New excitonic states at the TMDC/molecule interface (B15*)

该项目的目标是探索由过渡金属二硫化物（TMDC）单层和低密度分子亚单层沉积组成的无机-有机混合系统（HIOS）中的激子物理。我们将使用HIOS来i)探测局部分子诱导的电场和磁场对TMDC激子的捕获，ii)揭示TMDC中的暗激子。我们期望对单个供体、受体、偶极和磁性分子与中性、带电、缺陷结合的TMDC激子之间的相互作用有一个全面的了解。本文研究的HIOS的潜在应用包括电和化学可调的单光子发射器、高灵敏度分子传感器和光电探测器。

The goal of the project is to explore excitonic physics in a hybrid inorganic-organic system (HIOS) composed of transition metal dichalcogenide (TMDC) monolayers with a low-density molecular submonolayer deposited onto it. We will use the HIOS to i) probe trapping of TMDC excitons by localized molecule-induced electric and magnetic fields and ii) reveal dark excitons in TMDCs. We expect to develop a comprehensive understanding of interactions between individual donor, acceptor, dipolar, and magnetic molecules on one hand, and neutral, charged, defect-bound TMDC excitons on the other hand. Among potential applications of the HIOS studied here are electrically and chemically-tunable single photon emitters, highly sensitive molecule sensors, and photodetectors.