ZnO nanorods/graphene/Ni/Au hybrid structures as transparent conductive layer in GaN LED for low work voltage and high light extraction

Xu, Ke; Xie, Yiyang; Ma, Huali; Du, Yunchen; Zeng, Fang; Ding, Pei; Gao, Zhiyuan; Xu, Chen; Sun, Jie

doi:10.1016/j.sse.2016.09.021

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…Because of great potential of graphene prepared by CVD, many researches have been done on the CVD for graphene preparation. Since graphene is prepared by CVD on single-crystal transition metals [8], the CVD method to prepare graphene has become a hot issue [9][10][11][12]. Li et al [13] by virtue of the CVD produced monolayer graphene, and explained the mechanism of graphene formed on Ni and Cu foil.…”

Section: Introductionmentioning

confidence: 99%

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Research on rapid growth of monolayer graphene by vertical cold-wall CVD method

Duan

et al. 2020

Journal of Experimental Nanoscience

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Chemical vapor deposition (CVD) is one of the most important methods for the preparation of graphene. Graphene is usually prepared using horizontal tube CVD (HT-CVD) method. However, the preparation of this method is too long, generally more than 2 h. In this article, a method called vertical cold-wall CVD (VCW-CVD) method was introduced for graphene preparation. Due to the vertical angle between direction of gas flow and sample surface, the reaction process of this method for graphene preparation is only 1 min. Accordingly, in this article, the modified parameter of graphene preparation by this method was discussed. Besides, the VCW-CVD graphene had an equal quality with the HT-CVD graphene, which was proved by measurement of conductivity, transmittance and heat stability.

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Section: Introductionmentioning

confidence: 99%

“…Vertical cold-wall CVD (VCW-CVD) [12,[5][6][7][8][9][10][11][12][13][14][15][16][17] is different from HT-CVD, whose heater is inside the chamber. The sample heating method is by both heat conduction and thermal radiation, which makes the heating area small.…”

Section: Introductionmentioning

confidence: 99%

Research on rapid growth of monolayer graphene by vertical cold-wall CVD method

Duan

et al. 2020

Journal of Experimental Nanoscience

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“…In addition, achieving the small dimensions of scattering objects through photolithography technologies is impossible because of the short wavelength of nitride-based LEDs. Some studies [16,17,18,19,20,21] have proposed the fabrication of textured GaN or a window layer to improve the LEE of InGaN/GaN LEDs through the changed trajectory of incident light beyond the escape cone. However, the textured InGaN/GaN LEDs demonstrate deteriorated electrical and temperature properties because of the inhomogeneous spatial field distribution under driving.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Light Extraction Efficiency for InGaN/GaN Light-Emitting Diodes Using Silver Nanoparticle Embedded ZnO Thin Films

et al. 2019

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In this study, we propose a liquid-phase-deposited silver nanoparticle embedded ZnO (LPD-Ag NP/ZnO) thin film at room temperature to improve the light extraction efficiency (LEE) for InGaN/GaN light-emitting diodes (LEDs). The treatment solution for the deposition of the LPD-Ag/NP ZnO thin film comprised a ZnO-powder-saturated HCl and a silver nitrate (AgNO3) aqueous solution. The enhanced LEE of an InGaN/GaN LED with the LPD-Ag NP/ZnO window layer can be attributed to the surface texture and localized surface plasmon (LSP) coupling effect. The surface texture of the LPD-Ag/NP ZnO window layer relies on the AgNO3 concentration, which decides the root-mean-square (RMS) roughness of the thin film. The LSP resonance or extinction wavelength also depends on the concentration of AgNO3, which determines the Ag NP size and content of Ag atoms in the LPD-Ag NP/ZnO thin film. The AgNO3 concentration for the optimal LEE of an InGaN/GaN LED with an LPD-Ag NP/ZnO window layer occurs at 0.05 M, which demonstrates an increased light output intensity that is approximately 1.52 times that of a conventional InGaN/GaN LED under a 20-mA driving current.

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Enhanced photocatalytic behavior of ZnO nanorods decorated with a Au, ZnWO4, and Au/ZnWO4 composite: Synthesis and characterization

Somdee

Wannapop

2022

Colloid and Interface Science Communications

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ZnO nanorods/graphene/Ni/Au hybrid structures as transparent conductive layer in GaN LED for low work voltage and high light extraction

Cited by 9 publications

References 16 publications

Research on rapid growth of monolayer graphene by vertical cold-wall CVD method

Research on rapid growth of monolayer graphene by vertical cold-wall CVD method

Enhancement of Light Extraction Efficiency for InGaN/GaN Light-Emitting Diodes Using Silver Nanoparticle Embedded ZnO Thin Films

Enhanced photocatalytic behavior of ZnO nanorods decorated with a Au, ZnWO4, and Au/ZnWO4 composite: Synthesis and characterization

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