| 학회 | 한국재료학회 |
| 학술대회 | 2016년 봄 (05/18 ~ 05/20, 여수 디오션리조트 ) |
| 권호 | 22권 1호 |
| 발표분야 | E. 환경/센서 재료분과 |
| 제목 | Hydrothermally growth Cu Doped ZnO nanorods and their application for gas sensing |
| 초록 | Zinc oxide (ZnO) is an important II-IV group semiconductor material has a wide direct-band gap of 3.37 eV and high-exciton-binding energy of 60 mV at room temperature. ZnO has been studied extensively because of its fascinating morphologies and wide range of applications. In this study the fabrication of Cu doped ZnO nanorods by simple hydrothermal method and their application of gas sensing has been demonstrated. The surface morphology of the ZnO nanostructures was investigated by field emission scanning electron microscopy (FESEM). The structural properties were investigated by X ray diffraction (XRD, Rigaku D/MAX RC) using Cu Kα radiation with a Ni filter.The effect of Cu ion concentration and growth time on the morphology are studied systematically. The gas sensing properties were measured using a picoammeter/voltage source (Keithley 6487) in a chamber with controls for temperature and gas flow. Gas sensing measurement was performed for the detection of H2 and CO gases. The sensing properties of Cu-doped ZnO nanorods were then characterized at different concentration levels and different operating temperatures. The results obtained in this work show that the use of Cu as a dopant in ZnO nanorods processed by hydrothermal produces excellent catalysts for sensing. Acknowledgement This work (Grants No. C0352840) was supported by Business for Cooperative R&D between Industry, Academy, and Research Institute funded Korea Small and Medium Business Administration in 2015. |
| 저자 | Eadi Sunil Babu, Sungjin Kim |
| 소속 | School of Advanced Materials & Engineering |
| 키워드 | Zinc oxide; Doping; Hydrothermal; Gas sensor; Catalyst |
