Development of organic switchable mirrors by active control ofrefractive indices of organic semiconductor thin films

通过主动控制有机半导体薄膜的折射率开发有机可切换镜

• 批准号: 23750205
• 负责人: YOKOYAMA Daisuke
• 金额: $ 2.75万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23750205/
• 关键词: 有機半導体; 光物性; 先端機能デバイス; 化学物理; 環境対応; 非晶質; 屈折率制御; 光伝搬制御; 分子配向; 有機デバイス; 屈折率; 光制御

The research on organic semiconductor devices, such as organic light-emitting diodes and organic thin-film photovoltaics, have been significantly developed recently. However, the light control by organic semiconductor thin-films themselves has never been explored. In this study, we fabricated and analyzed the organic semiconductor films in view of the molecular orientation and polarizability, and achieved a refractive index difference of 0.58, which is a very large value for organic materials. Using the films with the large refractive index difference, we also realized organic mirrors having a reflectivity of 98% and a reflection bandwidth of >100 nm, and demonstrated the lightpropagation control and the photoconductivity. We believe that our results of the light control by organic semiconductors offer new degrees of freedom in optical design of organicsemiconductor devices.

近年来，有机半导体器件如有机发光二极管和有机薄膜光致发光器件的研究取得了显著的进展。然而，通过有机半导体薄膜本身进行光控制的研究还从未被探索过。在本研究中，我们制造并分析了有机半导体薄膜的分子取向和极化率，并实现了0.58的折射率差，这是一个非常大的值为有机材料。利用大折射率差薄膜，我们还实现了反射率为98%，反射带宽>100 nm的有机反射镜，并演示了光传输控制和光电导。我们相信，我们的结果的光控制的有机半导体器件的光学设计提供了新的自由度。

项目成果

Functional group orientation in amorphous films of OLED materials

OLED材料非晶薄膜中的官能团取向

• 发表时间: 2012
• 作者: C. Cai;S.-J. Su;T. Chiba;H. Sasabe;Y.-J. Pu;K. Nakayama;J. Kido;Daisuke Yokoyama
• 通讯作者: Daisuke Yokoyama

IR analysis of functional group orientation in OLED amorphous films

OLED 非晶薄膜中官能团取向的红外分析

• 发表时间: 2012
• 作者: C. Cai;S.-J. Su;T. Chiba;H. Sasabe;Y.-J. Pu;K. Nakayama;J. Kido;Daisuke Yokoyama;Daisuke Yokoyama
• 通讯作者: Daisuke Yokoyama

Molecular orientation in organic light-emitting diodes

有机发光二极管中的分子取向

• 发表时间: 2011
• 作者: Yong-Jin Pu;Noriaki Iguchi;Naoya Aizawa;Hisahiro Sasabe;Ken-ichi Nakayama;Junji Kido;Daisuke Yokoyama
• 通讯作者: Daisuke Yokoyama

Wide-Range Refractive Index Control of Organic Semiconductor Films Toward Advanced Optical Design of Organic Optoelectronic Devices

• DOI: 10.1002/adma.201202422
• 发表时间: 2012-12-11
• 期刊: ADVANCED MATERIALS
• 影响因子: 29.4
• 作者: Yokoyama, Daisuke;Nakayama, Ken-ichi;Kido, Junji
• 通讯作者: Kido, Junji

有機半導体非晶質膜中の官能基配向

有机半导体非晶薄膜中的官能团取向

• 发表时间: 2012
• 作者: H. Sasabe;M. Ishiba;Y.-J. Pu;J. Kido;横山大輔
• 通讯作者: 横山大輔