Infrared Photorefractive and Light-Emitting Polymers for Optical Technologies
用于光学技术的红外光折变和发光聚合物
基本信息
- 批准号:0108696
- 负责人:
- 金额:$ 36万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-09-15 至 2005-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Objectives. We propose an experiment - theory effort focused on the development of two classes of multifunctional organic materials to be used for information technologies. The first class of ma-terials consist of infrared compatible photorefractive polymers that are suitable for reconfigurable filters, switches and interconnects. The second class of materials are pi-conjugated polymers with emission in the infrared. This effort will capitalize on our past experience in developing photorefrac-tive and light emitting polymers through a combination of many-body calculations incorporating electron-electron interactions on these materials and the characterizations of their electrical and nonlinear optical properties. The operation of existing photorefractive and light emitting polymers is restricted to the visible region of the spectrum which prevents their use in telecommunication.Approach. To extend the spectral sensitivity of photorefractive polymers to the infrared we will use multiphoton absorption to generate photoconductivity from high energy two-photon excited states in either a pi-conjugated polymer matrix or an electro-active chromophore dopant. Theo-retical work will be performed in identifying two-photon states from which enhanced photogener-ation efficiency is expected. These results will also guide the design of one-photon photorefractive polymers with sub-millisecond response time. The search for pi-conjugated polymers with photo-luminescence in the infrared will build on our recent discovery of the principle that excited state ordering conducive to light emission at low frequencies is obtained in pi-conjugated polymers with large molecular unit cells. The specific structural requirement is that there exists molecular conju-gation transverse to the direction of conjugation along the polymer chain, leading to longitudinal confinement and transverse delocalization of the optical exciton. Experimental studies will be con-ducted on soluble derivatives of poly(isothianaphthene), which satisfy the structural requirement for infrared emission.Significance and Impact. The proposed infrared compatible photorefractive and light emitting polymers will enable new devices for telecommunication technologies. In spite of the rapid advances made in the area of organic optoelectronics, existing organic materials amid devices operate largely in the visible region of the electromagnetic spectrum. Our work will extend the spectral range of applications, and it is expected that the outcomes of our research will have strong impact on the device physics of organic materials. The aim is not to compete with the technology utilizing con-ventional inorganic semiconductors, but to develop new functionalities and applications, utilizing the unique processing capability of organic materials. Importantly, the strong coupling between experiment and theory will lead to enhanced understanding of the fundamental processes of photo-generation, multiphoton absorption and light emission in organics, an area that is still in its infancy. Finally, the proposed research provides a unique multidisciplinary framework to integrate research and teaching. Students working on the project are exposed to chemistry, optics, engineering, and the fundamental physics of nonlinear absorption, charge-injection, charge- and energy-transfer, and light emission.
