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Electrochemical deposition of SERS active nanostructured silver films

机译:SERS活性纳米银膜的电化学沉积

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An electrochemical multiple scan cyclic voltammetry (CV) method was used to prepare surface- enhanced Raman scattering (SERS) active silver island films to investigate the effect of potential scanrate and number of CV scans on the SERS performance. The SERS enhancement capability is particlesize and distribution as well surface profile amplitude dependent with an optimal potential scan rate of100 mV/s and 30 CV scans at the experimental conditions used. Scanning electron microscopy andoptical profilometry investigation reveal that the highest SERS effect was associated with thehomogenously distributed uniform size aggregates merged to interconnecting network. Theenhancement factor for Rhodamine 6G (R6G) adsorbed on the SERS-active Ag film was estimated to12 6 be 3.710 and a detection limit of about 510 mol/l was reached.
机译:使用电化学多次扫描循环伏安法(CV)制备表面增强拉曼散射(SERS)活性银岛薄膜,以研究潜在扫描速率和CV扫描次数对SERS性能的影响。 SERS增强能力取决于颗粒大小和分布以及表面轮廓振幅,在所使用的实验条件下,最佳电位扫描速率为100 mV / s,且扫描速度为30 CV。扫描电子显微镜和光学轮廓仪研究表明,最高的SERS效应与均匀分布的均匀大小的聚集体合并到互连网络有关。据估计,SERS活性银膜上吸附的若丹明6G(R6G)的增强因子为12 6为3.710,检测极限达到约510 mol / l。

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