Appling plasmonics based electrochemical microscopy to thin-layer electrochemistry
Plasmonics based electrochemical microscopy (PECM) has been introduced to image local electrochemical reactions optically.The algorithm used to convert the plasmonic signal to current,however,is not applicable to thinlayer electrochemistry,which is important formicrofluidic detection and biosensing applications.Here we introduce a PECM algorithm for both semi-infinite and thin-layer electrochemical geometries.The new algorithm expresses plasmonic signal as local concentration of redox species on the electrode surface,which,together with the diffusion and Nernst equations,determines the current.We validate the algorithm experimentally by fabricating a thin-layer electrochemical cell,consisting of two-parallel electrodes separated with various distances.
Plasmonic based electrochemical microscopy (PECM) Surface plasmon Electrochemical imaging Thin layer electrochemistry
Yen-Chun Chao Xiaonan Shan Nongjian Tao
Center for Bioelectronics and Biosensors,Biodesign Institute,Arizona State University,Tempe,AZ 85287 Center for Bioelectronics and Biosensors,Biodesign Institute,Arizona State University,Tempe,AZ 85287
国际会议
南京
英文
161-165
2016-12-23（万方平台首次上网日期，不代表论文的发表时间）