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Journal of Display Technology

Journal of Display Technology


  • Vol. 10, Iss. 2 — Feb. 1, 2014
  • pp: 162–166

GaN-Based Light-Emitting Diodes With Staircase Electron Injector Structure

Shoou-Jinn Chang and Yu-Yao Lin

Journal of Display Technology, Vol. 10, Issue 2, pp. 162-166 (2014)

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The authors experimentally studied GaN-based light-emitting diodes (LEDs) with both an staircase electron injector (SEI) structure and a conventional electron blocking layer (EBL). With the EBL, it was found that we could enhance LED output power, reduce forward voltage, and mitigate efficiency droop by inserting the SEI structure. These improvements could all be attributed to the effective cooling of the injected hot electrons. However, it was also found that some of the injected electrons could still leak into the p-GaN layer in the LED with SEI structure but without the EBL.

© 2013 IEEE

Shoou-Jinn Chang and Yu-Yao Lin, "GaN-Based Light-Emitting Diodes With Staircase Electron Injector Structure," J. Display Technol. 10, 162-166 (2014)

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