Tunnel-junction light-emitting diodes

Yen Kuang Kuo, Jih Yuan Chang, Ya Hsuan Shih, Fang Ming Chen, Miao Chan Tsai

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)


The use of p-n tunnel junctions for applications in GaN-based electronic and optoelectronic devices has become increasingly attractive. The use of tunnel junctions has conceptually been desired for the reuse of carriers for coupled active regions, enabling high quantum efficiencies and improved vertical transport (Ozden et al., 2001). Concepts of the tunnel field-effect transistors, multiple active region light-emitting diodes (LEDs) and laser diodes, high-conductivity hole injection layers, and multijunction solar cells may be realized with the III-nitride material system providing that a sufficiently low-resistivity tunnel junction can be obtained. However, the feasibility of forming low-resistivity tunnel junctions in the wide-bandgap III-nitride devices has been a challenge due to the high hole and electron concentrations required for band alignment. Substantial effort is still required to resolve this critical issue.

Original languageEnglish
Title of host publicationHandbook of Optoelectronic Device Modeling and Simulation
Subtitle of host publicationFundamentals, Materials, Nanostructures, LEDs, and Amplifiers
PublisherCRC Press
Number of pages18
ISBN (Electronic)9781498749473
ISBN (Print)1498749461, 9781498749466
Publication statusPublished - 2017 Jan 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)
  • Materials Science(all)

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