Ionic/electronic coupling to control the charge transport and optical properties of semiconductors

电子材料是当今社会的核心，是信息技术和可持续能源等领域的关键支柱。 提高电子材料性能的新策略对明亮、高效的光源和高效的太阳能电池等应用的需求很高。 为了在这个方向上取得重大进展，我将采用一种基于离子/电子耦合的激发式策略来提高半导体中的电荷载流子密度。这种耦合将基于使用电解液介质(盐溶液、离子液体)与结合在晶体管结构中的半导体接触。通过双电层的静电掺杂可以产生较高的电荷密度。 在本研究计划中，我将重点介绍有机(分子和聚合物)和无机(金属氧化物)半导体的光物理和传输物理方面，在这些半导体中，将通过使用电解液介质来实现高电荷密度。在整个计划中，设备将被用作研究基本材料属性的工具。 在这个研究项目中培训的学生将受益于它的多学科性质，并将获得材料加工、电子/光学材料表征、显微镜和设备物理方面的能力。他们将利用这种多学科培训，在加拿大工业、学术界和政府实验室成功发展自己的职业生涯。

Electronic materials are at the heart of our today's society, where they are the critical underpinning in fields such as information technology and sustainable energy. Novel strategies to enhance the performance of electronic materials are in high demand for applications such as bright and efficient light sources and efficient solar cells. To make a significant progress in this direction, I will adopt an exciting strategy based on IONIC/ELECTRONIC COUPLING to enhance the charge carrier density in semiconductors. The coupling will be based on the use of electrolyte dielectrics (salt solutions, ionic liquids) in contact with the semiconductor incorporated in a transistor structure. A high charge density will be induced by electrostatic doping via an electrical double layer. In this Research Program, I will focus on photophysics and transport physics aspects of organic (molecules and polymers) and inorganic (metal oxides) semiconductors where high charge density will be achieved through the use of electrolyte dielectrics. Devices will be employed throughout the Program as tools to investigate fundamental materials properties. The students trained within this Research Program will benefit of its multidisciplinary nature and will acquire competences in materials processing, electrical/optical materials characterization, microscopy, and device physics. They will take advantage of this multidisciplinary training to successfully develop their careers in Canadian industry, academia, and government laboratories.