Chemically resolved photovoltage measurements in CdSe nanoparticle films

Article Abstract:

The photovoltaic effects at selected regions in nanocrystalline CdSe-based films are investigated by using the light-induced chemically resolved electrical measurements (CREM) under controlled electrical conditions. The method is based on X-ray photoelectron spectroscopy (XPS) and it has unique capabilities for exploring charge trapping and charge transport mechanisms, combining spectrally filtered input signals with photocurrent detection and with a powerful, site-selective, photovoltage probe.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Selenium Compounds, Nanotechnology

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Photoelectrochemical studies of CdS nanoparticle modified electrodes: absorption and photocurrent investigations

Article Abstract:

The influence of excess charge on the absorbance spectrum of CdS nanoparticles is investigated by using modified electrodes. Photocurrent investigations performed in conjunction with the absorbance studies indicate that the bleaching occurs only when electrons are injected into the conduction band of the nanoparticles and the charge transfer to surface does not affect the adsorption.

Photoelectrons

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Characterization of ultrasmall CdS nanoparticles prepared by the size-selective photoetching technique

Article Abstract:

The wavelength range available for the preparation of monodisperse CdS nanoparticles by the size-selective photoetching technique is investigated. The light of the CdS nanoparticle decreases with a decrease in the wavelength of irradiation light and finally reaches the smallest size of about 1.7nm with the monochromatic light irradiation at 365nm.

Prepress Services, Platemaking services, Photoengraving

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