Effects of sulfidation on the optoelectronic properties of hydrothermally synthesized ZnO nanowires

Bu, Ian Y.Y.; Yeh, Yih-Min

doi:10.1016/j.ceramint.2012.01.038

Cited by 31 publications

(7 citation statements)

References 26 publications

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“…The characteristic diffraction peaks of the ZnO NRs are clearly observed in the diffraction patterns. The peak positions for the undoped and boron doped ZnO nanorod samples are in a close conformity with JCPDS card no.36-1451, space group P6 3 mc), verifying the hexagonal wurtzite ZnO structure of the samples [36]. No other secondary phase's peaks were observed in the XRD spectrum after doping boron, which indicates the single crystalline nature of the samples.…”

Section: Characterization Techniquessupporting

confidence: 74%

Hydrothermal growth of undoped and boron doped ZnO nanorods as a photoelectrode for solar water splitting applications

Sharma

Chakraborty

Thangavel

et al. 2017

J Sol-Gel Sci Technol

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Undoped and boron-doped ZnO nanorods (NRs) were grown on ITO glass substrates by using hydrothermal techniques. The as grown nanorods were investigated by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV-visible spectroscopy, and photoelectrochemical study. XRD spectra reveal the confirmations regarding the hexagonal wurtzite structure along with preferential orientation (002). The observation of (002) peak shows a red shift. The average size distribution of NRs in doped and undoped sample ranges from 169 to 191 nm. The absorption spectra clearly revealed the band gap tunability feature of the samples with a change in doping percentage. Photoluminescence spectra clearly indicate the presence of oxygen defects. Photocurrent density as high as ∼0.622 and 2.6 mA/cm 2 were obtained for undoped and 6% B-doped ZnO NRs arrays respectively, at +0.44 V vs. Ag/AgCl electrode under visible light AM 1.5 G (100 mW/cm 2 ) in 0.1 M electrolyte solutions of NaOH. More enhancement in photoconversion efficiency (PCE) from 0.491 to 2.054% was observed for undoped ZnO NRs and optimum 6% B-doped ZnO in 0.1 M NaOH electrolyte solution.

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Section: Characterization Techniquessupporting

confidence: 74%

Hydrothermal growth of undoped and boron doped ZnO nanorods as a photoelectrode for solar water splitting applications

Sharma

Chakraborty

Thangavel

et al. 2017

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

show abstract

“…Regardless of post sintering temperature, all the deposited samples exhibit some vertical aligned to the substrate surface. Usually, as-deposited ZnO nanowires synthesized in our laboratory (without Al 2 O 3 coating) are well-aligned and perpendicular to the growing surface [31,32] with length of 5 lm and diameter *50 nm. The loss of alignment is caused by the capillary force during the drying process of the Al 2 O 3 deposition.…”

Section: Methodsmentioning

confidence: 99%

Effects of post annealing temperature on formation of alumina core shell on zinc oxide nanowire: optoelectronic properties and dye sensitized solar cell applications

2014

J Mater Sci: Mater Electron

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Alumina coated zinc oxide (ZnO) nanowires were synthesized through the combination of hydrothermal growth and sol-gel deposition method. The effects of post annealing temperature on structural and optoelectronic properties of the deposited samples were evaluated using scanning electron microscopy, X-ray diffraction, energy dispersive spectroscopy, photoluminescence spectroscopy and Raman spectroscopy. It was found that the ZnO nanowire can be used as template for further functionalization. As a demonstration, dye sensitized solar cells were fabricated with the alumina coated ZnO nanowires.

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“…However, in our case this is beneficial toward enhanced intercalation. After centrifugation and collection the ZnO particles were added to a zinc nitrate/HMTA solution, which has been employed in the past for ZnO nanowire growth [11]. The zinc nitrate functions as a Zn source, whilst the HMTA preferentially absorbs onto the (010), (100) and (110) surfaces, leaving the c-axis for (002) ZnO growth.…”

Section: Methodsmentioning

confidence: 99%

“…For comparison, DSSCs were fabricated using hydrothermally synthesised ZnO nanowire-based photoanodes, as reported in detail elsewhere [11].…”

Section: Methodsmentioning

confidence: 99%

Effects of sulfidation on the optoelectronic properties of hydrothermally synthesized ZnO nanowires

Cited by 31 publications

References 26 publications

Hydrothermal growth of undoped and boron doped ZnO nanorods as a photoelectrode for solar water splitting applications

Hydrothermal growth of undoped and boron doped ZnO nanorods as a photoelectrode for solar water splitting applications

Effects of post annealing temperature on formation of alumina core shell on zinc oxide nanowire: optoelectronic properties and dye sensitized solar cell applications

One-pot synthesis of intercalating ZnO nanoparticles for enhanced dye-sensitized solar cells

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