Scanning Optical Microscopy with an Electrogenerated Chemiluminescent Light Source at a Nanometer Tip
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- 作者：Yanbing Zu ; Zhifeng Ding ; Junfeng Zhou ; Youngmi Lee ; and Allen J. Bard
- 刊名：Analytical Chemistry
- 出版年：2001
- 出版时间：May 15, 2001
- 年：2001
- 卷：73
- 期：10
- 页码：2153 - 2156
- 全文大小：84K
- 年卷期：v.73,no.10(May 15, 2001)
- ISSN：1520-6882
文摘
Electrogenerated chemiluminescence at electrodes witheffective diameters down to 155 nm was used as a stablelight source for near-field scanning optical microscopyimaging of an interdigitated array and a submicrometersize test substrate. Light was generated in a thin (~500
m) layer of an aqueous solution of 15 mM Ru(bpy)32+and 100 mM tri-n-propylamine in a pH 7.5 buffer. Theresolution obtained was compared to that found with amicrometer size electrode. The shear force from the tipattached to a quartz tuning fork was used to monitor andcontrol the tip-to-substrate separation within the near fieldregime.
m) layer of an aqueous solution of 15 mM Ru(bpy)32+and 100 mM tri-n-propylamine in a pH 7.5 buffer. Theresolution obtained was compared to that found with amicrometer size electrode. The shear force from the tipattached to a quartz tuning fork was used to monitor andcontrol the tip-to-substrate separation within the near fieldregime.