Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns

DH Kim, CO Cho, YG Roh, H Jeon, YS Park… - Applied Physics …, 2005 - pubs.aip.org
We observed a significant enhancement in light output from GaN-based light-emitting diodes
(LEDs) in which two-dimensional photonic crystal (PC) patterns were integrated. Two …

Strontium titanate surfaces

DS Deak - Materials Science and Technology, 2007 - journals.sagepub.com
Strontium titanate (SrTiO3) is a perovskite material with a variety of useful yet complex
surface structures. Recent studies of SrTiO3 have revealed how surface treatment can give …

In situ synthesis of gold nanoparticles (AuNPs) in butterfly wings for surface enhanced Raman spectroscopy (SERS)

Z Mu, X Zhao, Z Xie, Y Zhao, Q Zhong, L Bo… - Journal of Materials …, 2013 - pubs.rsc.org
Recently, surface enhanced Raman spectroscopy (SERS) has been widely studied for
chemical and biological sensing. SERS substrates combined with photonic architectures …

Design, fabrication and optical characterization of photonic crystal assisted thin film monocrystalline-silicon solar cells

X Meng, V Depauw, G Gomard, O El Daif… - Optics express, 2012 - opg.optica.org
In this paper, we present the integration of an absorbing photonic crystal within a
monocrystalline silicon thin film photovoltaic stack fabricated without epitaxy. Finite …

Two-dimensional photonic crystal for absorption enhancement in hydrogenated amorphous silicon thin film solar cells

G Gomard, E Drouard, X Letartre, X Meng… - Journal of Applied …, 2010 - pubs.aip.org
We propose a photovoltaic solar cell design based on a 100 nm thick absorbing layer made
of hydrogenated amorphous silicon and patterned as a two-dimensional planar photonic …

Absorbing one-dimensional planar photonic crystal for amorphous silicon solar cell

O El Daif, E Drouard, G Gomard, A Kaminski, A Fave… - Optics …, 2010 - opg.optica.org
We report on the absorption of a 100nm thick hydrogenated amorphous silicon layer
patterned as a planar photonic crystal (PPC), using laser holography and reactive ion …

Absorbing photonic crystals for silicon thin-film solar cells: Design, fabrication and experimental investigation

X Meng, G Gomard, O El Daif, E Drouard… - Solar Energy Materials …, 2011 - Elsevier
In this paper, we present the integration of an absorbing photonic crystal within a thin-film
photovoltaic solar cell. Optical simulations performed on a complete solar cell revealed that …

Photonic crystal band edge laser array with a holographically generated square-lattice pattern

CO Cho, J Jeong, J Lee, H Jeon, I Kim, DH Jang… - Applied Physics …, 2005 - pubs.aip.org
We fabricated a photonic band edge laser array based on a two-dimensional square-lattice
photonic crystal (PC) slab waveguide using a laser holography (LH) method, instead of the …

AlGaN membrane grating reflector

J Kim, DU Kim, J Lee, H Jeon, Y Park… - Applied Physics …, 2009 - pubs.aip.org
We report on AlGaN grating reflectors for short-wavelength applications, an alternative to
conventional distributed Bragg reflectors that are difficult to make in a GaN-based system …

GaN light-emitting diode with monolithically integrated photonic crystals and angled sidewall deflectors for efficient surface emission

J Lee, S Ahn, S Kim, DU Kim, H Jeon, SJ Lee… - Applied Physics …, 2009 - pubs.aip.org
In order to obtain efficient surface emission, we propose and demonstrate a GaN light-
emitting diode (LED) structure. A two-dimensional photonic crystal (PC) pattern is integrated …