Mercaptopropyltriethoxysilane (MPTES) Concentration Effect on Selectivity and Electrical Response of Nanostructure

International Conference on Materials Engineering and Science

Mosbah, Ammar B.^1,4 ; Adam, Tijjani^1 ; Mohammed, Mohammed^2 ; Dahham, Omar S^1 ; Hashim, U.^3 ; Noriman, Nik Z.^1

Faculty of Engineering Technology, Kampus Uniciti Alam Sg. Chuchuh, Universiti Malaysia Perlis (UniMAP), Padang Besar

02100, Malaysia^1

Center of Excellence Geopolymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis, P.O. Box 77, Kangar, Perlis

01007, Malaysia^2

Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis

01000, Malaysia^3

School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Perlis-Arau

02600, Malaysia^4

关键词: Active area;    Concentration effects;    Electrical behaviors;    Electrical conductivity;    Electrical response;    Impedance analyser;    Silicon-based;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012184/pdf
DOI  :  10.1088/1757-899X/454/1/012184

来源: IOP

【 摘 要 】

The surface modification by on Mercaptopropyltriethoxysilane (MPTES) done to enhance electrical behavior of nano-IDE -based sensor, silicon based active area was coated with MPTES. The electrical properties of modified nano-IDE were tested using impedance analyser by observing the changes in impedance with the frequencies There was increase as the concentration of the MPTES increase from 1 to 5%. The electrical conductivity increases as mobility increase with the surface attenuation by the MPTES. This increase in concertation observed increase of the electrical conductivity with carrier mobility increment, this indicate decrease of the Si-arsenic bond length, which caused the bandgap to be shortened, likewise, The device behaviour to surface modification was capacitive reactive in natured.