Effect of Buffer Layer Thickness on the Growth Properties of Hydrothermally Grown ZnO Nanorods

Kim, Ah Ra; Lee, Juyoung; Jang, Bo Ra; Kim, Hong Seung; Cho, Young Ji; Park, Hyunkook; Jang, Nakwon; Kim, Jihun

doi:10.1166/jnn.2011.3395

Cited by 3 publications

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“…There are two main ways to prepare such a ZnO seed layer: sputtering and wet coating. The former requires expensive equipment and complex conditions OE12; 13 . The latter usually requires several cycles of wet coating and annealing which restricts the reliability and reproducibility of the fabrication process of ZnO nanowires OE14 .…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of ZnO nanowires on FTO glass for dye-sensitized solar cells

Han¹,

Li²,

Li³

et al. 2013

J. Semicond.

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Long and well-aligned ZnO nanowires were hydrothermally synthesized on FTO glass based on a ZnO seed layer which was prepared by spin-coating and annealing techniques. The effect of the growth solution refreshment on the morphology of ZnO nanowires was investigated and the possible mechanism was discussed. After refreshing the growth solution for 5 cycles, ZnO nanowires of 120 nm in diameter and 20 m in length were obtained. The prepared ZnO nanowires were used as photoelectrodes in dye-sensitized solar cells (DSSCs), showing excellent photovoltaic performance. With the increase of growth cycles of ZnO nanowires, the photocurrent of DSSCs increased obviously due to the increased dye loading on the surface of ZnO nanowires. The results indicated that the long and well-aligned ZnO nanowires are promising for DSSCs application.

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Section: Introductionmentioning

confidence: 99%

Facile synthesis of ZnO nanowires on FTO glass for dye-sensitized solar cells

Han¹,

Li²,

Li³

et al. 2013

J. Semicond.

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Effects of position, thickness, and annealing temperature of Ag buffer layer on the shape of ZnO nanocrystals grown by a simple hydrothermal process

Huang

Zhou

et al. 2013

J. Mater. Res.

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Photoelectrochemical Properties of Copper Oxide Photoelectrode with Various Copper Oxide Buffer Layers

Jeon¹,

Hong²,

Ryu³

et al. 2019

Korean J. Met. Mater.

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In this study, a CuO buffer layer was deposited on a fluorine-doped tin oxide (FTO) substrate using a spin coating method, and then a CuO photoelectrode was grown on the CuO buffer layer using a modifiedchemical bath deposition (M-CBD) method. We investigated the morphological, structural, optical, electrical and photoelectrochemical properties of the CuO photoelectrode grown according to the number of deposited CuO buffer layers, using field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), UVvisible spectroscopy (UV-vis), electrochemical impedance spectroscopy (EIS) and three-electrode potentiostat, respectively. From the study, we found that the root mean square (RMS), surface area, optical energy bandgap, flat-band potential, acceptor density, and photoelectrochemical properties of the CuO photoelectrode were greatly influenced by changes in the CuO buffer layer, depending on the number of deposited buffer layers. It was also found that growth in the (11) and (111) direction planes of the CuO photoelectrode affected the sheetshape structural growth of the CuO photoelectrode. In addition, it was observed that the CuO photoelectrode using the CuO buffer layer grew uniformly and nano-sized. As a result, the highest photocurrent density value of-2.22 mA/cm 2 (at-0.55 V vs. SCE) was obtained from the CuO photoelectrode fabricated with 3 cycles of CuO buffer layer deposition. It was the thickest, had the lowest optical energy band gap, the highest RMS value, surface area, preferential growth on the (11) plane, flat-band potential and acceptor density.

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Effect of Buffer Layer Thickness on the Growth Properties of Hydrothermally Grown ZnO Nanorods

Cited by 3 publications

References 0 publications

Facile synthesis of ZnO nanowires on FTO glass for dye-sensitized solar cells

Facile synthesis of ZnO nanowires on FTO glass for dye-sensitized solar cells

Effects of position, thickness, and annealing temperature of Ag buffer layer on the shape of ZnO nanocrystals grown by a simple hydrothermal process

Photoelectrochemical Properties of Copper Oxide Photoelectrode with Various Copper Oxide Buffer Layers

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