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dc.contributor.authorChiu, Chung-Huaen_US
dc.contributor.authorLiang, Wen-Ien_US
dc.contributor.authorHuang, Chun-Weien_US
dc.contributor.authorChen, Jul-Yuanen_US
dc.contributor.authorLiu, Yun-Yaen_US
dc.contributor.authorLi, Jiang-Yuen_US
dc.contributor.authorHsin, Cheng-Lunen_US
dc.contributor.authorChu, Ying-Haoen_US
dc.contributor.authorWu, Wen-Weien_US
dc.date.accessioned2016-03-28T00:04:12Z-
dc.date.available2016-03-28T00:04:12Z-
dc.date.issued2015-10-01en_US
dc.identifier.issn2211-2855en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.nanoen.2015.08.001en_US
dc.identifier.urihttp://hdl.handle.net/11536/129418-
dc.description.abstractGreat attention is paid to that stimulus response of materials, which is a prerequisite for energy harvesting applications. Driven by advances in nanotechnology, the atomic motions, involved in phase transitions and associated with stimulus responses, require detailed investigation on the nanoscale. Recently, strain engineering of BiFeO3 (BFO) has become the subject of broad research interest due to its promising potential in energy conversion applications, such as piezoelectric, pyroelectric and shape memory effect (SME) devices. In this study, an excellent pyroelectric response is associated with reversible phase transitions in mixed-phase BFO films using thermal stimuli. Using an in situ high-resolution transmission electron microscope (HRTEM), we observed that phase transition between rhombohedral-like (R-like) and tetragonal-like (1-like) BFO involved the migration of the phase boundary, which is a prerequisite for the growth of the T-like phase and requires an intermediate phase. Moreover, the origin of the phase transition is attributed to competition between thermodynamic stability and substrate-induced strain, as suggested by phase-field simulations. The results provide a fundamental understanding of the atomic processes that underlie the stimulus response of the strained BFO films and demonstrate the potential of this extraordinary material for novel energy harvesting applications. (C) 2015 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectBiFeO3en_US
dc.subjectMPBen_US
dc.subjectin-situ HRTEMen_US
dc.subjectReversible phase transitionen_US
dc.subjectPyroelectric responseen_US
dc.titleAtomic Visualization of the Phase Transition in Highly Strained BiFeO3 Thin Films with Excellent Pyroelectric Responseen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.nanoen.2015.08.001en_US
dc.identifier.journalNANO ENERGYen_US
dc.citation.volume17en_US
dc.citation.spage72en_US
dc.citation.epage81en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000366149000009en_US
dc.citation.woscount1en_US
Appears in Collections:Articles