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Monitoring the electrochemical reactions on a gold nanoelectrode array via fluorescence-enabled electrochemical
Xiuxiu Li1, Xiang Qin2, Yafeng Wu1
1Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China. wuyafeng@seu.edu.cn.
Abstract:
High-spatial resolution fluorescence imaging on a high-density gold nanoelectrode array was achieved by anchoring fluorescent molecules to limit diffusion. Meanwhile, an ionic liquid as the electrolyte with a refractive index matching with the optical system could effectively improve the sensitivity of fluorescence imaging. Moreover, spatially resolved imaging of the electrochemical reactions on a single nanoelectrode modified with a single Pt nanoparticle was achieved.
