Output power enhancement of light-emitting diodes via two-dimensional hole arrays generated by a monolayer of microspheres

Chia Hung Hou, Shao Ze Tseng, Chia Hua Chan, Tsing Jen Chen, Hung Ta Chien, Fu Li Hsiao, Hua Kung Chiu, Chien Chieh Lee, Yen Ling Tsai, Chii Chang Chen

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The output power enhancement of the GaN-based light-emitting diodes (LEDs) featuring two-dimensional (2D) hole arrays is demonstrated. The 2D air hole arrays were first generated in the photoresist by utilizing the focusing nature of microspheres, and then transferred onto the GaN surface through dry etching. The maximum output power of the surface-textured LEDs was enhanced by 45% compared with the LEDs without surface texturing. The finite-difference time-domain calculation was performed and revealed that the light extraction efficiency of the textured LEDs increased with increasing etching depth.

Original languageEnglish
Article number133105
JournalApplied Physics Letters
Volume95
Issue number13
DOIs
Publication statusPublished - 2009 Oct 12

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light emitting diodes
augmentation
output
etching
photoresists
air

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Hou, Chia Hung ; Tseng, Shao Ze ; Chan, Chia Hua ; Chen, Tsing Jen ; Chien, Hung Ta ; Hsiao, Fu Li ; Chiu, Hua Kung ; Lee, Chien Chieh ; Tsai, Yen Ling ; Chen, Chii Chang. / Output power enhancement of light-emitting diodes via two-dimensional hole arrays generated by a monolayer of microspheres. In: Applied Physics Letters. 2009 ; Vol. 95, No. 13.
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abstract = "The output power enhancement of the GaN-based light-emitting diodes (LEDs) featuring two-dimensional (2D) hole arrays is demonstrated. The 2D air hole arrays were first generated in the photoresist by utilizing the focusing nature of microspheres, and then transferred onto the GaN surface through dry etching. The maximum output power of the surface-textured LEDs was enhanced by 45{\%} compared with the LEDs without surface texturing. The finite-difference time-domain calculation was performed and revealed that the light extraction efficiency of the textured LEDs increased with increasing etching depth.",
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Hou, CH, Tseng, SZ, Chan, CH, Chen, TJ, Chien, HT, Hsiao, FL, Chiu, HK, Lee, CC, Tsai, YL & Chen, CC 2009, 'Output power enhancement of light-emitting diodes via two-dimensional hole arrays generated by a monolayer of microspheres', Applied Physics Letters, vol. 95, no. 13, 133105. https://doi.org/10.1063/1.3238360

Output power enhancement of light-emitting diodes via two-dimensional hole arrays generated by a monolayer of microspheres. / Hou, Chia Hung; Tseng, Shao Ze; Chan, Chia Hua; Chen, Tsing Jen; Chien, Hung Ta; Hsiao, Fu Li; Chiu, Hua Kung; Lee, Chien Chieh; Tsai, Yen Ling; Chen, Chii Chang.

In: Applied Physics Letters, Vol. 95, No. 13, 133105, 12.10.2009.

Research output: Contribution to journalArticle

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AU - Hsiao, Fu Li

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AU - Lee, Chien Chieh

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