| 학회 |
한국재료학회 |
| 학술대회 |
2011년 봄 (05/26 ~ 05/27, 제주 휘닉스 아일랜드) |
| 권호 |
17권 1호 |
| 발표분야 |
B. Nanomaterials and Processing Technology((나노소재기술) |
| 제목 |
Facile preparation of ferroelectric PbTiO3 nanotubes by the reaction of anodized TiO2 nanotubes with PbO vapor and lead acetate precursor |
| 초록 |
We demonstrate the simple preparation of ferroelectric lead titanate (PbTiO3) nanotubes by reacting anodized TiO2 nanotube arrays with PbO vapor and lead acetate precursor. Self-aligned TiO2 nanotubes were grown by anodization of Ti sheets in 1 M malonic acid containing 0.5 wt% NH4F. Lead acetate was filled in the TiO2 nanotubes to initiate the conversion to PbTiO3 when reacting with PbO vapor. Subsequently, the TiO2 nanotubes were converted into PbTiO3 nanotubes via PbO vapor phase reaction in the furnace. In order to obtain high-quality ferroelectric nanotubes, we explored the PbO reaction at different temperatures. Their morphology and microstructure were examined by X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, ferroelectric properties and switching behavior were determined by piezoresponse force microscopy (PFM). |
| 저자 |
김봉수1, 노광수1, 박문규1, 홍종인2
|
| 소속 |
1한국과학기술원, 2중앙대 |
| 키워드 |
anodization; TiO2; nanotube; ferroelectricity; PbTiO3
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| E-Mail |
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