Reduction in Shockley–Read–Hall generation-recombination in AlInSb light-emitting-diodes using spatial patterning of the depletion region

Nash, G. R.; Ashley, T.
May 2009
Applied Physics Letters;5/25/2009, Vol. 94 Issue 21, p213510
Academic Journal
A technique for the reduction in Shockley–Read–Hall recombination in semiconductor diodes, in which areas of the depletion region are removed, is described and preliminary results obtained using AlInSb light-emitting-diodes (LEDs) are presented. Both the electrical and optical characteristics of the devices were significantly improved by removing parts of the depletion region using dry etching, with an average increase in the zero bias differential resistance and LED emission at low currents by a factor of 2.


Related Articles

  • Silicon dioxide buffer at anode/polymer interface for enhanced brightness and efficiency of polymer light-emitting diode. Huang, C. J. // Journal of Materials Science Letters;Oct2003, Vol. 22 Issue 20, p1423 

    This article focuses on enhancing the efficiency of light-emitting diodes. The limited performance of existing diodes results from the fact that a device formed on a bare indium-tin-oxide (ITO) surface usually shows insufficient hole injection and poor operational stability. The insertion of the...

  • Hole-transporting-layer-free high-efficiency fluorescent blue organic light-emitting diodes. Jou, Jwo-Huei; Chiang, Po-Hsuan; Lin, Yu-Pu; Chang, Chin-Yeh; Lai, Chun-Liang // Applied Physics Letters;7/23/2007, Vol. 91 Issue 4, p043504 

    High-efficiency fluorescent blue organic light-emitting diodes were fabricated using hole-injection and carrier-confining effective device architecture without a hole-transporting layer. The diodes consist of 1250 Ã… indium tin oxide/300 Ã… blue-emissive layer/400 Ã…...

  • A theoretical and experimental investigation of light extraction from polymer light-emitting diodes. Ziebarth, Jonathan M.; McGehee, Michael D. // Journal of Applied Physics;3/15/2005, Vol. 97 Issue 6, p064502 

    Using numerical modeling techniques we predict the emission into air, substrate, polymer/indium tin oxide (ITO), and surface-plasmon modes of a polymer light-emitting diode. The results give good insight into the possible efficiency increases that can be expected for various light extraction...

  • Improved performance of blue phosphorescent organic light-emitting diodes with a mixed host system. Jonghee Lee; Jeong-Ik Lee; Jun Yeob Lee; Hye Yong Chu // Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p253304 

    We have investigated a relationship between device performances and host properties in the emissive layer (EML) of iridium(III) bis(4′,6′-difluorophenylpyridinato)tetrakis(1-pyrazolyl)borate doped blue phosphorescent organic light-emitting diodes (PHOLEDs). We found that the...

  • High extraction efficiency light-emitting diodes based on embedded air-gap photonic-crystals. Matioli, Elison; Rangel, Elizabeth; Iza, Micheal; Fleury, Blaise; Pfaff, Nathan; Speck, James; Hu, Evelyn; Weisbuch, Claude // Applied Physics Letters;1/18/2010, Vol. 96 Issue 3, p031108 

    This letter reports on high extraction efficiency light-emitting diodes (LEDs) based on embedded two-dimensional air-gap photonic crystals (PhCs). High refractive index contrast provided by the air gaps along with high interaction of the embedded PhCs with the guided light resulted in an...

  • National Lighting.  // Display & Design Ideas;May2005, Vol. 17 Issue 5, p66 

    This article reports on National Lighting's light-emitting diodes (LEDs) lights. This display case features strip LEDs that fade through various shades of red, green and blue. National Lighting's LED lights are ideal for any application where energy use is a concern.

  • Effect of indirect minima carrier population on the output characteristics of AlGalnP... Patel, D.; Pikal, J.M.; Menoni, C.S.; Thomas, K.J.; Kish, F.A.; Hueschen, M.R. // Applied Physics Letters;11/15/1999, Vol. 75 Issue 20, p3201 

    Studies the effect of indirect minima carrier population on the output characteristics of AlGalnP semiconductor light-emitting diodes. Influence of carrier transfer to the indirect X level on the efficiency of AlGalnP light-emitting diodes; Measured electroluminescence spectra of AlGalnP...

  • Neon retail display.  // Forecourt Trader;Mar2012, p18 

    The article offers brief information on the Screen Wizzard backlit light emitting diode (LED) writing screen.

  • Temperature and injection current dependence of electroluminescence intensity in green and blue InGaN single-quantum-well light-emitting diodes. Hori, A.; Yasunaga, D.; Satake, A.; Fujiwara, K. // Journal of Applied Physics;3/15/2003, Vol. 93 Issue 6, p3152 

    Temperature and injection current dependence of electroluminescence (EL) spectral intensity of the superbright green and blue InGaN single-quantum-well (SQW) light-emitting diodes has been studied over a wide temperature range (T=15-300 K) and as a function of injection current level (0.1-10...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics