Utilizing two dimensional photonic crystals to study the relation between the air duty cycle and the light extraction efficiency of InGaN-based Light-Emitting Diodes
Journal
IEEE Conference on Nanotechnology
Pages
254-257
Date Issued
2013
Author(s)
CHIEH-HSIUNG KUAN
Lee, M.-L.
Hsieh, C.-J.
Su, V.
You, Y.-H.
Chen, P.-H.
Lin, H.-C.
Yang, H.-B.
CHIEH-HSIUNG KUAN
Abstract
In this paper, we have fabricated two-dimensional (2-D) photonic crystals (PhCs) in order to obtain the high light extraction efficiency of InGaN-based Light Emitting Diodes (LEDs) and then we used front-side illuminated micro-photoluminescence (μ-PL) spectroscopy to measure the PL intensity of our InGaN-based LEDs, we also used back-side illuminated inverted microscopy to double check our PL intensity results. From the PL intensity results, not only a nearly threefold increase in the PL intensity was observed, but also that the light output intensity has the air duty cycle dependent characteristic was demonstrated.
SDGs
Type
conference paper