UPSI Digital Repository (UDRep)
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Total records found : 1 |
Simplified search suggestions : Lim Darwina Choo Kheng |
1 | 2020 thesis | Sensitivity optimisation of hybrid calixarene-reduced graphene oxide langmuir-blodgett thin films via langmuir, optical, structural and elektrical characterisations Lim, Darwina Choo Kheng The study aimed to investigate the characteristics of calixarene, reduced graphene oxide
(rGO) and their composite in order to optimise the sensitivity of the composite. The calixarenes
(calix[4]arene, calix[6]arene and calix[8]arene) and rGO were prepared in solution
to form a Langmuir film by using Langmuir-Blodgett (LB) trough. The values of 30 mN/m and
15 mN/m were selected for calixarenes and rGO respectively for the thin film deposition. The
surface potential (?V) and effective dipole moment (µ?) of calixarenes were also
investigated. The optical properties of calixarene in solution and thin film were
studied using UV-Visible (UV-Vis) spectroscopy and compared to ensure the stability of
the thin film. Meanwhile, the rGO thin film was characterised with UV-Vis spectroscopy for t..... 658 hits |