期刊
NANO LETTERS
卷 11, 期 10, 页码 4251-4255出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl2022459
关键词
Surface plasmon; hot electron; Schottky diode; photon; Fowler's law; internal photoemission
类别
资金
- World Class University (WCU) through the National Research Foundation of Korea [R31-2008-000-10055-0]
- Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences, and Engineering of the U.S. Department of Energy [DE-AC02-05CH11231]
- [KRF-2011-0015387]
A continuous flow of hot electrons that are not at thermal equilibrium with the surrounding metal atoms is generated by the absorption of photons. Here we show that hot electron flow generated on a gold thin film by photon absorption (or internal photoemission) is amplified by localized surface plasmon resonance. This was achieved by direct measurement of photocurrent on a chemically modified gold thin film of metal-semiconductor (TiO2) Schottky diodes. The short-circuit photocurrent obtained with low-energy photons is consistent with Fowler's law, confirming the presence of hot electron flows. The morphology of the metal thin film was modified to a connected gold island structure after heating such that it measurements on the connected island structures revealed the presence of a indicate an intrinsic correlation between the hot electron flow generated by resonance. exhibits surface plasmon. Photocurrent and optical localized surface plasmon at 550 +/- 20 nm. The results internal photoemission and localized surface plasmon resonance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据