Shabir, Abdul and Tan, Cher Ming, “Effect of moisture content on the degradation of silicone used as an LED optical housing material- An ab initio study,” 8th IEEE & 9th The International Conference on Science, Education, and Viable Engineering, Taitung, Taiwan. October 28th to 31st,2021.
Loganathan MK, Cher Ming Tan, I-Yun Lisa Hsieh, Sahnin Sultana, Kumaraswamidhas L. A. and Rai R.N,” Parametric performance analysis of battery operated electric vehicle,” 2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET), 21-23 Jan. 2021.
Quantum Dots (QDs) are being investigated in a hybrid white light LED structure which inculcates phosphor in the package with a blue LED chip as the light source recently. In this work, Zn doped CdS QD with ZnS shell together with green light emission phosphor is used. Upon prolonged operation, degradation of the LEDs due …
Degradation dynamics of quantum dots in white LED applications Read More »
There are many advantages of LEDs in energy and environmental conservation, but their short life in many outdoor applications prompt a necessity to have a detailed understanding of their degradations to prolong their lifetime, which can also conserve LED material and even expand their applications. Using ab initio density functional theory formulation, we identify the detail paths …
Advances in semiconductor technology have enhanced the functionality of sensor arrays with reduced feature sizes. Owing to the spread of the Internet of Things, sensors can now be found in many applications operating in various environments. Proton and neutron radiation are always present around us but have not been detrimental to electronics at sea level. …
Electronic Reliability Analysis under Radiation Environment Read More »
A transimpedance amplifier (TIA) is an essential electronic circuit in prompt gamma detection. To improve the performance and reliability of the electronics, we designed a TIA using GaN high electron mobility transistor (HEMT) as it is more radiation-hardened when compared to its silicon counterpart and it has lower noise. Our circuit is designed using GaN …
Application of Gallium Nitride Technology in Particle Therapy Imaging Read More »
High energy and high flux protons are used in proton therapy and the impact of proton radiation is a major reliability concern for electronics and solar cells in low earth orbit as well as in the trapped belts. Carbon nanotubes (CNTs), due to their unique characteristics, have been considered for the construction of proton and …
Effect of 150 MeV protons on carbon nanotubes for fabrication of a radiation detector Read More »
Prompt gamma imaging is one of the emerging techniques used in proton therapy for in-vivo range verification. Prompt gamma signals are generated during therapy due to the nuclear interaction between beam particles and nuclei of the tissue that is detected and processed in order to obtain the position and energy of the event so that …
GaN-Based Readout Circuit System for Reliable Prompt Gamma Imaging in Proton Therapy Read More »
Neutron radiation on advanced integrated circuits (ICs) is becoming important for their reliable operation. However, a neutron test on ICs is expensive and time-consuming. In this work, we employ Monte Carlo simulation to examine if a proton test can replace or even accelerate the neutron test, and we found that 200 MeV protons are the …
Single event upset, or Single Event Effect (SEE) is increasingly important as semiconductor devices are entering into nano-meter scale. The Linear Energy Transfer (LET) concept is commonly used to estimate the rate of SEE. The SEE, however, should be related to energy deposition of each stochastic event, but not LET which is a non-stochastic quantity. …
Lineal Energy of Proton in Silicon by a Microdosimetry Simulation Read More »