"Organic Materials for Near-Infrared Photonics: Design, Synthesis, Property and Device Applications"

“近红外光子学有机材料：设计、合成、性能和器件应用”

• 批准号: 121350-2012
• 负责人: Wang, ZhiYuan
• 金额: $ 5.1万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569178
• 关键词: Organic; Materials; Near; Infrared; Photonics

At present, light-emitting diodes, liquid-crystal display, solar cells and other optoelectronic devices based on organic/polymer materials can only operate in the visible region (400-800 nm). Organic materials that can harvest, convert or produce light in the near-infrared (NIR) region (800-2000 nm) are less known but potentially useful in emerging photonic applications, such as telecom components, bio-imaging, heat absorbers for energy saving, and full-spectrum photovoltaic devices. A primary objective of the proposed research is to address important scientific questions related to organic optoelectronic materials: (1) how to achieve NIR-selective or panchromic absorption via the molecular bandgap tuning, (2) how to realize and utilize the desired NIR chromogenic property, (3) how to improve the quantum efficiency of NIR light emission and photovoltaic conversion. Other objectives are to develop organic photonic materials and to provide the well-trained, highly-qualified personnel. Scientific methods for the development of new optoelectronic materials and devices include (i) the design of low-bandgap materials at the molecular and supramolecular levels and (ii) utilization of unique molecular aggregation-induced effect and surface plasmonic effect. The proposed research will lead to significant advances in the development of photonic materials having the NIR-absorbing, photoluminescent, electroluminescent, photovoltaic and chromogenic properties, and demonstration of unique thermal radiation-absorbing materials and novel organic optoelectronic devices, such as light-emitting diode, photodetectors and molecular switch that can work efficiently in the near-infrared region (e.g., 800-2000 nm). The research program is designed to nurture an appreciation for modern science and technology and develop innovative training modules. The students will be trained to gain knowledge in advanced synthetic chemistry, materials science in general and photonics specifically, and have hands-on experience in synthesis, characterization, device fabrication and testing.

目前，基于有机/聚合物材料的发光二极管、液晶显示器、太阳能电池等光电器件只能在可见光区（400-800 nm）工作。能够在近红外 (NIR) 区域（800-2000 nm）收集、转换或产生光的有机材料鲜为人知，但在新兴光子应用中可能有用，例如电信组件、生物成像、节能吸热器和全光谱光伏器件。 该研究的主要目标是解决与有机光电材料相关的重要科学问题：（1）如何通过分子带隙调节实现近红外选择性或全色吸收，（2）如何实现和利用所需的近红外显色特性，（3）如何提高近红外光发射和光伏转换的量子效率。其他目标是开发有机光子材料并提供训练有素的高素质人员。 开发新型光电材料和器件的科学方法包括（i）在分子和超分子水平上设计低带隙材料，以及（ii）利用独特的分子聚集诱导效应和表面等离子体效应。拟议的研究将在开发具有近红外吸收、光致发光、电致发光、光伏和显色特性的光子材料方面取得重大进展，并展示独特的热辐射吸收材料和新型有机光电器件，例如可以在近红外区域高效工作的发光二极管、光电探测器和分子开关（例如， 800-2000 纳米）。 该研究计划旨在培养对现代科学技术的欣赏并开发创新的培训模块。学生将接受培训，获得先进合成化学、材料科学和光子学方面的知识，并拥有合成、表征、器件制造和测试方面的实践经验。