Projects Synthesis Materials Fabrication Devices Characterization Theory
This year we have nearly 30 projects covering a wide range of nanoscience, including facile synthesis of organic and inorganic nanowires and nanostructures, novel fabrication routes, building of functional bioarchitectures, nanostructured devices and nanowire applications. Please browse the menu (hover on a group and click on the project of choice) to view brief overviews of our projects.
Quasi-Chemical Synthesis and Device Application of CuO and Cu2O Nanostructures and Nanostructured Films
In collaboration with Nadiia Kulyk and Prof. Chan-hwa Chung in the Chemical Engineering Department of Sungkyunkwan University, we are developing a metal organic precursor for the synthesis of functional copper oxide nanostructures and nanostructured films. By simply heating a spin-coated film, a phase of CuO or Cu2O can be achieved on various substrates. Since the precursor can be readily patterned by electron beam lithography, electrohydrodynamic lithography or nanocontact printing the effect of size and morphology of CuO and Cu2O on the device properties can be investigated. Currently we carry out such studies on a spin-coatable CuO glucose sensor and on a hybrid solar cell based on Cu2O.

Typical response of our CuO glucose sensor made by spin coating and patterned by nanoimprint lithography (line width ~300nm)

UV-vis spectra of our Cu2O nanostructures assembled into a thin film after spin coating and heat treatment. Of the two peaks the smaller wavelength corresponds to a second, unexpected and wide band. We expect that the existence of the new band makes it possible to absorb UV-light thus expanding the efficiency of the solar cell device

[1] D.S.Rhen, Nadiia Kulyk, Muhammad Shahid, Chan-hwa Chung, Dae Joon Kang “CuO Nanostructures from an Electroless Method” Ep-III-018, KPS April 2009
[2] D.S.Rhen, Muhammad Shahid, Nadiia Kulyk, Chan-hwa Chung, Daejoon Kang “Characterization ad Electrical Properties of Cu, CuO and Cu2O Thin Films and Nanostructures from Quasi-Chemical Synthesis” D-44, KPS October 2008