Effects of surface roughness on properties of passivation of self-assembled organic monolayers

Química Nova

Ferreira, Antonio A. P.¹  Universidade Federal da Integração Latino-Americana, Foz do Iguaçu, Brasil¹  Universidade Estadual Paulista, Araraquara, Brasil¹  Góes, Márcio S.¹  Benites, Tiago A.¹  Ribeiro, Willian C.¹  Bueno, Paulo R.¹ 

关键词: self-;    assembled monolayers (SAMs);    roughness;    cyclic voltammetry.;   

DOI  :  10.5935/0100-4042.20140241

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Precise surface area is needed for accurate characterization of self-assembled monolayers (SAMs) on metallic surfaces. The aim of this manuscript was to emphasize that miscalculation of surface area is the major source of errors in SAM electrochemical characterization. Limitations are discussed and recommendations given for beginners in  analyses of SAM functionalized electrodes. The electrochemical measurements and examples were based on bare gold electrode immobilized with dodecanethiol. The degree of compression of the monolayer properties of formation and reproducibility of the electrochemical response depends on roughness factor, with values closer to the unit being better.

【 授权许可】

Unknown