EAGER: Nanomodular Systems for Efficient Light Emission from a Heterogeneous Integration of Polymers, Two-Dimensional Semiconductors and Insulators

EAGER：通过聚合物、二维半导体和绝缘体的异质集成实现高效发光的纳米模块化系统

• 批准号: 1938179
• 负责人: Ananth Dodabalapur
• 金额: $ 29万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1938179&HistoricalAwards=false
• 关键词: EAGER; Nanomodular; Systems; Efficient; Light

Light emission is an important part of modern technological age. Every major advance in the generation of light from engineered structures has had a huge impact on society and the nation's security. Such previous advances include the semiconductor laser, the light emitting diode, and solid-state lighting. They have revolutionized almost every aspect of life by impacting lighting, communication, information storage, entertainment, and others. It is essential that innovation in this area continues to take place and new types and architectures of light emitting systems be realized that exceed the capabilities of previous technologies. This EArly-concept Grant for Exploratory Research (EAGER) award supports research that allows new types of light emitting structures to be created that combine dissimilar materials in architectures that hold promise for improved functionality. In this research, light emitting polymers are combined with atomically thin semiconductors and quantum dots using a manufacturing approach that integrates multiple materials. This research advances the science and technology of manufacturing to create processes that facilitate such a heterogeneous integration. The availability of nanomodular systems positively impacts U.S. electronics and optoelectronics industries, thus boosting the nation's economy and prosperity. The project involves women and under-represented groups in research and trains engineering students in advanced technologies that are important in next generation manufacturing. The project also exposes students at all levels to cutting-edge research, thus motivating them to pursue careers in science and engineering.The project combines bottom-up (self-assembly) and top-down (lithography) nanomanufacturing approaches to create nanomodular systems for vastly improved functionality of light-emitting structures. The structures are based on combinations of 2D semiconductors, semiconducting polymers, quantum dot nanocrystals, and insulators. Ambipolar injection of electrons and holes by the 2D semiconductor is a crucial component of the research which leads to light emission from either the polymer or the quantum dot via combinations of charge and energy transfer. In such hybrid combinations of materials, the advantageous properties of different materials are combined. For example, 2D semiconductors have good charge injection and transport properties but poor light emission properties. Semiconducting polymers and quantum dots can possess very high light emission efficiencies but have generally poor charge transport properties. In a successful heterogeneous integration, the favorable properties are combined to create a level of performance that is very difficult to attain with the individual materials. The project directly addresses the manufacturing and design challenges that result in a successful functional integration. The design of nanomodular systems is guided by charge transport theory and numerical simulations.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

光发射是现代技术时代的重要组成部分。 工程结构产生光的每一项重大进展都对社会和国家安全产生了巨大影响。 这些先前的进展包括半导体激光器、发光二极管和固态照明。 它们通过影响照明、通信、信息存储、娱乐等，几乎彻底改变了生活的各个方面。 至关重要的是，在这一领域的创新不断发生，并实现新的类型和架构的发光系统，超越了以前的技术的能力。EARLY概念探索性研究资助（EAGER）奖支持允许创建新型发光结构的研究，该结构将联合收割机不同的材料结合在具有改进功能的建筑中。在这项研究中，使用集成多种材料的制造方法将发光聚合物与原子级薄半导体和量子点结合在一起。 这项研究推进了制造业的科学和技术，以创建促进这种异质集成的过程。纳米模块系统的可用性对美国的电子和光电子产业产生了积极影响，从而促进了国家的经济和繁荣。 该项目让妇女和代表性不足的群体参与研究，并培训工程专业的学生掌握对下一代制造业至关重要的先进技术。 该项目还让各个层次的学生接触到前沿研究，从而激励他们追求科学和工程方面的职业生涯。该项目结合了自下而上（自组装）和自上而下（光刻）的纳米制造方法，以创建纳米模块系统，大大改善发光结构的功能。这些结构基于2D半导体、半导体聚合物、量子点纳米晶体和绝缘体的组合。 通过2D半导体的电子和空穴的双极注入是研究的关键组成部分，其通过电荷和能量转移的组合导致聚合物或量子点的光发射。在材料的这种混合组合中，不同材料的有利性质被组合。例如，2D半导体具有良好的电荷注入和传输特性，但发光特性差。半导体聚合物和量子点可以具有非常高的发光效率，但通常具有差的电荷传输性质。在一个成功的异质集成中，有利的特性相结合，创造了一个单独材料很难达到的性能水平。该项目直接解决了制造和设计的挑战，导致成功的功能集成。该奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。