[1
]}

Sirringhaus, H ^{[1
]}

机构：

[1] Dow Chem Co USA, Adv Elect Mat, Midland, MI 48674 USA

来源：

ORGANIC FIELD EFFECT TRANSISTORS II | 2003年 / 5217卷

关键词：

PFET; F8T2; polyfluorenes; organic semiconductors; ink jet printing; polymer electronics;

D O I：

10.1117/12.505749

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Well-characterized F8T2 polyfluorene (Dow Chemical) has been prepared with weight average molecular weights (Mw) ranging from about 20,000 to 120,000. This semiconducting polymer has been used by Plastic Logic to fabricate arrays of 4,800 thin film transistors (TFTs) with 50 dpi, to be used as backplanes for active matrix displays. In this paper, the effects that molecular weight and thermal treatment have on the electrical characteristics of F8T2-based TFTs are reported. First, transistor performance improves with increasing molecular weight, with maximum values of TFT mobility approaching 1 x 10(-2) cm(2)/V-s. Consistently higher mobilities are obtained when the F8T2 semiconductor makes contact with PEDOT/PSS versus gold electrodes. Alignment of F8T2 on a rubbed polyimide substrate is maintained after quenching, as determined by measurement of the dichroic ratios. Early-stage results on the development of inks based on F8T2 polyfluorene are also reported.

引用

页码：1 / 6

页数：6

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