ORGANIC LIGHT EMITTING TRANSISTORS FOR FLEXIBLE DISPLAYS

用于柔性显示器的有机发光晶体管

• 批准号: 14390012
• 负责人: KUDO Kazuhiro
• 金额: $ 6.53万
• 依托单位: CHIBA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14390012/
• 关键词: Organic Light Emitting Transistor; Static Induction Transistor; Flexible displays; Organic Semiconductors; Vertical Transistors; Organic Electro-luminescence; Schottky Gate; Photo-thyristor; 真空蒸着膜

Organic light emitting transistors(OLET) which are vertically combined with the organic static induction transistor(OSIT) and organic light emitting diode(OLED) are fabricated and the device characteristics are investigated. OSIT using copper phthalocyanine(Pc) and α-NPD with grid-type Al gate electrodes showed basic SIT characteristics and relatively high-current density and high-speed operation. It is found that the characteristics of OSIT are strongly affected by the controllability of the grid-type Al gate electrode. In order to realize the flexible electronic circuits and displays, we have fabricated OSIT on plastic substrates using pentacene film and Al gate electrode. The OSIT febricated on plastic substrate show almost same characteristics comparing with those of non-flexible OSIT on glass substrate. The OLET is a suitable element for flexible sheet display's. High luminance modulations by low gate voltage were observed in the OLET by optimizing the gate electrode and layer thickness. The relatively high on/off ratio and operational speed of approximately 100 and 300 Hz are obtained. These results demonstrate that the OLET examined here is expected for the application to display devices. Furthermore, we have investigated the basic properties of photo-thyristor devices and the possibility of self-holding-type devices was examined.

采用铜酞菁(Pc)和带有栅极的α-NPD，制作了与有机静电感应晶体管(OSIT)和有机发光二极管(OLED)垂直组合的有机发光晶体管(OLET)，并研究了OSIT的器件特性。栅型Al栅电极表现出基本的SIT特性以及相对高的电流密度和高速运行，发现栅型Al栅电极的可控性强烈影响OSIT的特性。为了实现柔性电子电路和显示器，我们使用并五苯薄膜和铝栅电极在塑料基板上制造了OSIT，与玻璃基板上的非柔性OSIT相比，其表现出几乎相同的特性。通过优化栅电极和层厚度，在 OLET 中观察到了一种适合柔性薄板显示器的高亮度调制，相对较高的开/关比和大约 100 的运行速度。获得了 300 Hz 和 300 Hz 这些结果表明，这里研究的 OLET 有望应用于显示设备。此外，我们还研究了光电晶闸管器件的基本特性，并检验了自保持型器件的可能性。

项目成果

Generation of Stable Calamitic Liquid-Crystal Phases with Lateral Intermolecular Hydrogen Bonding

• DOI: 10.1021/cm049574j
• 发表时间: 2004-05
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Takashi Kajitani;S. Kohmoto;and Makoto Yamamoto;K. Kishikawa

Characterization of Organic Nano-Transistors Using a Conductive AFM Probe

使用导电 AFM 探针表征有机纳米晶体管

• 发表时间: 2003
• 期刊: Thin Solid Films 438-439
• 作者: 岡ノ谷一夫;M.Nakamura
• 通讯作者: M.Nakamura

田中, 飯塚, 酒井, 中村, 工藤: "有機発光トランジスタ特性のゲート電極形状依存性(II)"第50回応用物理学関係連合講演会. 1406 (2003)

Tanaka、Iizuka、Sakai、Nakamura、Kudo：“有机发光晶体管特性的栅电极形状依赖性（II）”第 50 届应用物理学会会议 1406（2003）。

Fabrication and device characterization of organic light emitting transistors

• DOI: 10.1016/s0040-6090(03)00751-x
• 发表时间: 2003-08-22
• 期刊: THIN SOLID FILMS
• 影响因子: 2.1
• 作者: Kudo, K;Tanaka, S;Nakamura, M
• 通讯作者: Nakamura, M

田中, 家地, 飯塚, 中村, 工藤: "ペンタセン薄膜を用いた有機LED駆動用トランジスタの作製"電子情報通信学会論文誌. J85-C・12. 1057-1063 (2002)

Tanaka、Ieji、Iizuka、Nakamura、Kudo：“使用并五苯薄膜制造有机 LED 驱动晶体管”J85-C·12 (2002)。