Molecules and Electronic Materials

Detection of interaction between redox centers of surface confined molecules by means of Cyclic Voltammetry and Differential Staircase Voltcoulommetry

“…This interest is based on the fact that the attachment of these molecules gives rise to a wide range of applications of the resulting structures, including molecular electronics, electrocatalysis, nanodevices and bioelectronics [6,7,[16][17][18][19]. In addition, immobilisation of these molecules has provided a convenient way for fundamental studies concerning electron transfer between a redox center placed at a well-defined distance from the electrode surface in the absence of other effects derived from the presence of mass transport [20,21].…”

An AFM, XPS and electrochemical study of molecular electroactive monolayers formed by wet chemistry functionalization of H-terminated Si(100) with vinylferrocene

“…Several publications have addressed, in the last decade, the issue of organic derivatization of silicon surfaces, mainly in view of their potential applications in different fields, as molecular electronics, dielectric films, sensoring [1,2]. Basic issues of momentum importance are still open, notably the role played by the presence of a covalent bond, established between organic moiety and silicon, in determining the hybrid chemical behaviour, its electronic addressability and robustness [3,4].…”

Photoelectrochemical etching of silicon derivatized with an electroactive thiophene-terminated alkyl monolayer: toward a redox center-induced etching activation and anisotropy

“…This catalytic phenomenon parallels that reported on mediation of oxidation reactions by electroactive ferrocene units immobilized on n-type silicon [26,27]. For 2, it is believed that the attached, positively charged conducting material (oligomer or polymer) injects holes, which are efficiently tunneled through the alkyl chain to silicon [28,29]. A plausible electrocatalytic mechanism is displayed in Scheme 2.…”