Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates
Researchers have paid considerable attention to CaCu 3 Ti 4 O 12 (CCTO) due to the colossal dielectric constant over a wide range of frequency and temperature. Despite of the growing number of works dealing with CCTO, there have been few studies of the role played by the substrate in inducing struct...
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todo:paper_01694332_v385_n_p324_Pongpaiboonkul2023-10-03T15:07:09Z Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates Pongpaiboonkul, S. Kasa, Y. Phokharatkul, D. Putasaeng, B. Hodak, J.H. Wisitsoraat, A. Hodak, S.K. Colossal dielectric constant and sol-gel Highly-oriented CaCu 3 Ti 4 O 12 films LaAlO 3 substrate NdGaO 3 substrate Aluminum compounds Calcium compounds Copper compounds Crystal orientation Film growth Gallium compounds Lanthanum compounds Lattice mismatch Neodymium compounds Single crystals Sol-gel process Sol-gels Substrates Titanium compounds X ray diffraction CaCu3Ti4O12 Colossal dielectric constant Dielectric effects Film crystallinity NdGaO3 substrates Preferential orientation Preferred orientations Single crystal substrates Thin films Researchers have paid considerable attention to CaCu 3 Ti 4 O 12 (CCTO) due to the colossal dielectric constant over a wide range of frequency and temperature. Despite of the growing number of works dealing with CCTO, there have been few studies of the role played by the substrate in inducing structural and dielectric effects of this material. In this work, highly-oriented CCTO thin films have been deposited on LaAlO 3 (100), NdGaO 3 (100) and NdGaO 3 (110) substrates using a sol-gel method. These single crystal substrates were chosen in terms of small lattice mismatch between CCTO and the substrate. The X-ray diffraction patterns showed that the CCTO film layers grow with different orientations depending upon the substrate used. We show that the preferred orientation of CCTO thin films can be manipulated to a high degree by growing it on specific crystal planes of the substrates without the use of buffer layers. Colossal dielectric constants are observed in our films which appear to correlate with the film crystallinity and preferred orientation. © 2016 Elsevier B.V. Fil:Hodak, J.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01694332_v385_n_p324_Pongpaiboonkul |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Colossal dielectric constant and sol-gel Highly-oriented CaCu 3 Ti 4 O 12 films LaAlO 3 substrate NdGaO 3 substrate Aluminum compounds Calcium compounds Copper compounds Crystal orientation Film growth Gallium compounds Lanthanum compounds Lattice mismatch Neodymium compounds Single crystals Sol-gel process Sol-gels Substrates Titanium compounds X ray diffraction CaCu3Ti4O12 Colossal dielectric constant Dielectric effects Film crystallinity NdGaO3 substrates Preferential orientation Preferred orientations Single crystal substrates Thin films |
| spellingShingle |
Colossal dielectric constant and sol-gel Highly-oriented CaCu 3 Ti 4 O 12 films LaAlO 3 substrate NdGaO 3 substrate Aluminum compounds Calcium compounds Copper compounds Crystal orientation Film growth Gallium compounds Lanthanum compounds Lattice mismatch Neodymium compounds Single crystals Sol-gel process Sol-gels Substrates Titanium compounds X ray diffraction CaCu3Ti4O12 Colossal dielectric constant Dielectric effects Film crystallinity NdGaO3 substrates Preferential orientation Preferred orientations Single crystal substrates Thin films Pongpaiboonkul, S. Kasa, Y. Phokharatkul, D. Putasaeng, B. Hodak, J.H. Wisitsoraat, A. Hodak, S.K. Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| topic_facet |
Colossal dielectric constant and sol-gel Highly-oriented CaCu 3 Ti 4 O 12 films LaAlO 3 substrate NdGaO 3 substrate Aluminum compounds Calcium compounds Copper compounds Crystal orientation Film growth Gallium compounds Lanthanum compounds Lattice mismatch Neodymium compounds Single crystals Sol-gel process Sol-gels Substrates Titanium compounds X ray diffraction CaCu3Ti4O12 Colossal dielectric constant Dielectric effects Film crystallinity NdGaO3 substrates Preferential orientation Preferred orientations Single crystal substrates Thin films |
| description |
Researchers have paid considerable attention to CaCu 3 Ti 4 O 12 (CCTO) due to the colossal dielectric constant over a wide range of frequency and temperature. Despite of the growing number of works dealing with CCTO, there have been few studies of the role played by the substrate in inducing structural and dielectric effects of this material. In this work, highly-oriented CCTO thin films have been deposited on LaAlO 3 (100), NdGaO 3 (100) and NdGaO 3 (110) substrates using a sol-gel method. These single crystal substrates were chosen in terms of small lattice mismatch between CCTO and the substrate. The X-ray diffraction patterns showed that the CCTO film layers grow with different orientations depending upon the substrate used. We show that the preferred orientation of CCTO thin films can be manipulated to a high degree by growing it on specific crystal planes of the substrates without the use of buffer layers. Colossal dielectric constants are observed in our films which appear to correlate with the film crystallinity and preferred orientation. © 2016 Elsevier B.V. |
| format |
JOUR |
| author |
Pongpaiboonkul, S. Kasa, Y. Phokharatkul, D. Putasaeng, B. Hodak, J.H. Wisitsoraat, A. Hodak, S.K. |
| author_facet |
Pongpaiboonkul, S. Kasa, Y. Phokharatkul, D. Putasaeng, B. Hodak, J.H. Wisitsoraat, A. Hodak, S.K. |
| author_sort |
Pongpaiboonkul, S. |
| title |
Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| title_short |
Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| title_full |
Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| title_fullStr |
Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| title_full_unstemmed |
Controlling the preferential orientation in sol-gel prepared CaCu 3 Ti 4 O 12 thin films by LaAlO 3 and NdGaO 3 substrates |
| title_sort |
controlling the preferential orientation in sol-gel prepared cacu 3 ti 4 o 12 thin films by laalo 3 and ndgao 3 substrates |
| url |
http://hdl.handle.net/20.500.12110/paper_01694332_v385_n_p324_Pongpaiboonkul |
| work_keys_str_mv |
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