Light extraction from optically pumped light-emitting diode by thin-slab photonic crystals

Authors
Boroditsky, M Krauss, TF Coccioli, R Vrijen, R Bhat, R Yablonovitch, E
Citation
M. Boroditsky et al., Light extraction from optically pumped light-emitting diode by thin-slab photonic crystals, APPL PHYS L, 75(8), 1999, pp. 1036-1038
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
75
Issue
8
Year of publication
1999
Pages
1036 - 1038
Database
ISI
SICI code
0003-6951(19990823)75:8<1036:LEFOPL>2.0.ZU;2-M
Abstract
We describe a promising thin-slab light-emitting diode (LED) design, which uses a highly efficient coherent external scattering of trapped light by a two-dimensional (2D) photonic crystal. The light generation region was an u npatterned heterostructure surrounded by the light extraction region, a thi n film patterned as a 2D photonic crystal. A six-fold photoluminescence enh ancement was observed compared to an unpatterned thin film LED. That corres ponded to 70% external quantum efficiency. (C) 1999 American Institute of P hysics. [S0003-6951(99)01634-4].