Abstract
Percolative BaTiO 3/multiwalled carbon nanotube (MWNT) composite thick films were developed using an aerosol deposition (AD) process at room temperature. Well-dispersed mixed powders with various volume ratios were utilized as the starting powders for AD, and dense BaTiO 3/ MWNT composite thick films were successfully fabricated with the starting mixed powders with 0.01 vol% MWNTs. The existence of MWNTs in the composite films was confirmed using Raman spectroscopy. The composite films show a high relative dielectric constant (657 at 1 kHz), which is approximately 7 times larger than that (91 at 1 kHz) of the BaTiO 3 films. In addition, the strong frequency dispersion of the dielectric constant in the low-frequency range was confirmed for the composite films. The dielectric properties of the composite films were investigated using the dielectric mechanism used in percolative composites.
| Original language | English |
|---|---|
| Article number | 09LC07 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 51 |
| Issue number | 9 PART 2 |
| DOIs | |
| Publication status | Published - 2012 Sep |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Percolative BaTiO 3/carbon-nanotube composite films employing aerosol deposition. / Kim, Yoon Hyun; Osada, Minoru; Kim, Hong Ki; Nam, Song Min.
In: Japanese Journal of Applied Physics, Vol. 51, No. 9 PART 2, 09LC07, 09.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Percolative BaTiO 3/carbon-nanotube composite films employing aerosol deposition
AU - Kim, Yoon Hyun
AU - Osada, Minoru
AU - Kim, Hong Ki
AU - Nam, Song Min
PY - 2012/9
Y1 - 2012/9
N2 - Percolative BaTiO 3/multiwalled carbon nanotube (MWNT) composite thick films were developed using an aerosol deposition (AD) process at room temperature. Well-dispersed mixed powders with various volume ratios were utilized as the starting powders for AD, and dense BaTiO 3/ MWNT composite thick films were successfully fabricated with the starting mixed powders with 0.01 vol% MWNTs. The existence of MWNTs in the composite films was confirmed using Raman spectroscopy. The composite films show a high relative dielectric constant (657 at 1 kHz), which is approximately 7 times larger than that (91 at 1 kHz) of the BaTiO 3 films. In addition, the strong frequency dispersion of the dielectric constant in the low-frequency range was confirmed for the composite films. The dielectric properties of the composite films were investigated using the dielectric mechanism used in percolative composites.
AB - Percolative BaTiO 3/multiwalled carbon nanotube (MWNT) composite thick films were developed using an aerosol deposition (AD) process at room temperature. Well-dispersed mixed powders with various volume ratios were utilized as the starting powders for AD, and dense BaTiO 3/ MWNT composite thick films were successfully fabricated with the starting mixed powders with 0.01 vol% MWNTs. The existence of MWNTs in the composite films was confirmed using Raman spectroscopy. The composite films show a high relative dielectric constant (657 at 1 kHz), which is approximately 7 times larger than that (91 at 1 kHz) of the BaTiO 3 films. In addition, the strong frequency dispersion of the dielectric constant in the low-frequency range was confirmed for the composite films. The dielectric properties of the composite films were investigated using the dielectric mechanism used in percolative composites.
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UR - http://www.scopus.com/inward/citedby.url?scp=84867832467&partnerID=8YFLogxK
U2 - 10.1143/JJAP.51.09LC07
DO - 10.1143/JJAP.51.09LC07
M3 - Article
AN - SCOPUS:84867832467
VL - 51
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9 PART 2
M1 - 09LC07
ER -