본 연구실은 나노 단위의 반도체 소재를 활용한 소자 공정 및 소자 실현에 중점을 두어 연구를 진행하고 있다. 특히, 물리적인etching 등을 이용한top-down방식과 화학적CVD 공정을 이용한bottom-up방식을 활용하여 나노 단위의 반도체 소재(nanowire, nanorod, Graphene)를 합성/제조하고, 이러한 나노소재를building block으로 사용하여 차세대FET, Solar cell, LED, sensor 등 다양한application에 관한 연구를 하고 있다.

 

 

 

 

 

 

 

 

 

 

[1-Dimentional nanomaterial] - Synthesis and doping of semiconductor (Si, Ge, ZnO, In2O3, GaN) nanowires for solar cell and LED applications - Synthesis of vertical arrays of heterostructure nanorods/wires       [2-Dimentional nanomaterial] - Synthesis of large-area graphene using CVD - Graphene doping - 1D-2D hybrids       [1D-2D hybrid nanomaterial]

[Nanopatterning] - Self-assembled nanostructures and nano-patterning - Fabrication and transfer of 3D nanostructure arrays       [Biomimetic technology] - Biomimetic superhydrophobic nanostructures - Biomimetic photonic nanostructures - Biomimetic nanosilification

[Energy storage and harvesting technology] - Lithium Ion Batteries anode materials - Silicon - 2D materials hybrid       [1D-2D hybrid optoelectronics] - Design of 1D-2D hybrid 3D nanostructures - Nanorod-graphene hybrid LEDs - 3D flexible/stretchable LEDs

 

Our research group is interested in exploring the peculiar and fascinating properties of functionally-designed nanomaterials that can be used for efficient transport of electrons and optical excitations, and are thus expected to be critical to the function and integration of nanoscale devices. In particular, we are interested in the synthesis and integration of various types of low-dimensional materials, such as semiconducting 1-dimentional (1D) nanomaterials (typically Si/ZnO/GaN nanowires, nanorods, and tubes), 2D graphene sheets, and 1D-2D hybrids, in which their functions are maximized by the benefits of the unique properties at the nanoscale. We have also achieved diversified nanopatterns by the use of self-assembly and biomimetic organization processes, which is unachievable by current technique. Based on these researches, the next-generation electronic, optoelectronic and energy devices, such as flexible electronics/displays, LEDs, solar cells, secondary batteries, and biomimetic/bio-implantable devices, are being developed. The application fields that our laboratory is investigating nowadays, have a tremendous influence upon the entire departments of cross-industry, and are able to become the fundamental components in the fields of IT, BT, NT, ET, etc.

W. I. Park, D. H. Kim, S.-W. Jung and G.-C. Yi
Meltalorganic vapor-phase epitaxial growth of vertically well-aligned ZnO nanorods", W. I. Park
Applied Physics, , Vol. 0, No. 0, pp. 0~ 0

W. I. Park and G.C Yi
Electroluminescence in n-ZnO nanorod arrays vertically grown on p-GaN
Advanced Materials, , Vol. 0, No. 0, pp. 0~ 0

W. I. Park, G.-C. Yi, M. Kim, and S.J. Pennycook
ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor phase epitaxy
Advanced Materials, , Vol. 0, No. 0, pp. 0~ 0

Won Jun Chang, Su Han Kim, Jiseon Hwang, Jinho Chang, Dong won Yang, Sun Sang Kwon, Jin Tae Kim, Won Woo Lee, Jae Hyung Lee, Hyunjung park, Taeseup Song, In-Hwan Lee, Dongmok Whang and Won Il Park
Controlling electric potential to inhibit solid-electrolyte interphase formation on nanowire anodes for ultrafast lithium-ion batteries
Nature Communications, 2018.08, Vol. 9, No. 3461, pp. 0~ 0

Donghun Lee, Haeil park, Soo Deok Han, Su Han Kim, Woong Huh, Jae Yoon Lee, Yoon Seok Kim, Myung Jin Park, Won Il Park, Chong-Yun Kang and Chul-Ho Lee
Self-Powered chemical Sensing Driven by Graphene-Based Photovoltaic Heterojunctions with Chemically Tunable Built-In Potentials
Small, 2018.11, Vol. 0, No. 0, pp. 0~ 0

Chuang Yue, Zhiming Liu, Won Jun Chang, Won Il Park and Taeseup Song
Hollow C nanobox: An efficient Ge anode supporting structure applied to high-performance Li ion batteries
Electrochimica Acta, 2018.11, Vol. 290, No. 0, pp. 236~ 243

Jae Hyung Lee, Won Woo Lee, Dong Won Yang, Won Jun Chang, Sun Sang Kwon, and Won Il Park
Anomalous Photovoltaic Response of Graphene-on-GaN Schottky Photodiodes
ACS Applied Materials & Interfaces, 2018.4, Vol. 0, No. 0, pp. 0~ 0