目标。我们提出了一项实验-理论工作,重点是开发两类用于信息技术的多功能有机材料。第一类材料是适用于可重构滤光器、开关和互连的红外兼容光折变聚合物。第二类材料是具有红外发射的pi共轭聚合物。这项工作将利用我们过去开发光折变和发光聚合物的经验,通过结合这些材料上的电子-电子相互作用的多体计算以及对它们的电学和非线性光学性质的表征来进行。现有的光折变和发光聚合物的操作仅限于光谱的可见区域,这阻碍了它们在电信领域的应用。为了将光折变聚合物的光谱灵敏度扩展到红外,我们将利用多光子吸收在PI共轭聚合物基质或电活性生色团掺杂剂中从高能双光子激发态产生光电导。将进行理论工作,以确定预期提高光生效率的双光子态。这些结果也将指导具有亚毫秒响应时间的单光子光折变聚合物的设计。寻找具有红外光致发光的PI共轭聚合物将建立在我们最近发现的原理的基础上,即在具有大分子单位晶胞的PI共轭聚合物中获得有利于低频发光的激发态有序。具体的结构要求是沿聚合物链存在与共轭方向垂直的分子共轭,导致光激子的纵向约束和横向离域。将对满足红外发射结构要求的聚异硫杂环芳烃的可溶性衍生物进行实验研究。意义和影响。建议的红外兼容光折变和发光聚合物将使新的电信技术设备成为可能。尽管有机光电子学领域取得了快速的进展,但现有的有机材料在器件中主要工作在电磁光谱的可见光区域。我们的工作将扩大应用的光谱范围,预计我们的研究成果将对有机材料的器件物理产生强烈的影响。其目的不是与使用传统无机半导体的技术竞争,而是利用有机材料的独特处理能力开发新的功能和应用。重要的是,实验和理论之间的强耦合将使人们更好地理解有机物中光产生、多光子吸收和光发射的基本过程,这一领域仍处于起步阶段。最后,提出的研究提供了一个独特的多学科框架来整合研究和教学。从事该项目的学生将接触到化学、光学、工程学,以及非线性吸收、电荷注入、电荷和能量转移以及光发射的基本物理学。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Nasser Peyghambarian其他文献
Tm<sup>3+</sup> and Yb<sup>3+</sup> co-doped tellurite glasses for short cavity optical fiber lasers: Fabrication and optical characterization
- DOI:
10.1016/j.jnoncrysol.2010.03.029 - 发表时间:
2010-10-01 - 期刊:
- 影响因子:
- 作者:
Daniel Milanese;Hrvoje Gebavi;Joris Lousteau;Monica Ferraris;Axel Schülzgen;Li Li;Nasser Peyghambarian;Stefano Taccheo;Francois Auzel - 通讯作者:
Francois Auzel
New stack system for records
新的记录堆叠系统
- DOI:
10.1038/383481a0 - 发表时间:
1996-10-10 - 期刊:
- 影响因子:48.500
- 作者:
Nasser Peyghambarian;Bernard Kippelen - 通讯作者:
Bernard Kippelen
Design and synthesis of chromophores and polymers for electro-optic and photorefractive applications
用于电光和光折变应用的生色团和聚合物的设计与合成
- DOI:
10.1038/42190 - 发表时间:
1997-08-28 - 期刊:
- 影响因子:48.500
- 作者:
Seth R. Marder;Bernard Kippelen;Alex K.-Y. Jen;Nasser Peyghambarian - 通讯作者:
Nasser Peyghambarian
Modeling and optimization of electromagnetic resonances and local intensity enhancements for plasmon metamaterials with sub-wavelength double-slots
亚波长双槽等离子体超材料的电磁共振和局部强度增强的建模和优化
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
Lin Han;Shuqi Chen;Axel Schülzgen;Yong Zeng;Feng Song;Jianguo Tian;Nasser Peyghambarian - 通讯作者:
Nasser Peyghambarian
Nasser Peyghambarian的其他文献
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{{ truncateString('Nasser Peyghambarian', 18)}}的其他基金
Scalable Array Packaging for Optoelectronic Components
光电元件的可扩展阵列封装
- 批准号:
0946397 - 财政年份:2009
- 资助金额:
$ 36万 - 项目类别:
Standard Grant
CIAN's New Testbed for Optical Aggregation Networking (TOAN)
CIAN 的新光聚合网络测试平台 (TOAN)
- 批准号:
0946412 - 财政年份:2009
- 资助金额:
$ 36万 - 项目类别:
Standard Grant
NSF Engineering Research Center for Integrated Access Networks (CIAN)
NSF 集成接入网络工程研究中心 (CAN)
- 批准号:
0812072 - 财政年份:2008
- 资助金额:
$ 36万 - 项目类别:
Cooperative Agreement
Photonic Crystal and Nanostructured Fiber Lasers and Devices
光子晶体和纳米结构光纤激光器和器件
- 批准号:
0725479 - 财政年份:2007
- 资助金额:
$ 36万 - 项目类别:
Standard Grant
NSF-EC Activity: Integration of New Hybrid Materials Containing Biomolecules for the Fabrication of Optical Sensor Systems
NSF-EC 活动:集成含有生物分子的新型混合材料以制造光学传感器系统
- 批准号:
0099862 - 财政年份:2002
- 资助金额:
$ 36万 - 项目类别:
Continuing Grant
Center for Optoelectronic Devices, Interconnects and Packaging (COEDIP)
光电器件、互连和封装中心 (COEDIP)
- 批准号:
0003258 - 财政年份:2000
- 资助金额:
$ 36万 - 项目类别:
Continuing Grant
Organic Photorefractives Multiexcitons and Lasers
有机光折变多激子和激光器
- 批准号:
9712171 - 财政年份:1997
- 资助金额:
$ 36万 - 项目类别:
Standard Grant
U.S.-France Cooperative Research: Development of New Photo-refractive Polymers for Dynamic Holographic Storage Applications
美法合作研究:开发用于动态全息存储应用的新型光折射聚合物
- 批准号:
9415680 - 财政年份:1995
- 资助金额:
$ 36万 - 项目类别:
Standard Grant
Industry/University Cooperative Research Center for Optoelectronic Devices, Interconnects, and Packaging
光电器件、互连和封装产学合作研究中心
- 批准号:
9520256 - 财政年份:1995
- 资助金额:
$ 36万 - 项目类别:
Continuing Grant
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