| 학회 | 한국재료학회 |
| 학술대회 | 2009년 봄 (05/21 ~ 05/22, 무주리조트) |
| 권호 | 15권 1호 |
| 발표분야 | 전자재료 |
| 제목 | Synthesis and characterization of (Au/Pt)@SnO2 nanocomposites |
| 초록 | There has been a recent resurgence of interest in metal nanoparticle-embodied metal oxide matrices, spurred on by new applications in diverse fields ranging from nonlinear optics and photocatalytic pollutant degradation through to gas-sensing. The original work in this field was motivated by the unusual material properties of small metal particles in contact with semiconductor matrices and led to the development of powerful, effective medium models to handle the complex material properties of nanocomposites. SnO2 a wide band-gap semiconductor (Eg ≈ 3.5 eV) has been widely used in transparent conducting oxides, semiconductor gas-sensors and semiconductor photocatalysts. Recently few reports expected the potential applications of tin dioxide based nanocompoaites in photocatalysis and solar-cells. Researchers have used various techniques, such as, solid-state technique, impregnation technique (chemical loading), sol-gel processing, etc for preparing tin dioxide nanostructres and thin films. Recently the successful use of metal particles in the tin dioxide matrices has promoted the research activities in the area of metal-semiconductor hybrid nanodevices. Most of the works involved the processing of Au or Ag core and SnO2 shell nanocompoaites. However to the best of our knowledge, hardly any report has discussed about the processing of bimetallic core and SnO2 shell nanocompoaites. In the present paper, we have demonstrated a simple soft-chemical technique for the processing of (Au/Pt)@SnO2 nanocomposites. The phase and morphology of the nanocomposite particles were investigated by X-ray diffraction and electron microscopy techniques respectively. Further studies on the potential applications of these nanocomposites as gas-sensor materials are under investigation. |
| 저자 | Suraj Kumar Tripathy1, Yeon-Tae Yu2, Prabhakar Rai3, Ji-Nyoung Jo2, Nam-Hee Park3 |
| 소속 | 1Division of Metrials Engeenering, 2Division of Advanced Materials Engineering, 3Chonbuk National Univ. |
| 키워드 | Bimetallic; core-shell; gold; soft-chemical synthesis; platinum; tin dioxide |
