PhD student wins European Presentation Award
Sumin Choi receiving his award for Best Student Presentation at the European Materials Research Society Conference.
Sumin Choi from the School of Mathematical and Physical Sciences has won a Best Student Presentation at the European Materials Research Society (E-MRS) Conference held this September.
The award recognised his Presentation at the symposium in Warsaw, entitled ‘Single photon emission from ZnO and its electroluminescence - promising approach for fabrication of quantum light emitting diodes’.
The research mainly focused on the recent outcomes in studying single photon sources in ZnO and practical nanophotonics devices including electrically driven light emission from defects in n-ZnO/p-Si heterojunctions.
This research is significant as it can be used to improve efficiency in various light-related applications such as LEDs and lasers, however Mr Choi must first work out how to fabricate devices for these practical uses.
“The security systems are not perfect, but using single-photon sources we can create the perfect networking security system, because these sources cannot be divided into two photons.”
“It hasn’t been studied yet, so my research is quite important in terms of quantum light emitting diodes… One of our ideas is that we have to create proper optical resonators, which can increase light emission and efficiency,” said Mr Choi.
“ZnO can be easily fabricated in a short time and do not require high temperatures so if I can create a light emission from a ZnO microdisc it will increase the current efficiency a significant amount.”
The work presented forms part of Mr Choi’s PhD thesis, which he is undertaking with the supervision of Dr Cuong Ton-That, Prof Matthew Phillips and A/Prof Igor Aharonovich.
The E-MRS is one of the largest conferences in material science in the world and is held annually in Europe.
Learn more about UTS Science’s research into single photon emitters.