Project supported by the Natural Science Foundation of Beijing(No.4092007);the National High Technology Research and Development Program of China(Nos.2008AA03Z402,2009AA03A1A3)
The path of photons in the thin film (TF) light emitting diode (LED) was analyzed. The reflectivity of reflector in AlGaInP TF LED with and without the AlGaInP layer was contrasted. The absorption of the AlGaInP l...
Project supported by the Natural Science Foundation of Beijing,China(No.4092007);the National High Technology Research and Development Program of China(Nos.2008AA03Z402,2009AA03A1A3)
The reflectivity versus incident angle of a GaP/Au reflector, a GaP/SiO2/Au triple ODR (omni-directional reflector) and a GaP/ITO/Au triple ODR was calculated. Compared to A1GaInP LEDs with a GaAs absorbing substrat...
Project supported by the Natural Science Foundation of Beijing,China(No.4092007);the National High Technology Research and Development Program of China(No.2008AA03Z402);the Doctoral Program Foundation of Beijing,China(No.X0002013200801);the Eighth BJUT Technology Fund for Postgraduate Students,China
By using the wafer bonding technique and wet etching process,a wafer bonded thin film AlGaInP LED with wet etched n-AlGaInP surfaces was fabricated.The morphology of the etched surface exhibits a pyramid-like feature....
supported by the Natural Science Foundation of Beijing,China (Grant No.4092007);the National High Technology Research and Development Program of China (Grant No.2008AA03Z402);the Doctoral Program Foundation of Beijing,China(Grant No.X0002013200801);the Seventh BJUT Technology Fund for postgraduate students,China
In this paper AlGaInP light emitting diodes with different types of electrodes: Au/Zn/Au-ITO Au/Ti-ITO Au/Ge/Ni-ITO and Au-ITO are fabricated. The photoelectricity properties of those LEDs are studied. The results sh...