Effects of size on the electrical and optical properties of InGaN-based red light-emitting diodes

Zhe Zhuang; Daisuke Iida; Kazuhiro Ohkawa

doi:10.1117/12.2577244

6 March 2021 Effects of size on the electrical and optical properties of InGaN-based red light-emitting diodes

Zhe Zhuang, Daisuke Iida, Kazuhiro Ohkawa

Proceedings Volume 11686, Gallium Nitride Materials and Devices XVI; 116862H (2021) https://doi.org/10.1117/12.2577244
Event: SPIE OPTO, 2021, Online Only

Conference Poster

Abstract

This work found larger red chips exhibited lower forward voltages due to their lower series resistance originated from the device area. Moreover, a larger chip resulted in a longer emission wavelength, narrower full-width at half maximum (FWHM), and higher EQE at high currents. These characteristics are beneficial for InGaN-based red LEDs. On the other hand, smaller chips had merits of a high characteristic temperature of 399K. This characteristic temperature is almost similar level with the world record in AlGaInP-based red LEDs, suggesting that InGaN-based red LEDs with small chip sizes are good candidates for temperature tolerant lighting applications.

Conference Presentation

Citation Download Citation

Zhe Zhuang, Daisuke Iida, and Kazuhiro Ohkawa "Effects of size on the electrical and optical properties of InGaN-based red light-emitting diodes", Proc. SPIE 11686, Gallium Nitride Materials and Devices XVI, 116862H (6 March 2021); https://doi.org/10.1117/12.2577244

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