Temperature-dependent photoluminescence and Raman investigation of Cu-incorporated ZnO nanorods

Yu, Jinhai; Lai, Yunfeng; Cheng, Shuying; Qiao, Zheng; Chen, Yan Hong

doi:10.1016/j.jlumin.2015.01.048

Cited by 10 publications

(2 citation statements)

References 39 publications

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“…These obtained parameters for ZnO NRs are comparable to the previous reported values of ZnO thin films, nanowires and quantum dots [36][37][38]. The full width and half maximum (FWHM) of D 0 X increases gradually with temperature increasing, which is in good agree with previous reported ZnO epitaxial layers, N-In codoped ZnO thin films and Cu incorporated ZnO NRs [39][40][41]. The temperature dependence PL intensity of ZnO NRs are shown in Fig.…”

Section: Wheresupporting

confidence: 91%

Temperature and excitation power dependence of photoluminescence of ZnO nanorods synthesized by pattern assisted hydrothermal method

Xian

Zheng

et al. 2017

Journal of Alloys and Compounds

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Pattern assisted ZnO nanorods (NRs) growth are performed using electron beam lithography (EBL) and hydrothermal method. The patterns of lines, circles and squares are prepared on polycrystalline ZnO seed layer using PMMA as photoresist. It is found that the ZnO NRs can only grow on the area with ZnO seed layer, not on the PMMA surface. The TEM results show that the ZnO NRs have single crystal structures with good orentation along the c-axis. The excitation power dependence of photoluminescence (PL) spectra of ZnO NRs shows that with excitation power increasing, the near band edge emission increases rapidly than the defects related visible emissions. The temperature dependence of PL spectra was measured in the temperature range of 13-300 K. The dependence of peak position and peak energy of exciton bound (D 0 X) emission of ZnO NRs on temperature were analyzed. Two non-radiative recombination channels for the D 0 X emission are discussed in detail.

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Section: Wheresupporting

confidence: 91%

Temperature and excitation power dependence of photoluminescence of ZnO nanorods synthesized by pattern assisted hydrothermal method

Xian

Zheng

et al. 2017

Journal of Alloys and Compounds

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show abstract

“…All of above can be summarised to the imperative role played by the acceptors. Most recent research on this subject reinforce or confirm previous argument [12,[15][16][17][18][19][20]. So far descriptive explanations have been provided on the various mechanisms making ZnO exhibit visible luminescence.…”

supporting

confidence: 79%

On the double-band luminescence of ZnO nanoparticles

2017

EPL

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Two luminescence bands from zinc oxide (ZnO) nanoparticles have been known and experimentally observed previously. The unanswered question is the mechanism leading to the visible spectrum in the blue or green region. So far there have been many postulations trying to elucidate this phenomenon, but none of them gives a mathematical expression that simultaneously expresses these two spectra. Here we interpret this phenomenon as the combination of distribution functions and the density of states of electrons and holes, precisely the product of the both. From the analysis, the narrow UV emission is predominantly attributed to the quantum confinement, and the product of the density of states and the distribution functions determines the visible spectrum. We find that varying the density and the effective mass of holes causes pronounced effect on both UV and visible, which reflects the fact of acceptors taking the main responsibility in the experimental observations.

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Anharmonicity effects in Cu-doped ZnO nanocombs by temperature-dependent Raman scattering

2016

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Temperature-dependent photoluminescence and Raman investigation of Cu-incorporated ZnO nanorods

Cited by 10 publications

References 39 publications

Temperature and excitation power dependence of photoluminescence of ZnO nanorods synthesized by pattern assisted hydrothermal method

Temperature and excitation power dependence of photoluminescence of ZnO nanorods synthesized by pattern assisted hydrothermal method

On the double-band luminescence of ZnO nanoparticles

Anharmonicity effects in Cu-doped ZnO nanocombs by temperature-dependent Raman scattering

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