Study of a GaN-Based LED with an Al/AZO Composite Transparent Conductive Layer

Chi Hsiang Hsu, Sheng Yi Chen, Wei Cheng Chen, Ching Hong Chang, Chun Yen Chen, Jung Hui Tsai, Wen Chau Liu

研究成果: Article

4 引文 (Scopus)

摘要

A new and simple Al/aluminum-doped zinc oxide (AZO) composite structure is proposed to act as a transparent conductive layer (TCL) for GaN-based LEDs. The Al/AZO composite layers effectively improve the current spreading performance, compared with an AZO TCL. Experimentally, the specific contact resistance of the studied Al/AZO LED is reduced by about 27.6%, compared with an AZO LED. In addition, under an operating current of 20 mA, the forward voltage and light output power (LOP) of the studied Al/AZO LED are decreased by 0.15 V and increased by 19.5%, respectively. Uniform and enhanced intensities are also found in light emission mapping images of the studied Al/AZO LED. Consequently, based on benefits including simple structure and improved electrical and optical properties, the studied Al/AZO TCL is suitable for GaN-based LED applications.

原文English
文章編號7982960
頁(從 - 到)3678-3682
頁數5
期刊IEEE Transactions on Electron Devices
64
發行號9
DOIs
出版狀態Published - 2017 九月

指紋

Zinc Oxide
Zinc oxide
Aluminum
Light emitting diodes
Composite materials
Light emission
Contact resistance
Composite structures
Electric properties
Optical properties
Electric potential

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

引用此文

Hsu, C. H., Chen, S. Y., Chen, W. C., Chang, C. H., Chen, C. Y., Tsai, J. H., & Liu, W. C. (2017). Study of a GaN-Based LED with an Al/AZO Composite Transparent Conductive Layer. IEEE Transactions on Electron Devices, 64(9), 3678-3682. [7982960]. https://doi.org/10.1109/TED.2017.2724599
Hsu, Chi Hsiang ; Chen, Sheng Yi ; Chen, Wei Cheng ; Chang, Ching Hong ; Chen, Chun Yen ; Tsai, Jung Hui ; Liu, Wen Chau. / Study of a GaN-Based LED with an Al/AZO Composite Transparent Conductive Layer. 於: IEEE Transactions on Electron Devices. 2017 ; 卷 64, 編號 9. 頁 3678-3682.
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abstract = "A new and simple Al/aluminum-doped zinc oxide (AZO) composite structure is proposed to act as a transparent conductive layer (TCL) for GaN-based LEDs. The Al/AZO composite layers effectively improve the current spreading performance, compared with an AZO TCL. Experimentally, the specific contact resistance of the studied Al/AZO LED is reduced by about 27.6{\%}, compared with an AZO LED. In addition, under an operating current of 20 mA, the forward voltage and light output power (LOP) of the studied Al/AZO LED are decreased by 0.15 V and increased by 19.5{\%}, respectively. Uniform and enhanced intensities are also found in light emission mapping images of the studied Al/AZO LED. Consequently, based on benefits including simple structure and improved electrical and optical properties, the studied Al/AZO TCL is suitable for GaN-based LED applications.",
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Hsu, CH, Chen, SY, Chen, WC, Chang, CH, Chen, CY, Tsai, JH & Liu, WC 2017, 'Study of a GaN-Based LED with an Al/AZO Composite Transparent Conductive Layer', IEEE Transactions on Electron Devices, 卷 64, 編號 9, 7982960, 頁 3678-3682. https://doi.org/10.1109/TED.2017.2724599

Study of a GaN-Based LED with an Al/AZO Composite Transparent Conductive Layer. / Hsu, Chi Hsiang; Chen, Sheng Yi; Chen, Wei Cheng; Chang, Ching Hong; Chen, Chun Yen; Tsai, Jung Hui; Liu, Wen Chau.

於: IEEE Transactions on Electron Devices, 卷 64, 編號 9, 7982960, 09.2017, p. 3678-3682.

研究成果: Article

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AU - Tsai, Jung Hui

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