Performance of Pentacene Based Organic Thin Film Transistor with an Octadecyltrichlorosilane Self-Assembled Monolayer Interface

被引：0

作者：

Babajanyan, A. ^{[1
]}

Minasyan, B. ^{[1
]}

Movsisyan, A. ^{[1
]}

Friedman, B. ^{[2
]}

Lee, K. ^{[3
]}

机构：

[1] Yerevan State Univ, Yerevan, Armenia

[2] Sam Houston State Univ, Huntsville, TX 77340 USA

[3] Sogang Univ, Seoul, South Korea

来源：

JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES | 2021年 / 56卷 / 03期

关键词：

pentacene; organic thin film transistor; octadecyltrichlorosilane; self-assembled monolayer; MORPHOLOGY;

D O I：

10.3103/S1068337221030087

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The performance of a pentacene organic thin film transistor (OTFT) is discussed here where the substrate consists of a self-assembled monolayer (SAM) formed from octadecyltrichlorosilane (OTS) on the gate insulator. By changing the substrate from hydrophilic to hydrophobic interface defects are minimized. OTS SAM was studied for two samples according to OTS density 0.5 wt % and 1.0 wt % based on chloroform solution. The water contact angle was measured to investigate OTS growth and distribution. AFM and SEM were used to give organic thin film topography and morphology. The OTFT with 0.5 wt % OTS has a higher mobility and on/off ratio than the OTFT with 1.0 wt % OTS but has an increased threshold voltage. At the same time, the hysteresis at room temperature almost disappeared due to the OTS SAM processing.

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收藏

页码：208 / 213

页数：6

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