ZnO nanorod/p-GaN heterostructured light-emitting diodes passivated using photoelectrochemical method

Jheng Tai Yan, Ching Ting Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To fabricate the p-GaN/i-ZnO nanorod/n-ZnO nanorod (p-i-n) nanorod-heterosturctured light-emitting diodes (LEDs), i-ZnO and n-ZnO:In nanorod arrays were grown sequentially on a p-GaN layer. In order to passivate the non-radiatvie recombination centers at the nanorod sidewall, a thin Zn(OH)2 layer was directly grown on the ZnO nanorod using a photoelectrochemical method. Electroluminescence emission at 386 nm was observed from the resultant LEDs. Furthermore, the light output intensity of the passivated nanorod-heterosturctured LEDs was much larger than that of the unpassivated nanorod-heterosturctured LEDs. The result demonstrated that Zn(OH)2 directly grown on the ZnO nanorod sidewall could passivate the non-radiative recombination centers effectively.

Original languageEnglish
Title of host publicationWide-Bandgap Semiconductor Materials and Devices 11 -and- State-of-the-Art Program on Compound Semiconductors 52, SOTAPOCS 52
Pages71-77
Number of pages7
Volume28
Edition4
DOIs
Publication statusPublished - 2010
EventWide-Bandgap Semiconductor Materials and Devices 11 -and- State-of-the-Art Program on Compound Semiconductors 52, SOTAPOCS 52 - 217th ECS Meeting - Vancouver, BC, Canada
Duration: 2010 Apr 252010 Apr 30

Other

OtherWide-Bandgap Semiconductor Materials and Devices 11 -and- State-of-the-Art Program on Compound Semiconductors 52, SOTAPOCS 52 - 217th ECS Meeting
CountryCanada
CityVancouver, BC
Period10-04-2510-04-30

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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