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  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CE_11_3

Improvement of external quantum efficiency of blue and green InGaN LEDs using corrugated interface substrates

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Abstract

In recent years, an extensive investigation has been undertaken by many research groups in order to improve the external quantum efficiency (EQE) of InGaN-based blue and green light emitting diodes (LEDs), and several approaches have been proposed and demonstrated. Since its first demonstration in 2001 [1], the use of the corrugated interface substrate (CIS) technology appears to be very promising [2,3] due to the minimization of total internal reflection at the Sapphire/GaN interface.

© 2015 IEEE

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