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解决方案
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voltage-dependent STM-TERS
发布:俄罗斯NT-MDT公司上海代表处(恩特-梦迪特服务和物流有限公司)浏览次数:316We measured tip-enhanced Raman scattering (TERS) and photoluminescence (PL) spectra of benzenethiol- modified gold nanoplates fixed on graphite, by using a gold tip for scanning tunne领 microscopy (STM) measurements. With increasing bias voltage between the tip and the nanoplates, the Raman intensities of benzenethiol gradually decreased, while the PL intensities decreased first and then increased. This implied that relatively low bias voltages are suitable for STMTERS measurements. Both PL mapping and STM images of the nanoplates were simultaneously obtained. The PL mapping images showed that field enhancement by gap-mode plasmons between the tip and the nanoplates depended on their configuration.
2014-09-12相关仪器 -
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