Synthesis of thermally stable Ag@TiO2 core-shell nanoprisms and plasmon-enhanced optical properties for a P3HT thin film

	Synthesis of thermally stable Ag@TiO2 core-shell nanoprisms and plasmon-enhanced optical properties for a P3HT thin film
	Du P.; Cao Y.; Li D.; Liu Z.; Kong X.; Sun Z.
	2013
发表期刊	RSC Advances
ISSN	ISBN/20462069
卷号	3 期号:17
摘要	We develop a facile method to synthesize Ag@TiO2 core-shell nanoprisms (NPs) with a tunable shell thickness through a simple sol-gel route. The thickness of the TiO2 shell can be precisely tuned from 1 to 15 nm via changing the reaction time and amount of TiO2 sol-gel precursor. The localized surface plasmon resonance (LSPR) absorption band shows a red-shift of over a hundred nanometers with the increasing TiO2 shell thickness. The thermal stability of the Ag NPs is significantly improved due to the introduction of the TiO2 shell. We investigate the enhanced absorption and fluorescence of poly(3-hexylthiophene) (P3HT) via coating bare Ag and Ag@TiO2 core-shell NPs with P3HT. A similar absorption enhancement indicates that the LSPR absorption enhancement is not affected by the ultra-thin TiO2 shell. Weak and significant fluorescence enhancements are observed for the P3HT hybrid film with bare Ag NPs and Ag@TiO2 core-shell NPs, respectively. The bare Ag NPs work as both an enhancement element and a recombination center, which quench the P3HT fluorescence to some degree. The recombination of the charge carriers is effectively depressed by introducing the ultra-thin TiO2 shell, which blocks the hole transfer to the Ag NPs. 2013 The Royal Society of Chemistry.
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000316965800039
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/40887
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Du P.,Cao Y.,Li D.,et al. Synthesis of thermally stable Ag@TiO2 core-shell nanoprisms and plasmon-enhanced optical properties for a P3HT thin film[J]. RSC Advances,2013,3(17).
APA	Du P.,Cao Y.,Li D.,Liu Z.,Kong X.,&Sun Z..(2013).Synthesis of thermally stable Ag@TiO2 core-shell nanoprisms and plasmon-enhanced optical properties for a P3HT thin film.RSC Advances,3(17).
MLA	Du P.,et al."Synthesis of thermally stable Ag@TiO2 core-shell nanoprisms and plasmon-enhanced optical properties for a P3HT thin film".RSC Advances 3.17(2013).

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