Enhanced Light Extraction From Triangular GaN-Based Light-Emitting Diodes

  title={Enhanced Light Extraction From Triangular GaN-Based Light-Emitting Diodes},
  author={Ja-Yeon Kim and Min-Ki Kwon and Jae-Pil Kim and Seong-Ju Park},
  journal={IEEE Photonics Technology Letters},
This study investigated the characteristics of a triangular light-emitting diode (LED) and compared it to a standard quadrangular LED. The total radiant flux from the packaged triangular LED increased by 48% and 24% at input currents of 20 and 100 mA, respectively, compared to that of a quadrangular LED which was grown on patterned sapphire substrate. In light far-field beam distribution, the light extraction in the horizontal direction of the LED was much higher than that of the quadrangular… CONTINUE READING

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