Nano-structured Cu2O solar cells fabricated on sparse ZnO nanorods

Chen, Jhin Wei; Perng, Dung Ching; Fang, Jia Feng

doi:10.1016/j.solmat.2011.04.034

Cited by 60 publications

(48 citation statements)

References 30 publications

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“…The less the grain size means better solid liquid interface and more surface area. These are also support to enhance efficiency [36]. The red shift in band gap is another one possible reason for improved efficiency.…”

Section: Photoelectrochemical Cell Performance (J-v Measurement)mentioning

confidence: 55%

Photoelectrochemical cell studies of Fe2+ doped ZnSe nanorods using the potentiostatic mode of electrodeposition

Lohar

Jadhav

Takale

et al. 2015

Journal of Colloid and Interface Science

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Section: Photoelectrochemical Cell Performance (J-v Measurement)mentioning

confidence: 55%

Photoelectrochemical cell studies of Fe2+ doped ZnSe nanorods using the potentiostatic mode of electrodeposition

Lohar

Jadhav

Takale

et al. 2015

Journal of Colloid and Interface Science

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“…where d is the film thickness and T is the transmittance [34]. It should be noted that reflection from the layers is not taken into account.…”

Section: Resultsmentioning

confidence: 99%

Surface Morphology, Structural and Optical Properties of MgO Films Obtained by Spray Pyrolysis Technique

et al. 2016

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X-ray diffraction, atomic force microscopy, field emission scanning electron microscopy, UV-visible photometry, and photoluminescence measurements were used to investigate the surface morphology and structural and optical properties of MgO films. Magnesium oxide films deposited by the spray pyrolysis technique were studied. The substrate temperature was varied from Ts = 643 K to 693 K. Magnesium chloride hexahydrate (MgCl2 ·6H2O), dissolved in deionized water, was used as the precursor solution. It was established that the single phase films crystallize into a cubic structure with very fine crystallite size (about 2 nm). The optical band gaps of the samples were varied from 3.64 eV to 3.70 eV. Also, the films have a high level of transmittance of 90%. Photoluminescence spectra show the emission peaks at approximately 412 nm (3.00 eV) and 524 nm (2.38 eV). The peak with the energy of 3.00 eV is ascribed to holes trapped in magnesium ion vacancies acting as acceptors (F + center). The broad emission peak at 524 nm is related to the presence of defects (F − centers) associated with oxygen ion vacancies.

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“…53 54 The exact reports for this value vary from 1.8 eV to 2.5 eV. [53][54][55][56][57] This variation may be assigned to sample preparation method. 57 However, the nature of this optical transition is not as simple as in other direct semiconductors.…”

Section: Cu 2 O Sensitized Zno Nrmentioning

confidence: 99%

Optical Properties of Sensitized Zinc Oxide Nanorods Electrochemically Prepared

Pereyra¹,

Marotti²,

Guerguerian³

et al. 2013

energy environ focus

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The optical properties of bare ZnO nanorods and sensitized nanostructures, with Cu 2 O and CdS, are comparatively studied. These nanostructures may show improved photovoltaic performance compared to planar ones. ZnO nanorod arrays were grown by electrochemical deposition. In a second step, Cu 2 O was also deposited electrochemically, while for CdS successive ion layer adsorption and reaction techniques were used. The experimental results are interpreted using numerical simulation based on an effective medium theory. Bare nanorod samples reveal mainly the direct ultraviolet absorption edge of ZnO (between 3.25 and 3.30 eV) and a monotonically increasing transmittance from the ultraviolet into the red. This increase is originated in light scattering, probably by the nanometric structure of the samples. For the sensitized samples reduced transmittance in the solar spectrum region is observed and several well-defined absorption edges appear. Spectral absorption edge shifts are interpreted comparing with numerical simulations. For CdS the measured shifts are larger than the ones obtained from numerical simulations. The difference may be due to the combined influence of sub-bandgap absorption, light scattering in the nanorod array and quantum confinement in the nanocrystalline structure of sensitizer layers. For Cu 2 O its more complex electronic structure gives larger dispersion in the results although major absorption edges are clearly observed.

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Nano-structured Cu2O solar cells fabricated on sparse ZnO nanorods

Cited by 60 publications

References 30 publications

Photoelectrochemical cell studies of Fe2+ doped ZnSe nanorods using the potentiostatic mode of electrodeposition

Photoelectrochemical cell studies of Fe2+ doped ZnSe nanorods using the potentiostatic mode of electrodeposition

Surface Morphology, Structural and Optical Properties of MgO Films Obtained by Spray Pyrolysis Technique

Optical Properties of Sensitized Zinc Oxide Nanorods Electrochemically Prepared

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