Electrochemical impedance spectroscopy, as a method for characterizing the impedance properties of materials, can be used to evaluate relative changes in particle size in nano-colloidal dispersions. By applying ultrasonic agitation for varying duration, we induce changes in particle size distribution, then measure the EIS response, including impedance magnitude and phase. The results are compared ...Show More
A novel technique of synthesising polymer-Er3+-doped ceria nanocomposite thin films with strong Er3+ ions photoluminescence (PL) emission and long lifetime at 1534 nm for applications in optical sensing and waveguide are presented.Show More
Metal oxides in different length scales have been used as sensing materials for designing gas sensors for several years. A number of sensor architectures have been explored for developing selective gas sensors that are capable of discriminating between reducing and oxidising gases as well as amongst the gases that are either reducing or oxidising. There is an immense drive towards developing highl...Show More
