[演講] 2016/03/25 (Fri) Jr-Hau He教授演講公告

2016/03/25 (Thu) Jr-Hau He教授演講公告

講者：Prof. Jr-Hau He

演講時間：2016/3/25（五）15: 30~17:00

演講地點：化工館工223會議室

主持人： 廖英志教授

Photon managements by employing nanostructures for optoelectronic devices

Jr-Hau He^*

Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science & Technology (KAUST)

^{*jrhau.he@kaust.edu.sa}

Abstract

    It is of current interest to develop the photon management with nanostructures since the ability tosuppress the reflection and light trapping over a broad range of wavelengths and incident angles plays an important role in the performance of optoelectronic devices, such as photodetectors, light-emitting diodes, optical components, or photovoltaic systems. Superior light-trapping characteristics of nanowires, including polarization-insensitivity, omnidirectionality, and broadband working ranges are demonstrated in this study. 
These advantages are mainly attributed to the subwavelength dimensions of the nanowires, which makes the nanostructures behave like an effective homogeneous medium with continuous gradient of refraction index, significantly reducing the reflection through destructive interferences. The relation between the geometrical configurations of nanostructures and the light-trapping characteristics is discussed. We also demonstrated their applications in solar cells and photodetectors. This research paves the way to optimize the nanostructured optoelectronic devices with efficient light management by controlling structure profile of nanostructures.

** [招生資訊] 歡迎對海外求學有興趣的大學生來聆聽，抓住夢想的機會!!!**

Visiting Student Research Internship Program (VSRP) of KAUST

KAUST VSRP visiting students will receive the following:

• Academic credit
• Monthly living allowance between $800 and $1200 (based upon field of research)
• Round-trip airfare to/from city of departure-Jeddah (KAUST)
• Health insurance
• Private bedroom & bath in a shared residential suite
• Visa fees (Students must have valid passport)
• Access to community recreational resources
• Social and cultural activities

https://vsrp.kaust.edu.sa/Pages/Home.aspx

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