Professor of Chemical Engineering

Research Areas

Energy Conversion Nanomaterials

Research Interests

PEROVSKITE SOLAR CELL
Long-term stable perovskite solar cell was first reported by Park’s group in 2012, which opened new research area so-called perovskite photovoltaics. We have been doing researches on materials and devices engineering for high efficiency perovskite solar cell. We are developing superb efficiency perovskite solar cells along with long-term stable large-area processing technologies for commercialization.

RESISTIVE MEMORY (MEMRISTOR)
Memristor known as a 4th element in circuit is promising nonvolatile memory. We have been working on organic-inorganic halide perovskite for low switching voltage, fast switching speed and high on-off ratio memristor

X-RAY IMAGING & LED
Organic-inorganic halide perovskite can be excellent candidates for X-ray imaging and LED materials. We are developing halide perovskite films for extremely high sensitivity X-ray imaging system. We are also involved in very bright LED devices based on organic-inorganic halide perovskite, where we are developing very high EQE LED materials.

Selected Publications

1.”Pseudo First-Order Adsorption Kinetics of N719 Dye on TiO2 Surface”,
ACS Applied Materials & Interfaces, 3, p1953 (2011)

2.”Selective positioning of organic dyes in a mesoporous inorganic film”,
Nature Materials, 8, p665 (2009)

3.”Fabrication of Hetersensitizer-Junction Dye-Sensitized Solar Cells”,
Applied Physics Letters, 92, p142103 (2008)

4.”Fabrication of Hetersensitizer-Junction Dye-Sensitized Solar Cells”, Applied Physics Letters, 92, p142103 (2008)

5.”Chemical sintering of nanoparticles: A methodology for low-temperature fabrication of dye-sensitized solar cells”, Advanced Materials 17, pp2349-2353 (2005)

Professional Experience

박사후 연구원(ICMCB-CNRS, 1996-1997;NREL, 1997-1999)
센터장/책임연구원 (KIST 태양전지센터, 2005-2009)