CdSe/TiO2 nanocrystalline solar cells

Fang, Jinghuai; Lu, Xiaomei; Zhang, X.F.; Fu, Degang; Lu, Zhiyun

doi:10.1016/s0968-5677(98)00109-6

Cited by 10 publications

(5 citation statements)

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“…The CdSe layer can be used for the p-n junction solar cells because of their low cost and high energy harvesting efficiency of up to 11 %. [4] These colour existed when the size of CdSe become smaller where shorter wavelength,higher energy and electronic transitions correspond to smaller crystal size [5].CdSe can apply in many application such as solar cells,light emmiting diod (LED) and biological labeling [1]. Many researcher have attempted to increase the electron transport rate while maintaining the TiO 2 electrode.TiO 2 is not good in electron conductor if compared with others such as CdS,CdSe and CdTe ,with electron mobility is ~10 3 cm 2 /Vs [4].…”

Section: Introductionmentioning

confidence: 99%

CdSe Thin Film by Using Spin-Coating

Rosmani

Abdullah

Rusop

2012

AMR

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CdSe thin film was prepared by using spin coating method .The surface morphology of CdSe thin films can be used as the main material in solar cells application, by using sodium selenosulfate as a selenium source and cadmium chloride as cadmium precursor. The solution for each sample had with different molar ratio of cadmium chloride and sodium selenosulfate to know the comparison between the samples. The spin for each samples were constant parameter with 3000 rpm at 30 seconds and dry in ambient temperature. The characterization using atomic force microscopy (AFM) to know the surface morphology of CdSe thin film. The important thing in this paper was to know the surface morphology of CdSe thin films as the comparison with other experiment for solar cells application.

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Section: Introductionmentioning

confidence: 99%

CdSe Thin Film by Using Spin-Coating

Rosmani

Abdullah

Rusop

2012

AMR

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“…However, as we know, one-dimensional TiO 2 nanomaterials as a wide band gap semiconductor material can absorb UV light only, and this limits its application to some extent. On the other hand, semiconductor QDs, such as CdS, PbS, and CdSe, have also been the subject of considerable interest as light harvesters in DSSCs as an alternative to organic dyes [26][27][28][29] . The use of semiconductor QDs as the sensitizers in solar cell applications has some advantages [30] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of sodium titanate nanotubes modified by CdSe quantum dots and their photovoltaic characteristics

Zhang

Cheng

et al. 2008

Sci. China Ser. B-Chem.

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Sodium titanate nanotubes have been prepared and modified chemically with CdSe quantum dots (QDs) using bifunctional modifiers (HS-COOH). Their photovoltaic characteristics have also been studied. The results indicate that the surface photovoltage response of nanotubes extends to the visible light region, and the intensity of surface photovoltage is enhanced after modification with CdSe QDs. The field-induced surface photovoltage spectroscopy (FISPS) shows that sodium titanate nanotubes have different photovoltaic response before and after modification. That is, the surface photovoltaic response of pure sodium titanate nanotubes increases with the enhancement of positive applied bias and decreases with the enhancement of negative applied bias. Meanwhile, the surface photovoltaic response of CdSe modified sodium titanate nanotubes is different from that of the pure sodium titanate nanotubes. The whole spectrum increases with the enhancement of applied bias at the first stage. However, when the applied bias reaches a certain value, the surface photovoltage response keeps increasing in some spectrum regions, while decreasing in other spectrum regions. This novel phenomenon is explained by using an electric field induced dipole model. sodium titanate nanotube, CdSe, surface photovoltage spectroscopy, diffusion mechanism, drift mechanism

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“…Titanium oxide (TiO 2 ) is one of the most important materials in the painting, optical, electrical [1], catalysis [2] and solar cell [3] application. Many processing methods such as sol-gel [4], plasma spray [5], CVD [6] and reactive magnetron sputtering [7] can be used to prepare TiO 2 materials in powder or thin film type.…”

Section: Introductionmentioning

confidence: 99%