| Автор | V A Howarth |
| Автор | M C Petty |
| Дата выпуска | 1996-01-14 |
| dc.description | In this paper we present a complex admittance analysis of three electrode systems when exposed to aqueous KCl solutions: uncoated gold, gold/alkyl mercaptan and gold/alkyl mercaptan/22-tricosenoic acid Langmuir - Blodgett film. For each arrangement, the experimental data were fitted to the theoretical responses of equivalent electrical networks of capacitors and resistors. For the first two electrodes, a simple model consisting of an electrolyte resistance in series with the Gouy - Chapman diffuse layer capacitance described the experimental data well. For the third system, incorporating the high-impedance bilayer of 22-tricosenoic acid, a more complex equivalent circuit was needed. The physical interpretation of its components is discussed. In all cases universal capacitors with a power-law frequency response had to be used to model the real systems accurately. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Admittance spectroscopy of Langmuir - Blodgett films on metal electrodes in aqueous solutions |
| Тип | paper |
| DOI | 10.1088/0022-3727/29/1/027 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 29 |
| Первая страница | 179 |
| Последняя страница | 184 |
| Аффилиация | V A Howarth; School of Engineering and Centre for Molecular Electronics, University of Durham, South Road, Durham DH1 3LE, UK |
| Аффилиация | M C Petty; School of Engineering and Centre for Molecular Electronics, University of Durham, South Road, Durham DH1 3LE, UK |
| Выпуск | 1 |
