期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 114, 期 30, 页码 12896-12899出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp102720r
关键词
-
资金
- DOE [FG02-98ER14861]
- Nanoscale Science and Engineering Initiative of the NSF [CHE-0641523]
- New York State Office of Science, Technology, and Academic Research (NYSTAR)
- Columbia MRSEC [DMR-02113574]
The photoelectrochemistry of citrate-stabilized gold nanoparticles on an ITO electrode is studied at low light intensity. Weak cathodic photovoltage develops under visible gold plasmon irradiation. Photovoltage results from adsorbed citrate oxidation by hot holes in the irradiated Au. Under identical conditions, Ag nanocrystals give a stronger photovoltage than Au nanocrystals. The photocurrent is linear in light intensity, and a complete citrate monolayer forms on the Au particles above 10(-6) M aqueous concentration. At strongly oxidizing potentials, a photocurrent peak occurs which may be related to electron photoinjection from Au into the ITO substrate.
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