Sang-Mook Kim et al 2009 J. Phys. D: Appl. Phys. 42 152004 doi:10.1088/0022-3727/42/15/152004
Electroluminescence comparison of photonic crystal light-emitting diodes with random and periodic hole structure
FREE ARTICLESang-Mook Kim1,2, Ki Seok Kim1, Gun Young Jung1,4, Jong Hyeob Baek2, Hyun Jeong3 and Mun Seok Jeong3
Show affiliationsFAST TRACK COMMUNICATION
We compare the characteristics of photonic crystal (PC) light-emitting diodes (LEDs) with the same hole pattern density of 12 ea µm−2. The PC LED with periodic hole structure demonstrated an increased output power, improved external efficiency at high current operation and uniform radiation owing to the periodic nanoscale features generating a photonic band gap (PBG), when compared with those of the random hole (RH) LED. The electroluminescence images obtained by confocal scanning electroluminescence microscopy (CSEM) show the difference of light emission propagation from the random and periodic structures.
- PACS
-
85.60.Jb Light-emitting devices
42.70.Qs Photonic bandgap materials
85.60.Bt Optoelectronic device characterization, design, and modeling
- Subjects
- Dates
-
Issue 15 (7 August 2009)
Received 9 March 2009, in final form 30 March 2009
Published 13 July 2009
-
Electroluminescence comparison of photonic crystal light-emitting diodes with random and periodic hole structure
Sang-Mook Kim et al 2009 J. Phys. D: Appl. Phys. 42 152004
-
Short time properties, dynamic fragility and pressure effects in deeply supercooled polymer melts
Erica J Saltzman and Kenneth S Schweizer 2007 J. Phys.: Condens. Matter 19 205123
-
Superluminal Radio-Jet X-Ray Sources: Binary Systems?
D Hannikainen and Ph Durouchoux 1998 Phys. Scr. 1998 82
-
The XAS model of dissolved Cu(II) and its significance to biological electron transfer
Patrick Frank et al 2009 J. Phys.: Conf. Ser. 190 012059
-
Fabrication and mechanical characterization of a force sensor based on an individual carbon nanotube
G Singh et al 2007 Nanotechnology 18 475501
-
Development and characterization of a new instrument for the traceable measurement of areal surface texture
Richard K Leach et al 2009 Meas. Sci. Technol. 20 125102
-
Vacancy trapping by solute atoms during quenching in Cu-based dilute alloys studied by positron annihilation spectroscopy
A Yabuuchi et al 2009 J. Phys.: Conf. Ser. 191 012019
-
Light depolarization by non-uniform polarization distribution over a beam cross section
C Vena et al 2009 J. Opt. A: Pure Appl. Opt. 11 125704
-
A derivation of an off-shell 2D,
supergravity chiral projection operator
S James Gates Jr and Akin Morrison 2009 J. Phys. A: Math. Theor. 42 442002
-
A possible mechanism of ultrafast amorphization in phase-change memory alloys: an ion slingshot from the crystalline to amorphous position
A V Kolobov et al 2007 J. Phys.: Condens. Matter 19 455209
Users also read
What's this?- 3D hybrid computations for streamer discharges and production of runaway electrons
- A cold atmospheric pressure plasma jet controlled with spatially separated dual-frequency excitations
- Reduction of CO2 solute by hydrogen microplasmas in an electrolyte