Thrust 2. Hybrid Nanoscale Materials

People

NCCU Faculty: Wu, Tang, Vlahovic

PSU Faculty: Chen, Giebink, Knappenberger, Trolier-McKinstry

Research

Each of the projects in thrust 2 builds on the established research directions and capabilities of collaborators at NCCU and PSU to explore areas of mutual interest. Project 2.1 is at the confluence of ongoing research interests of Tang (modeling, fabrication and characterization of metal nanostructure arrays), Knappenberger (characterization of plasmonic nanocavities, two-dimensional (2D) spectroscopy of excitonic and plasmonic systems), Giebink (strongly coupled systems, polaron-polaritons) and Wu (ultrafast optical microscopy, exciton diffusion). Project 2.2 integrates the high spatial resolution characterization facilities of Wu with the materials synthesis expertise and temperature-dependent optical and electrical characterization capabilities of Giebink to elucidate correlations between local composition fluctuations and carrier dynamics in mixed cation / mixed anion perovskites of high interest to both groups for photovoltaic and lasing applications. Project 2.3 combines the synthetic capabilities of Vlahovic with the characterization and device fabrication capabilities of Trolier-McKinstry and the theoretical modeling expertise of Chen to study the properties and applications of multiferroic materials that are at the focus of all three research groups.

NCCU Faculty Research Interests

The Wu group studies energy transport and charge carrier dynamics in nanoscale materials for next-generation photovoltaics, photodetectors, sensors and transistors. We employ time resolved optical, infrared and terahertz spectroscopy to characterize the evolution of excited charge carriers across broad spatial and temporal ranges. Current research includes: (1) effects of nanoscale compositional and morphological inhomogeneities occurring over multiple length scales on carrier diffusion in organic-inorganic perovskites; (2) controlling energy transport and single photon emission dynamics by strongly coupling semiconductor nanostructures to plasmonic materials.

The Tang group focuses on developing nanophotonics materials and their applications, for the emerging fields of plasmonics and nanophotonics, the ability to engineer metals on nanometric scales allows the development of new devices and the study of exciting physics. Current research projects: (1) Simulations, optimizations, and fabrications of metallic nanostructures and metallic nanoparticles for optical applications; (2) Simulations of the nanostructures for potent microbicidal function.