Light output improvement of GaN-based light-emitting diodes using hydrothermally grown ZnO nanotapers

Yung Chun Tu; Shui Jinn Wang; Jia Ching Lin; Fu Shou Tsai; Tseng Hsing Lin; Kai Ming Uang; Tron Min Chen

doi:10.7567/JJAP.52.06GG13

Light output improvement of GaN-based light-emitting diodes using hydrothermally grown ZnO nanotapers

Yung Chun Tu, Shui Jinn Wang, Jia Ching Lin, Fu Shou Tsai, Tseng Hsing Lin, Kai Ming Uang, Tron Min Chen

Institute of Microelectronics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A new two-step hydrothermal growth (HTG) process with a shorter processing time and better growth control is proposed for the synthesis of ZnO nanotapers (NTs). The application of HTG ZnO NTs as surface roughening nanostructures to improve the light output power (Lop) of GaN-based LEDs is demonstrated. Compared with that of ZnO nanowires, the use of ZnO NTs leads to an improvement in Lop by 24.5% at 350 mA, which could be attributed to the fact that tapered ends of ZnO NTs offer more constructive photon scattering to maximize light extraction.

Original language	English
Article number	06GG13
Journal	Japanese journal of applied physics
Volume	52
Issue number	6 PART 2
DOIs	https://doi.org/10.7567/JJAP.52.06GG13
Publication status	Published - 2013 Jun

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

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10.7567/JJAP.52.06GG13

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abstract = "A new two-step hydrothermal growth (HTG) process with a shorter processing time and better growth control is proposed for the synthesis of ZnO nanotapers (NTs). The application of HTG ZnO NTs as surface roughening nanostructures to improve the light output power (Lop) of GaN-based LEDs is demonstrated. Compared with that of ZnO nanowires, the use of ZnO NTs leads to an improvement in Lop by 24.5% at 350 mA, which could be attributed to the fact that tapered ends of ZnO NTs offer more constructive photon scattering to maximize light extraction.",

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AU - Wang, Shui Jinn

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AU - Tsai, Fu Shou

AU - Lin, Tseng Hsing

AU - Uang, Kai Ming

AU - Chen, Tron Min

PY - 2013/6

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AB - A new two-step hydrothermal growth (HTG) process with a shorter processing time and better growth control is proposed for the synthesis of ZnO nanotapers (NTs). The application of HTG ZnO NTs as surface roughening nanostructures to improve the light output power (Lop) of GaN-based LEDs is demonstrated. Compared with that of ZnO nanowires, the use of ZnO NTs leads to an improvement in Lop by 24.5% at 350 mA, which could be attributed to the fact that tapered ends of ZnO NTs offer more constructive photon scattering to maximize light extraction.

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Light output improvement of GaN-based light-emitting diodes using hydrothermally grown ZnO nanotapers

Abstract

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