標題: Self-assembled gold nanostructures in complex oxide thin films
作者: Wang, Hongliang
Yen, Min
Er, Xiaokuo
Liu, Pingping
Wan, Farong
Chu, Ying-Hao
Zhan, Qian
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Au-oxide nanocomposites;Self-assemble;Growth mechanism;Optical property
公開日期: 1-Jan-2020
摘要: Recently, noble metal-complex oxide nanocomposites with a high interface-to-volume ratio have attracted considerable interest for their potential applications in advanced devices. In this work, Nb:SrTiO3 epitaxial thin films embedded with different ratios of Au nanophase were fabricated using pulsed laser deposition. Detailed heterostructures at an atomic scale have been investigated based on advanced transmission electron microscopy. The results reveal that the pattern tunability of Au nanostructures can be realized by controlling the volume ratios between Au and Nb:SrTiO3, resulting in the manipulation of absorption characteristics in the visible light region. It is suggested that elastic energy and surface energy anisotropy are important factors to control the growth of the present Au/Nb:SrTiO3 heterostructures. This work offers a desirable platform to design nano composites with novel optical properties.
URI: http://dx.doi.org/10.1016/j.matchar.2019.110069
http://hdl.handle.net/11536/153921
ISSN: 1044-5803
DOI: 10.1016/j.matchar.2019.110069
期刊: MATERIALS CHARACTERIZATION
Volume: 159
起始頁: 0
結束頁: 0
Appears in Collections:Articles