| 학회 |
한국재료학회 |
| 학술대회 |
2015년 봄 (05/14 ~ 05/15, 구미코) |
| 권호 |
21권 1호 |
| 발표분야 |
G. 나노/박막 재료 |
| 제목 |
Synthesis and Characterization of 0.65 Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 Nanowires and their Piezoelectric Performance |
| 초록 |
Piezoelectric materials that convert mechanical energy into electrical energy, have been extensively studied for nonvolatile memory and energy harvesters application. Recently, piezoelectric nanostructures have attracted much attention to utilize their piezoelectric properties in the field of miniature electronic devices and self-powering nanodevices. Particularly, The solid solution of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 has higher piezoelectric coefficient (2500pm/V) when compared with other piezoelectric electric ceramics like PbZrTiO3 (300 pm/V), and BaTiO3 (85.3pm/V). Here, we present the synthesis of Lead Magnesium Niobium Titanate (0.65PMN-0.35PT) nanowires by hydrothermal route. The composition of the PMN-PT nanostructure was chosen to be (65:35) located in morphotropic phase boundary region (MPB) as it permits excellent piezoelectric and dielectric properties due to the relaxor-ferroelectric behavior. The role of reaction parameters on the phase evolution and morphology of PMN-PT powders were studied. The perovskite tetragonal phase and composition of synthesized nanostructure were confirmed by XRD, Raman and EDS analysis. The synthesized nanostructures consist of nanowires with some nanocubes structure which was studied by SEM. The high resolution TEM (HR-TEM) image revealed the single crystalline nature of PMN-PT nanowire. For the first time, a simple device was fabricated in order to measure the piezoelectric performance of single PMN-PT nanowire. |
| 저자 |
Brindha Moorthy1, Changyeon Baek2, Seung Jun Lee1, Kwi ll park2, Do Kyung Kim3
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| 소속 |
1Department of Materials Science and Engineering, 2KAIST, 3Agency for Defense Development |
| 키워드 |
PMN-PT nanowires; Hydrothermal; Piezoelectric materials
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| E-Mail |
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