Development of PZMN-PT films

The relaxor ferroelectric PZMN-PT (Pb(Zn,Mg)1/3Nb2/3O3-PbTiO3) system has been garnering interest in recent years as the addition of PMN to the PZN-PT system is able to generate a system that has high dielectrical and optical properties at the Morphotropic Phase Boundary (MPB). However, to suppress...

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Main Author: Teng, Chen Shun.
Other Authors: Ma Jan
Format: Final Year Project
Language:English
Published: 2009
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Online Access:http://hdl.handle.net/10356/15331
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-153312023-03-04T15:43:16Z Development of PZMN-PT films Teng, Chen Shun. Ma Jan School of Materials Science and Engineering DRNTU::Engineering The relaxor ferroelectric PZMN-PT (Pb(Zn,Mg)1/3Nb2/3O3-PbTiO3) system has been garnering interest in recent years as the addition of PMN to the PZN-PT system is able to generate a system that has high dielectrical and optical properties at the Morphotropic Phase Boundary (MPB). However, to suppress the pyrochlore formation and to obtain high perovskite content has proved to be very difficult. Up to now, only a handful of papers have discussed the effect of promoting the perovskite formation with the addition of chemical modifiers. Hence, this report will be focusing on the optimization of processing parameters in obtaining PZMN-PT films with high perovskite content. The processing parameters investigated includes, the optimal annealing time and annealing temperature. The novel method of using 18-Crown-6 (18C6) as a chemical modifier was also tested in this report. 18-Crown-6 being a crown ether, exhibits certain affinity to cations and thus, in theory is able to stabilize the Pb2+ ions and prevent them from reacting with other elements in the sol-gel precursor. Theroetically, this will be able to promote perovskite formation. How the amount of 18-Crown-6 addition affects the perovskite formation was investigated. The effect of 18-Crown-6 on the electrical and optical properties of the PZMN-PT system was also investigated in this report. The effect of different PT content on the PZMN-PT system was also investigated. Mainly, the morphology, electrical and optical properties were compared between the adding 23%PT which is the MPB system and adding 43%PT, both with the addition of 18-Crown-6. Future works can be carried out in investigating the detailed effect of 18-Crown-6 addition on the E-O properties of the PZMN-PT system. This will give a better idea on how the electrical and optical properties of the PZMN-PT system can be affected by the 18-Crown-6 modifier. Bachelor of Engineering (Materials Engineering) 2009-04-27T08:25:28Z 2009-04-27T08:25:28Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15331 en 61 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Teng, Chen Shun.
Development of PZMN-PT films
description The relaxor ferroelectric PZMN-PT (Pb(Zn,Mg)1/3Nb2/3O3-PbTiO3) system has been garnering interest in recent years as the addition of PMN to the PZN-PT system is able to generate a system that has high dielectrical and optical properties at the Morphotropic Phase Boundary (MPB). However, to suppress the pyrochlore formation and to obtain high perovskite content has proved to be very difficult. Up to now, only a handful of papers have discussed the effect of promoting the perovskite formation with the addition of chemical modifiers. Hence, this report will be focusing on the optimization of processing parameters in obtaining PZMN-PT films with high perovskite content. The processing parameters investigated includes, the optimal annealing time and annealing temperature. The novel method of using 18-Crown-6 (18C6) as a chemical modifier was also tested in this report. 18-Crown-6 being a crown ether, exhibits certain affinity to cations and thus, in theory is able to stabilize the Pb2+ ions and prevent them from reacting with other elements in the sol-gel precursor. Theroetically, this will be able to promote perovskite formation. How the amount of 18-Crown-6 addition affects the perovskite formation was investigated. The effect of 18-Crown-6 on the electrical and optical properties of the PZMN-PT system was also investigated in this report. The effect of different PT content on the PZMN-PT system was also investigated. Mainly, the morphology, electrical and optical properties were compared between the adding 23%PT which is the MPB system and adding 43%PT, both with the addition of 18-Crown-6. Future works can be carried out in investigating the detailed effect of 18-Crown-6 addition on the E-O properties of the PZMN-PT system. This will give a better idea on how the electrical and optical properties of the PZMN-PT system can be affected by the 18-Crown-6 modifier.
author2 Ma Jan
author_facet Ma Jan
Teng, Chen Shun.
format Final Year Project
author Teng, Chen Shun.
author_sort Teng, Chen Shun.
title Development of PZMN-PT films
title_short Development of PZMN-PT films
title_full Development of PZMN-PT films
title_fullStr Development of PZMN-PT films
title_full_unstemmed Development of PZMN-PT films
title_sort development of pzmn-pt films
publishDate 2009
url http://hdl.handle.net/10356/15331
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