Research

We develop highly active, stable, and low-cost electro- and photoelectrochemical (EC & PEC) hydrogen evolution reaction (HER) catalysts based on nanostructured transition metal-based sulfides/oxides/phosphides such as MoS2, MoP, MoO2, Co2O3, etc. We mainly approach efficient transition metal-based oxygen evolution reaction (OER) catalysts via hydrothermal and electrochemical synthesis for energy conversion applications. Our main focus is the development of efficient electrocatalysts for AEMWE.

We develop gas-sensing devices operating at room temperature based on various 2D materials. In addition, we establish a novel strategy to enhance the gas sensing ability using heterostructure between the metal-oxide nanostructure and 2D materials. We also focus on the development of light-induced (visible, IR) chemoresistive gas sensors based on 2D  materials. Visible light illumination can help stable and high responsive operation at room temperature. The 2D materials-based chemoresistive gas sensors would be future applications in the electronic nose. 

We develop highly active, stable, and low-cost electro- and photoelectrochemical (EC & PEC) hydrogen evolution reaction (HER) catalysts based on nanostructured transition metal-based sulfides/oxides/phosphides such as MoS2, MoP, MoO2, Co2O3, etc. We mainly approach efficient transition metal-based oxygen evolution reaction (OER) catalysts via hydrothermal and electrochemical synthesis for energy conversion applications. Our main focus is the development of efficient electrocatalysts for AEMWE.

We develop gas-sensing devices operating at room temperature based on various 2D materials. In addition, we establish a novel strategy to enhance the gas sensing ability using heterostructure between the metal-oxide nanostructure and 2D materials. We also focus on the development of light-induced (visible, IR) chemoresistive gas sensors based on 2D  materials. Visible light illumination can help stable and high responsive operation at room temperature. The 2D materials-based chemoresistive gas sensors would be future applications in the electronic nose. 

2D materials which are sub-nanometer scale layered materials interacting with van der Waals forces are considered promising materials for various electric and electronic applications. We are focusing on how to synthesize 2D materials efficiently using liquid exfoliations and chemical vapor deposition methods. Especially, the semiconducting 2D MX2 and M2X3 (M=metal, X=chalcogenides) materials could be utilized in various semiconducting devices. We further investigate the memory and logic devices.

Chemical Vapor Deposition (CVD) is one of the promising ways to synthesize large-area, high-quality 2D materials such as graphene, MoS2,  etc.  We investigate a facile route to obtain such 2D materials using gas-phase and solution-based precursors. Furthermore, we develop solution-based precursors to easily synthesize the wafer-scale and high-quality 2D materials using thermal reduction reaction with low temperature.