Research

Synthesis of functional nanomaterials

Our research group focuses on the synthesis and application of various inorganic nanoparticles and nanocomposites. In particular, we design synthesis and processing strategies for functional nanomaterials such as ceramic composites and colloidal nanoparticles with the ability to finely tune parameters including particle size, morphology crystallinity, and interfacial properties.

These nanomaterials are applied in optoelectronic devices, sensors, and energy conversion/storage systems, where we also consider both structural and chemical stability are considered to enhance device performance and long-term reliability.

Development of dry-aerosol coating technology at room-temperature

Our research group is developing the room-temperature dry coating process using aerosol deposition (AD). In this process, fine particles are accelerated at high speed and collide with the substrate, leading to room temperature impact consolidation and the hammering effect. These phenomena induce plastic deformation of the particles, enabling the formation of dense and robust ceramic films without the need for heat treatment or sintering.

This technique is applicable to a wide range of materials including perovskites and TiO₂, and can be extended to various applications such as displays, photonic, health care, and energy devices.

CsPbBr3/Ceramic composite films

TiO2-Cu composite film for orthodontic clear aligners

Development of wet-aerosol coating technology at room-temperature

Our research group has developed a unique aerosol-assisted deposition (AAD) process. Unlike AD, which uses dry powders, AAD method utilizes colloidal nanomaterials—such as quantum dots, metals and metal oxides—which are aerosolized and rapidly deposited onto substrates at room temperature.

This wet-aerosol deposition method enables not only efficient thin film formation but also fine patterning, making it highly suitable for advanced applications in displays, optoelectronics, sensors, and more. With its broad material compatibility and patterning capability, AAD process offers a versatile platform for advanced nanomaterial-based device fabrication.

Complete wavelength converter

Pixelized IR photodetector

hoon@deu.ac.kr , DongEui University