Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag)
This work proposes a modeling of self-assembled monolayers (SAMs) to assess the quality of SAM layers in terms of their leaky behavior. In the modeling, electrochemical impedance spectroscopy (EIS) and a conceptual and simplified resistance-resistance-capacitance (RRC) electrical model from an elect...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-01-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379717304096 |
| _version_ | 1828878615296606208 |
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| author | M. Jalal Uddin M. Khalid Hossain Mohammad I. Hossain Wayesh Qarony S. Tayyaba M.N.H. Mia M.F. Pervez S. Hossen |
| author_facet | M. Jalal Uddin M. Khalid Hossain Mohammad I. Hossain Wayesh Qarony S. Tayyaba M.N.H. Mia M.F. Pervez S. Hossen |
| author_sort | M. Jalal Uddin |
| collection | DOAJ |
| description | This work proposes a modeling of self-assembled monolayers (SAMs) to assess the quality of SAM layers in terms of their leaky behavior. In the modeling, electrochemical impedance spectroscopy (EIS) and a conceptual and simplified resistance-resistance-capacitance (RRC) electrical model from an electrochemical setup were demonstrated. Based on the model, Matlab-based simulation was carried out to find out the suggestive low frequency measurement for analyzing the defective monolayers. Finally, the developed electrical model facilitated the interpretation of the EIS spectra measured in the range of 10 Hz to 100 kHz and provided the capacitance, resistance and thickness of the monolayer. Thus the proposed model could be considered as a powerful tool to characterize the defective SAMs, which was very specific to determine the resistive behavior of the self-assembled monolayers prepared for shorter adsorption time. Keywords: Self-assembled monolayers (SAMs), Octadecanethiol (ODT), Hexadecanethiol (HDT, Impedance, Capacitance of the SAM (CSAM), Resistance of the SAM (RSAM) |
| first_indexed | 2024-12-13T09:09:29Z |
| format | Article |
| id | doaj.art-b14b772f0d1d46b18889de68e67b63e2 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-13T09:09:29Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-b14b772f0d1d46b18889de68e67b63e22022-12-21T23:52:58ZengElsevierResults in Physics2211-37972017-01-01722892295Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag)M. Jalal Uddin0M. Khalid Hossain1Mohammad I. Hossain2Wayesh Qarony3S. Tayyaba4M.N.H. Mia5M.F. Pervez6S. Hossen7Dept. of Applied Physics, Electronics and Communication Engineering, Islamic University, Kushtia 7003, Bangladesh; Corresponding author.Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka 1349, BangladeshDept. of Electrical and Electronics Engineering, American International University Bangladesh, Dhaka 1213, BangladeshDept. of Electrical and Electronics Engineering, American International University Bangladesh, Dhaka 1213, BangladeshDept. of Computer Engineering, The University of Lahore, Lahore 54000, PakistanInstitute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka 1349, BangladeshInstitute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka 1349, BangladeshDept. of Physics, Khulna Govt. Mahila College, National University, Gazipur 1704, BangladeshThis work proposes a modeling of self-assembled monolayers (SAMs) to assess the quality of SAM layers in terms of their leaky behavior. In the modeling, electrochemical impedance spectroscopy (EIS) and a conceptual and simplified resistance-resistance-capacitance (RRC) electrical model from an electrochemical setup were demonstrated. Based on the model, Matlab-based simulation was carried out to find out the suggestive low frequency measurement for analyzing the defective monolayers. Finally, the developed electrical model facilitated the interpretation of the EIS spectra measured in the range of 10 Hz to 100 kHz and provided the capacitance, resistance and thickness of the monolayer. Thus the proposed model could be considered as a powerful tool to characterize the defective SAMs, which was very specific to determine the resistive behavior of the self-assembled monolayers prepared for shorter adsorption time. Keywords: Self-assembled monolayers (SAMs), Octadecanethiol (ODT), Hexadecanethiol (HDT, Impedance, Capacitance of the SAM (CSAM), Resistance of the SAM (RSAM)http://www.sciencedirect.com/science/article/pii/S2211379717304096 |
| spellingShingle | M. Jalal Uddin M. Khalid Hossain Mohammad I. Hossain Wayesh Qarony S. Tayyaba M.N.H. Mia M.F. Pervez S. Hossen Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) Results in Physics |
| title | Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) |
| title_full | Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) |
| title_fullStr | Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) |
| title_full_unstemmed | Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) |
| title_short | Modeling of self-assembled monolayers (SAMs) of Octadecanethiol and Hexadecanethiol on gold (Au) and silver (Ag) |
| title_sort | modeling of self assembled monolayers sams of octadecanethiol and hexadecanethiol on gold au and silver ag |
| url | http://www.sciencedirect.com/science/article/pii/S2211379717304096 |
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