<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

學術出版;;Publications

Permanent URI for this communityhdl:11536/1

收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

Browse

🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Hsieh, MHSubject: search.filters.subject.AlGaInP

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item type:Item,
    Increasing the extraction efficiency of AlGaInP LEDs via n-side surface roughening
    (2005-11-01)
    Lee, YJ
    ;
    Kuo, HC
    ;
    Wang, SC
    ;
    Hsu, TC
    ;
    Hsieh, MH
    An n-side-up AlGaInP-based light-emitting diode (LED) with a triangle-like surface morphology was fabricated using the adhesive layer bonding technique, followed by wet etching to roughen the surface. The light output power of the roughened-surface LED was 1.6 times higher than that of a flat-surface LED at an injection current of 20 mA, i.e., a significant improvement attributed to the ability of the roughened surface to not only reduce the internal reflection between the rear mirror system and the semiconductor-air interface, but also to effectively scatter the light outside the LED device.
  • Thumbnail Image
    Item type:Item,
    AlGaInP light-emitting diodes with stripe patterned omni-directional reflector
    (2006-02-01)
    Lee, YJ
    ;
    Lu, TC
    ;
    Kuo, HC
    ;
    Wang, SC
    ;
    Liou, MJ
    An n-side-up AlGaInP-based light-emitting diode (LED) with a stripe-patterned omni-directional reflector (ODR) was fabricated by adopting the adhesive-layer bonding scheme. Comparing to the conventional ODR LED, the stripe-patterned ODR LED significantly enhanced the output power with an only slight higher forward voltage. This improvement was analyzed by the scanning near-field optical microscope (SNOM) and could be attributable to the geometrical shape of stripe patterns that redirects the guided light towards to the escaping cone of the LED surface. The optimized dimension of stripe patterns was also calculated by simply modeling a LED dice with a stripe-patterned ODR structure, according to optical ray-tracing method.