Title :
Efficiency analysis of nano light emitting diodes
Author :
Witzigmann, Bernd
Author_Institution :
Comput. Electron. & Photonics Group, Univ. of Kassel, Kassel, Germany
Abstract :
Semiconductor light emitting diodes (LEDs) are light sources with the highest broadband electro-optical efficiency of any solid state device. They are an ideal choice for energy efficient lighting applications. In this paper, the light extraction efficiency of nano-LEDs is studied based on electromagnetic modeling. As main result, it is shown that the optical extraction efficiency analysis requires detailed knowledge of the electronic properties of the LED, such as internal quantum efficiency and local absorptivity. These properties are studied for a III-nitride based nanowire array LED.
Keywords :
energy conservation; light emitting diodes; LED; broadband electro-optical efficiency; efficiency analysis; electromagnetic modeling; energy efficient lighting applications; extraction efficiency; internal quantum efficiency; local absorptivity; nanolight emitting diodes; optical extraction efficiency analysis; Absorption; Cavity resonators; Light emitting diodes; Mirrors; Photonics; Recycling; Stimulated emission;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4799-7325-5
DOI :
10.1109/ICEAA.2014.6903897
