Optical absorption and photoluminescence of Ag interlayer modulated ZnO film in view of their application in Si solar cells

Wang, Guojing; Li, Zhengcao; Lv, Shasha; Li, Mingyang; Shi, Cheng; Liao, Jiecui; Chen, Chienhua

doi:10.1016/j.ceramint.2015.11.014

Cited by 21 publications

(10 citation statements)

References 49 publications

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“…After modifying Ag NPs, all peaks slightly shifted to lower angles, meaning Ag substituted Zn atom 43 . The peak intensity and width of ZnO-MNWAs in XRD pattern significantly prove that it was a polycrystalline nanostructure 42 , which in accord with The ring electron diffraction pattern in Fig. 3(a) .…”

Section: Resultssupporting

confidence: 82%

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Honeycomb-like ZnO Mesoporous Nanowall Arrays Modified with Ag Nanoparticles for Highly Efficient Photocatalytic Activity

Feng

Wang

Liao

et al. 2017

Sci Rep

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A new structure of honeycomb-like ZnO mesoporous nanowall arrays (MNWAs) with highly efficient photocatalytic activity was designed and successfully synthesized on Al foil by hydrothermal method. The nanowalls of ZnO-MNWAs have mesopores, which possess a large surface area. The visible light absorption of ZnO-MNWAs was efficiently stronger than ZnO nanowire, resulting in that the photocatalytic activity of ZnO-MNWAs, whose bandgap energy was 3.12 eV, was 5.97 times than that of ZnO nanowires in the degradation of methyl orange. Besides, Al foil acted as a good electron conductor which was beneficial to the separation of photo-induced electron-hole pairs. After modifying ZnO-MNWAs with a proper amount of Ag nanoparticles (NPs), photocatalytic activity could be further enhanced. The photocatalytic activity of ZnO-MNWAs with the optimal amount of Ag NPs was 9.08 times than that of ZnO nanowires and 1.52 times than that of pure ZnO-MNWAs.

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Section: Resultssupporting

confidence: 82%

“…According to the first-principles calculations, substitutional-Ag to surface-Zn atom is the most energetically favorable 41 . Therefore, the ionic radius of Ag + (1.15 Å) is larger than that of Zn 2+ (0.74 Å) which makes lattice distortion 32 , 42 . The ring electron diffraction pattern in inserts of Fig.…”

Section: Resultsmentioning

confidence: 99%

Honeycomb-like ZnO Mesoporous Nanowall Arrays Modified with Ag Nanoparticles for Highly Efficient Photocatalytic Activity

Feng

Wang

Liao

et al. 2017

Sci Rep

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“…DEZ and H 2 O were used as the precursors for Zn and O, respectively. ZnO was doped with B to improve the electrical transport properties of ZnO thin ﬁlms [ 9 , 18 ]. B 2 H 6 was used as a doping gas.…”

Section: Methodsmentioning

confidence: 99%

“…The thicker ZnO thin films show a larger crystalline grain, a smaller lattice strain, a higher Zn/O ratio, and better crystal quality. Furthermore, doping impurities, such as B, Al, and Ga, can improve the electrical transport properties of ZnO [ 18 ]. There are two benefits to using a B-doped ZnO (ZnO@B) film as the TCO layer.…”

Section: Introductionmentioning

confidence: 99%

Dependence of lattice strain relaxation, absorbance, and sheet resistance on thickness in textured ZnO@B transparent conductive oxide for thin-film solar cell applications

Kou

Huang

Chen

et al. 2016

Beilstein J. Nanotechnol.

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SummaryThe interplay of surface texture, strain relaxation, absorbance, grain size, and sheet resistance in textured, boron-doped ZnO (ZnO@B), transparent conductive oxide (TCO) materials of different thicknesses used for thin film, solar cell applications is investigated. The residual strain induced by the lattice mismatch and the difference in the thermal expansion coefficient for thicker ZnO@B is relaxed, leading to an increased surface texture, stronger absorbance, larger grain size, and lower sheet resistance. These experimental results reveal the optical and material characteristics of the TCO layer, which could be useful for enhancing the performance of solar cells through an optimized TCO layer.

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“…Moreover, the carriers of ZnO are easy to recombine, making it hard to maintain good photocatalytic performance . Many literatures have adopted different methods to improve the performance of zinc oxide, including ion doping, thermal annealing treatment, and surface modification …”

Section: Introductionmentioning

confidence: 99%

Effect of nitrogen ion irradiation treatment to the enhancement of ZnO photocatalytic performance

Li²,

Qiu

et al. 2020

Surface & Interface Analysis

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To overcome the drawbacks of fast charge recombination and the limited visible‐light absorption of semiconductor photocatalysts, N ion irradiation is used to enhance photocatalytic performance of ZnO nanowires. Compared with as‐grown ZnO nanowires, the photocatalytic performance of ZnO under dose of 5 × 1015 cm−2 was efficiently improved because of the bandgap energy decreasing and the introduction of oxygen vacancies defects. On one hand, the reduced bandgap energy improves the easy transfer process of electrons and holes, thus improving the charge separation efficiency, and visible‐light absorption. On the other hand, N ion irradiation increases oxygen vacancy defects and hinders the recombination of photo‐excited electrons and holes. This study has certificated that ion irradiation is an efficient way and created a new insight on the enhancement of photocatalytic activity.

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Optical absorption and photoluminescence of Ag interlayer modulated ZnO film in view of their application in Si solar cells

Cited by 21 publications

References 49 publications

Honeycomb-like ZnO Mesoporous Nanowall Arrays Modified with Ag Nanoparticles for Highly Efficient Photocatalytic Activity

Honeycomb-like ZnO Mesoporous Nanowall Arrays Modified with Ag Nanoparticles for Highly Efficient Photocatalytic Activity

Dependence of lattice strain relaxation, absorbance, and sheet resistance on thickness in textured ZnO@B transparent conductive oxide for thin-film solar cell applications

Effect of nitrogen ion irradiation treatment to the enhancement of ZnO photocatalytic performance

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