Utilizing Two-Dimensional Photonic Crystals in Different Arrangement to Investigate the Correlation Between the Air Duty Cycle and the Light Extraction Enhancement of InGaN-Based Light-Emitting Diodes

Ming-Lun Lee; Yao-Hong You; Ray-Ming Lin; Cheng-Ju Hsieh; Vin-Cent Su; Po-Hsun Chen; Chieh-Hsiung Kuan

doi:10.1109/JPHOT.2014.2323304

IEEE Photonics Journal (Jan 2014)

Utilizing Two-Dimensional Photonic Crystals in Different Arrangement to Investigate the Correlation Between the Air Duty Cycle and the Light Extraction Enhancement of InGaN-Based Light-Emitting Diodes

Ming-Lun Lee,
Yao-Hong You,
Ray-Ming Lin,
Cheng-Ju Hsieh,
Vin-Cent Su,
Po-Hsun Chen,
Chieh-Hsiung Kuan

Affiliations

Ming-Lun Lee: <formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula> Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Yao-Hong You: Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Ray-Ming Lin: <formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula> Graduate Institute of Electronic Engineering and Green Technology Research Center, Chang Gung University, Tao-Yuan, Taiwan
Cheng-Ju Hsieh: Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Vin-Cent Su: Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Po-Hsun Chen: Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Chieh-Hsiung Kuan: Graduate Institute of Electronics Engineering, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan

DOI: https://doi.org/10.1109/JPHOT.2014.2323304
Journal volume & issue: Vol. 6, no. 3
pp. 1 – 8

Abstract

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This paper demonstrates that the optimal light extraction enhancement of the 2-D photonic crystals (PhCs) light-emitting diodes (LEDs) among different air duty cycles (ADADCsCs) is independent of the geometry and the shape of the 2-D PhCs. Moreover, it also discusses that the side-directional emission property of the 2-D PhCs LEDs in hexagonal lattice arrangement (HLA) is better than that in square lattice arrangement (SLA). Finally, the light output power of the 2-D PhCs LEDs in SLA and in HLA with the ADC of 51% are significantly improved by 60.4% and 81.9%, respectively, as compared with the reference LED at an injection current of 350 mA.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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