Materials Korea A comprehensive. Materials research institute leading in materials technology.

Surface Technology Division

Surface Technology Division

Head of Department
Lim, Dong-chan

Department Introduction

Materials Center for Energy Convergence is focusing our efforts to create innovative technical solutions of next generation energy harvesting/storage and convergence materials and device.

  • Renewable energy harvesting materials and device
  • Hydrogen Evolution related materials and stack
  • Electrochemical CO2 conversion to valued chemical synthesis system
  • Battery and Supercapacitor materials and device
  • Hybrid energy related materials and device like Photovoltaic-Thermoelectric-Piezoelectric and etc. for IoT sensor and smart electronics

Major Research Area

Synthesis and fabrication of perovskite solar cells (PSCs) : 5 SCI, 3 patent applied, 1 papers registered
Low-light intensity, semi-transparent organic solar cell (OPVs) : 2 SCI, 3 patent registered, 2 patents applied
Fabrication of transparent silicon thin film solar cell, 1 domestic patent applied
Development of CVD-based 2-inch large-area 2D-MoS2 synthesis and TFT device technology : 4 SCI
Development of AEM electrolysis cell and PEM fuel cell : 3 SCI, 1 patent registered, 4 patents applied
Development of nano-structured electrode materials for rechargeable batteries : 3 SCI papers, 1 domestic patent applied

Major Research Area

Synthesis of eco-friendly perovskite materials and processing optimization
Transparent electrode and nanomaterials for Low-light intensity, semi-transparent organic solar cell (OPVs)
Development of transparent silicon thin film solar cell for Building Integrated Photovoltaic System.
Large-area synthesis of next-generation 2D ultra-thin semiconductor materials and application technology of electronic devices
Development of effective AEM electrolysis cell and PEM fuel cell for H2-ESS system
Development of synthesis method for metal-organic frameworks (MOF)-based electrodes and design strategy for aqueous rechargeable batteries

Future Research Plan

  • Development of energy harvesting/storage system based textile materials
  • Semi-transparent organic solar cell (OPVs) for low-power indoor application
  • Development of transparent silicon thin film solar module technology
  • Technology development of human body attachable patch sensor via new materials
  • Development of highly efficient AEM electrolysis stack and PEM fuel cell and commercialization research
  • Development of novel MOF materials, applicable to both of energy harvesting and storage

Major R&D Activities

Development of eco-friendly perovskite solar cells with carbon electrode

  • Hybrid organic–inorganic perovskite materials have been the subject of considerable attention in recent years, owing to their excellent optical and electrical properties combined with a simple production process and low cost, which together give rise to their excellent potential for application to optoelectronic devices, including photodetectors, light-emitting diodes, and solar cells. However, the reliance on lead is a serious barrier to commercialization, owing to its well-known toxicity. Therefore, the replacement of lead with other metals must be attained to allay environmental concerns.
  • Eco-friendly perovskite solar cells with carbon electrode
  • The enhanced absorption with control of temperature and optimization of morphology
The morphology and absorption change of eco-friendly perovskite solar cells

Development of CVD grown 2D MoS2 TFT array with 2“ wafer

  • In this technology, we successfully demonstrated 2D-MoS2 TFT array devices with 2-inch wafer-scale of large-area/high uniformity by combining sputtering thin film deposition (KIMS unique process) with thermal CVD.
  • Uniform Raman/PL material properties on 2" wafers
  • 1200 transistor arrays on 2 "wafers
  • Device yield: 95%, average charge mobility: 0.8cm2/Vs, ION/IOFF: 4.3 order
2D-MoS2 TFT integrated array device implemented on 2 inch wafer

Development of AEM electrolysis stack using non-precious electrocatalyst

  • Development of the catakysts and stack for the independence & distributed AEM electrolysis which has advantages as high-current density and suing non-precious catalyst for high-quality hydrogen production compared with alkaline and PEM electrolysis systems.
  • Development of the non-precious HER and OER electrocatalyst with high-activity: HER overpotential 121mV(@10mA, vs RHE), OER overpotential 380mV(@10mA, vs RHE)
  • Highly efficient AEM electrolysis stack: efficiency 65%
19 cells AEM electrolysis stack/stack structure/comparison of OER activity