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- W2287477816 abstract "The lowering of the work function (Φ) can lead to a better field emission (FE) behavior at lower threshold fields. We report on enhanced FE from randomly oriented and faceted Au-capped ZnO hetero-nanostructures (HNs) having more oxygen defects. Large-area arrays of non-aligned, faceted Au-capped ZnO HNs, such as nanowires (NWs) and triangular nanoflakes (TNFs) are grown using the chemical vapor deposition (CVD) method. Enhanced FE properties from the TNF sample resulted in a turn-on field as low as 0.52 V μm(-1) at a current density of 0.1 mA cm(-2) and a field enhancement factor (β) as high as ≈5.16 × 10(5). Under similar experimental conditions, drawing the same current density from an NW specimen needs a higher turn-on field (0.86 V μm(-1)) and to exhibit nearly four times less field enhancement factor compared to the TNFs samples. X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) measurements confirm the presence of more oxygen defects in the TNF samples compared to the NW samples. Kelvin probe force microscopy (KPFM) measurements show the average local work function to be 4.70 ± 0.1 eV for the TNF sample, which is ≈ 0.34 eV lower than the NW sample. Using density functional theory (DFT) calculations, the estimated Φ values are found to be 4.98 eV for ZnO(0001), 4.17 eV for Au(001)/ZnO(0001) and 3.91 eV for Au(001)/Ovac-ZnO(0001) surfaces. The DFT results are qualitatively in agreement with our experimental results. The presence of Au nanostructures on top of O-deficient and sharp-tipped TNFs results in enhanced FE performance following their reduced tunneling barrier via pinning of effective Φ." @default.
- W2287477816 created "2016-06-24" @default.
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- W2287477816 date "2016-02-17" @default.
- W2287477816 modified "2023-09-27" @default.
- W2287477816 title "Tuning the work function of randomly oriented ZnO nanostructures by capping with faceted Au nanostructure and oxygen defects: enhanced field emission experiments and DFT studies" @default.
- W2287477816 cites W1527498591 @default.
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- W2287477816 cites W1970127494 @default.
- W2287477816 cites W1980330761 @default.
- W2287477816 cites W1981264689 @default.
- W2287477816 cites W1981368803 @default.
- W2287477816 cites W1981540654 @default.
- W2287477816 cites W1982392480 @default.
- W2287477816 cites W1983326521 @default.
- W2287477816 cites W1987001634 @default.
- W2287477816 cites W1987671202 @default.
- W2287477816 cites W1987873499 @default.
- W2287477816 cites W1989520199 @default.
- W2287477816 cites W1995548609 @default.
- W2287477816 cites W1995634208 @default.
- W2287477816 cites W2000746105 @default.
- W2287477816 cites W2004711843 @default.
- W2287477816 cites W2007395042 @default.
- W2287477816 cites W2009508114 @default.
- W2287477816 cites W2010027695 @default.
- W2287477816 cites W2010790057 @default.
- W2287477816 cites W2019656571 @default.
- W2287477816 cites W2020291858 @default.
- W2287477816 cites W2022777300 @default.
- W2287477816 cites W2025930157 @default.
- W2287477816 cites W2031479933 @default.
- W2287477816 cites W2039098796 @default.
- W2287477816 cites W2043450790 @default.
- W2287477816 cites W2045020853 @default.
- W2287477816 cites W2048621094 @default.
- W2287477816 cites W2056378912 @default.
- W2287477816 cites W2057793771 @default.
- W2287477816 cites W2060296562 @default.
- W2287477816 cites W2064112528 @default.
- W2287477816 cites W2068625359 @default.
- W2287477816 cites W2070666273 @default.
- W2287477816 cites W2070736082 @default.
- W2287477816 cites W2073143619 @default.
- W2287477816 cites W2076727438 @default.
- W2287477816 cites W2077659855 @default.
- W2287477816 cites W2078308597 @default.
- W2287477816 cites W2078898456 @default.
- W2287477816 cites W2081769447 @default.
- W2287477816 cites W2083222334 @default.
- W2287477816 cites W2084244410 @default.
- W2287477816 cites W2092577294 @default.
- W2287477816 cites W2092778420 @default.
- W2287477816 cites W2093791126 @default.
- W2287477816 cites W2094847772 @default.
- W2287477816 cites W2100893889 @default.
- W2287477816 cites W2105069631 @default.
- W2287477816 cites W2113930676 @default.
- W2287477816 cites W2124599447 @default.
- W2287477816 cites W2127241066 @default.
- W2287477816 cites W2127391630 @default.
- W2287477816 cites W2136499440 @default.
- W2287477816 cites W2156856192 @default.
- W2287477816 cites W2161606023 @default.
- W2287477816 cites W2165316101 @default.
- W2287477816 cites W2313932853 @default.
- W2287477816 cites W2315850690 @default.
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- W2287477816 cites W3044406086 @default.
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- W2287477816 doi "https://doi.org/10.1088/0957-4484/27/12/125701" @default.
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