| 학회 | 한국재료학회 |
| 학술대회 | 2009년 봄 (05/21 ~ 05/22, 무주리조트) |
| 권호 | 15권 1호 |
| 발표분야 | 반도체재료 |
| 제목 | Effect of seed layer annealing temperature and Growth of ZnO nanorod by hydrothermal method |
| 초록 | One-dimensional (1D) ZnO nanostructures have attracted considerable attention owing to quantum confinement effect and high crystalline quality, their semiconducting and piezoelectric properties. Recently, a number of growth techniques such as, epitaxial electro-deposition, catalyst-assisted vapor-liquid-solid, thermal evaporation, Spray pyrolysis, hydrothermal method. Among these techniques, the hydrothermal technique has the advantages such as high deposition rate, easy control of dopant concentration, and low temperature synthesis. In this work, we studied the effect of the annealing temperature of homo seed layers on the formation of ZnO nanorods grown by hydrothermal method. The growth process consists of two steps. Firstly, the ZnO seed layers were prepared by sol-gel based spin coating process and then heat treatment of seed layers was conducted at various temperatures of 400-700℃ in air ambient for 1 hour. Secondly, the ZnO nanorods were grown on these seed layers by hydrothermal method. The effect of annealing temperature of seed layer on the length and orientation of the nanorods was investigated scanning electron microscopy investigation. Transmission electron microscopy and X-ray diffraction measurement were performed to understand the effect of annealing temperatures of seed layers on the formation of nanorods. Moreover, the optical properties of the seed layers and the nanorods were studied by room temperature photoluminescence. |
| 저자 | 배영숙, 김영이, 조형균, 김동찬, 안철현 |
| 소속 | 성균관대 |
| 키워드 | hydrothermal; ZnO; nanorods; seed layer |
