2022 JRS Sustainability Webinar Series (6)

Development of Energy Efficient and Eco-Friendly Semiconductor Materials for Solid State Lighting

Date:  2 August 2022 (Tuesday)
Time: 14:00 - 15:00 (GMT+8 Taiwan) 
Language: English
Way of Participation:  Cisco Webex Meetings

Registration:  HERE
Other JRS Webinars:  HERE

u Speakers u

Dr. Wan Maryam Wan Ahmad Kamil 
Ts. Dr., School of Physics, Universiti Sains Malaysia 

Mr. Sheng-Chan Wu
Ph.D candidate, Department of Photonics, National Cheng Kung University

u Chair u

Prof. Hsu-Cheng Hsu
Professor, Department of Photonics, National Cheng Kung University

 

u About the Webinar u

We utilized a modified Lorentz oscillator model to analyze the measured Whispering-Gallery modes in ZnO-based microcavities.[1] We successfully extracted the polarization-dependent exciton resonance energies and the damping effect due to the scattering between LO-phonons and excitons at room temperature. Furthermore, the Rabi splitting energy and zero-detuning point can be identified accurately. The energy-momentum dispersion relation measured by angle-resolved micro-photoluminescence agrees well with the theoretical dispersion of exciton-polaritons, confirming the feasibility of this modified model and the reliability of extracted parameters. Finally, the phenomenon of the exciton-polariton condensation was realized at room temperature.

 

 u Webinar Recordingu

 

Enquiries
SATU Presidents’ Forum International Secretariat
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https://satu.ncku.edu.tw/