Functional properties of amine-passivated ZnO nanostructures and dye-sensitized solar cell characteristics

Navaneethan, M.; Archana, J.; Arivanandhan, M.; Hayakawa, Y.

doi:10.1016/j.cej.2012.10.001

Cited by 54 publications

(17 citation statements)

References 50 publications

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“…The core-level spectra of the Zn 2p state of pure ZnS displayed two peaks centred at 1022.97 eV and 1045.92 eV which corresponded to Zn 2p 3/2 and Zn 2p 1/2 suggesting the existence of Zn 2+ . 42,43 The energy difference between the two binding energies was 22.95 eV, which was in good agreement with the standard value. 44,45 The peak positions of samples ZC1 were shied from 1022.97 to 1022.87 eV and from 1045.92 to 1045.82 eV when compared to pure ZnS.…”

Section: Resultssupporting

confidence: 75%

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

et al. 2017

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Ultrafast visible light active CuS/ZnS nanostructured photocatalysts were synthesized by a hydrothermal method. The effect of the CuS concentration on the morphological, structural and optical properties of ZnS nanostructures were investigated. X-ray diffraction analysis indicated the formation of CuS/ZnS phases with good crystallinity. The presence of ZnS on CuS was confirmed by X-ray photoelectron spectroscopy, elemental mapping, scanning electron microscopy and high resolution transmission electron microscopy analyses. CuS/ZnS nanocomposites efficiently decomposed methylene blue (MB) upon irradiation with visible light. The degradation time was 3 times faster than that of bare ZnS and CuS.The scavenger analysis results revealed that photogenerated superoxide (O 2 À c) radicals were the main reactive species for the degradation of MB. The maximum degradation efficiency of 95.51% was observed within 5 min for samples of 0.050 M CuS/ZnS composites. The obtained results suggested that the enhanced photocatalytic activity was due to the formation of CuS/ZnS heterojunctions which led to the efficient separation of the photoinduced carriers.

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Section: Resultssupporting

confidence: 75%

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

et al. 2017

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“…Finally annealing at 648 K leads to the creation of monodispersed CdO nanospheres. The formation mechanism to produce CdO nanostructures is obtained from [18] …”

Section: Fesem and Tem Analysismentioning

confidence: 99%

“…Archana et al report the synthesis of triethylamine capped ZnSe nanostructures with bean like morphology by using an inexpensive wet chemical method [17]. Navaneethan et al [18] synthesized the monodispersed ZnO nanosheets by a facile wet chemical method using hexamethylenetetramine (HMTA) as an organic ligand. Optical and surface morphological properties of triethylamine passivated lead sulfide nanoparticles were synthesized and characterized by various techniques [19].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, FTIR, UV–Vis and Photoluminescence characterizations of triethanolamine passivated CdO nanostructures

Anandhan

Kumar²

2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…In 2007, Suh et al [20] prepared ZnO thin film photoanode immersed in N719 dye for 24 h at room temperature reached 0.34 % efficiency for the pillarshaped ZnO nanowire DSSCs and 0.46 % for branched structure of ZnO nanowires. In 2012, Navaneethan et al [21] prepared ZnO thin film photoanode using N719 dye having efficiency of about 0.20, 2.20, 3.21 and 2.80 % for four different samples. In 2013, Feng et al [22] prepared ZnO thin film photoanode immersed in N719 dye for 10 h at 40°C and the obtained efficiency was for ZnO nanowires-1.45 %, ZnO disordered nanorods-3.31 % and hierarchial nanostructures-5.16 %.…”

Section: Introductionmentioning

confidence: 99%

Characterization of spray-deposited ZnO thin films for dye-sensitized solar cell application

Rani

Ernest

2016

Appl. Phys. A

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ZnO films have been prepared on glass plates with concentrations of 0.025, 0.05 and 0.1 M each consisting of 50 ml of solution using the spray pyrolysis technique. A dye-sensitized solar cell (DSSC) was constructed by means of the obtained film for 0.1 M which was also coated above the ITO substrate. N-719, iodide and platinum-coated ITO glass plates were used as the dye, electrolyte and counter electrode, respectively. XRD confirms that the structure of the film was polycrystalline having wurtzite structure. The surface with pores was found from the FESEM studies. The DSSC shows an optical transmittance of approximately 70 % in the visible region. The photoluminescence study reveals the electronic structure of the material. The efficiency of the DSSC measured for a 0.1 M ZnO thin film by sensitizing every 2 h was g = 0.51, 0.80, 0.54, 1.12, 2.11, 2.71, 3.15 and 3.20 %, respectively.

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Functional properties of amine-passivated ZnO nanostructures and dye-sensitized solar cell characteristics

Cited by 54 publications

References 50 publications

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

Synthesis, FTIR, UV–Vis and Photoluminescence characterizations of triethanolamine passivated CdO nanostructures

Characterization of spray-deposited ZnO thin films for dye-sensitized solar cell application

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