To meet the demand of emerging technologies, such as the Internet of Things (IoT) sensing, high-speed wireless communication, and artificial photosynthesis, materials with controllable physical properties and compatible fabrication methods for low-cost, large-area, and flexible device applications are required. Colloidal nanocrystals (NCs) stand out as one promising platform with highly tunable nanocrystalline cores and ligand shells. Chemically synthesized NC dispersions can assemble into thin films through solution-based deposition along with patterning techniques to construct various device stacks. Therefore, to enable NC functional devices for real-world applications, systematic efforts are needed to enhance the efficiency, stability, and scalable manufacturing of these nanodevices.
This talk will highlight our previous works about developing heavy-metal-free NC materials and efficient surface modification for near-infrared optoelectronic devices and advancing scale-up fabrication of NC sensor devices for IoT technologies. The talk will also include our recent work on the nanoprinting of NCs to acheive multi-material and multi-functional devices.
Professor Leo Tianshuo Zhao joined the Department of Electrical and Electronic Engineering as Assistant Professor in Sep. 2022. He obtained his bachelor’s and PhD degrees from Tsinghua University in 2011, and the University of Pennsylvania in 2019, respectively. He then received postdoctoral training in the Department of Chemical and Environmental Engineering at Yale University and in the Engineering Research Center (ERC) for the Internet of Things for precision agriculture (IoT4Ag) at the University of Pennsylvania, respectively.
Clean water and clean air are vital for public health. This project focuses on developing high-efficiency and environmentally sustainable filters for removing harmful air/water pollutants. The team has developed novel architectures and functionalities for the filters to achieve high permeance, high removal efficiency, and excellent reusability.
