| 학회 |
한국재료학회 |
| 학술대회 |
2015년 봄 (05/14 ~ 05/15, 구미코) |
| 권호 |
21권 1호 |
| 발표분야 |
G. 나노/박막 재료 |
| 제목 |
Microwave-assisted low-temperature synthesis of CuBO2 and its electrical properties |
| 초록 |
With the increasing demand for promising oxide materials in semiconductor industry delafossite materials have come up with satisfactory performance as conducting oxides. Copper boron oxide (CuBO2) is such a transparent conducting oxide with p-type nature, whose electrical properties is promising for high speed device applications. Here we report a novel way to synthesize CuBO2 nanostructure using microwave. Copper nitrate trihydrate (Cu(NO3)2.3H2O) and boric acid (H3BO3) were used as Cu and B precursors, respectively. The growth time and temperature were optimized at 2 h and 200 ºC, respectively. From scanning electron microscopy it was observed that the material has nanorod like shape with an average length of 500 nm. The UV-VIS spectral analysis revealed a sharp transition corresponding to around 4 eV. Hall measurements showed a high carrier concentration of 1018 cm-3 with p-type nature and reasonably good mobility of 2 cm2/ V-s with a resistivity of 0.36 Ω-cm. |
| 저자 |
Pranab Biswas1, Sung Doo Baek2, Yun Cheol Kim1, Do Hoon Kim2, Do Kyun Kwon1, Jong Woo Kim2, Ji Hyeon Park1, Tae-Il Lee2, Jae-Min Myoung1
|
| 소속 |
1Department of Materials Science and Engineering, 2Yonsei Univ. |
| 키워드 |
Delafossite; p-type; Microwave; Nanorod; Transparent conducting oxide
|
| E-Mail |
|
