Yoon J-H – TechConnect Briefs

A MEMS-type Micro Sensor for Hydrogen Gas Detection

Yoon J-H, Kim B.-J., Kim J-S, Kim B.-J., Kim J-S, University of Seoul, KR

In this study, a highly sensitive hydrogen gas sensor of the multi-layer and micro-heater type was designed and fabricated using a microelectromechanical system (MEMS) process. The dimension of fabricated hydrogen gas sensor was 5 mm×4 [...]

Synthesis of ZnO Nanosheets by Exposing Zn Film to Oxygen Plasma at Low Temperatures

Yoon J-H, Kangwon National University, KR

We report that the well-defined ZnO nanosheets can be synthesized by directly exposing Zn film to oxygen plasma produced by PECVD method using N2O gas at temperatures below 350 oC. FESEM, XRD, TEM, and PL [...]

Synthesis of SiOx Nanowires at Low Temperatures Using Zn Catalyst

Choi C-S, Yoon J-H, Kangwon National University, KR

we report that the SiOx NWs can be synthesized by directly exposing Zn film to atomic oxygen and silicon plasma mixture produced by PECVD method using a mixture of SiH4 and N2O gas at temperatures [...]

Synthesis of Cobalt-based Nanoparticles in Silicon Dioxide for Nonvolatile Memory Applications

Yoon J-H, Kangwon National University, KR

In this study, we report the direct growth of cobalt (Co) silicide nanocrystals (NCs) by thermally annealing of a simple sandwich structure consisting of an ultrathin Co layer sandwiched between two silicon-rich oxide (SiOx) layers, [...]