Ju B.K. – TechConnect Briefs

Print Transferrable Large-Area Broadband Membrane Reflectors by Laser Interference Lithography

Seo J.-H., Park J., Zhao D., Yang H., Zhou W., Ju B.K., Ma Z., University of Wisconsin-Madison, US

Large-area broadband reflectors based on photonic crystals can enable a number of optoelectronic and photonics devices. To create nano patterns, nanoimprinting, electron-beam lithography and focused ion beam patterning techniques are commonly used. However, these methods [...]

Highly sensitive organic-inorganic heterojunction flexible photodetectors

Seo J.-H., Oh T.Y., Park J., Zhou W., Ju B.K., Ma Z., University of Wisconsin-Madison, US

Heterostructures formed between inorganic and organic materials could lead to many unique device applications due to their unique physical properties, such as mechanical flexibility, large area, low temperature processability and high performance. Since most n-type [...]

Effects of centrifugation on the carboxyl modified single-walled carbon nanotubes suspension

Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Paek K-K, Ju B.K., Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Korea Institute of Science and Technology(KIST), KR

In this paper, the properties of supernatant samples obtained go through steps of acids oxidation and centrifugation is characterized by UV-VIS-NIR spectroscopy and Raman spectroscopy. The ultraviolet-visible-near infrared absorption spectra of each sample show the [...]

Ultra Thin Packaging of the RF-MEMS Devices with Low loss

Park H-W., Park Y.K., Kim C.J., Kim H., Kim Y.K., Kim C.J., Kim H., Kim Y.K., Lee D.J., Park H-W., Park Y.K., Kim C.J., Kim H., Kim Y.K., Ju B.K., Korea Institute of Science and Technology, KR

RF-MEMS devices have the potential for providing an overarching circuit integration technology that can significantly reduce the size, weight and cost. In this research, as ultra thin silicon substrate which has thickness of 50um was [...]