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This paper presents photoelectrochemical properties of multi-walled carbon nanotube assembled with CdSe quantum dots. CdSe QDs are adsorbed on the surface of MWCNTs with a diameter of 4-5 nm.
In this paper, fabrication and characterization of QDSSCs based on CNT doped TiO2 mesopores film were reported. The improved efficiency is obtained for the device using CNT/TiO2/CdSe as the photoanode. The QDSSCs based on bare TiO2 and CNT doped TiO2 were named as sample A and B.
Summary form only given. CdS is a promising material for flat panel displays, light-emitting diodes, lasers, logic gates, and transistors. CdS has attracted special interest because it exhibits high photosensitivity and its band gap energy (2.41 eV) and electron affinity (4.5 eV) appear in the visible spectrum [1]. In this work, CdS deposition on surface of the vertical aligned carbon nanotube (VACNT)...
Summary form only given.Recently, there is an increased interest in quantum dot sensitized solar cell (QDSSC), i.e., applying semiconductor quantum dots (QDs) in dye-sensitized solar cells [1]. However, QDSSCs have shown comparatively lower efficiencies than expected. One possible reason for the poor efficiency of QDSSC is the difficulty of assembling the QDs on ZnO surface to obtain a well-covered...
Room temperature ferromagnetism in pure ZnO thin film prepared by sol-gel spin-coating method was observed, together with the obvious anisotropic property. In order to study the origin of ferromagnetism, ZnO thin films were rapidly annealed in N2 and O2 ambient in a repetitive way. Electrical and magnetic performance after each annealing was measured. It was found that ferromagnetism was quenched...
This paper reports recent experimental work on single junction II-VI semiconductor heterostructure solar cells consisting of n-type CdSe and p-type ZnTe grown by molecular beam epitaxy on GaSb substrates. The structural and crystalline properties are characterized using high-resolution X-ray diffraction measurements. The current-voltage measurements reveal expected diode-like rectifying characteristics...
ZnO acicular nanostructure was designed and grown from aqueous solution on the conductive substrate. The diameter of ZnO was 50 nm and length was about 5 mum. due to the large aspect ratio, the as-prepare ZnO sample was applied in filed emission with turn-on electric intensity of 3.2 V/mum and enhancement factor beta of 2830.
In this work, the low temperature solution method was used to synthesize the ZnO nanorods. Its density can by tuned by simple adjusting the thickness of the seed layer. ZnO seed layers with stepwise increasing thickness were first deposited on the Si substrate by direct current sputtering. Field emission properties of the ZnO nanorods with different density were systematically measured and compared...
ZnO nanowires were grown by direct oxidation of ZnO substrate. The field emission from ZnO nanowire has been studied. The obtained results indicated that the ZnO nanowire has good field emission properties.
ZnO nanowire films were grown on stainless-steel disc with a thin layer of Au as catalyst by thermal evaporation in a vacuum chamber. Morphology of the nanowires was investigated by scanning electron microscopy, while emission site distribution images were recorded by a CCD camera. The nanowires were then used as cathodes in a luminescent tube and its turn-on and threshold voltages and fields, and...
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