Indium–tin Oxide Films Obtained by DC Magnetron Sputtering for Improved Si Heterojunction Solar Cell Applications*Project Supported by the National High Technology Research and Development Program of China (Grant No. 2011AA050501). PDF Download
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Languages : en
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Author: Dr. B. Radhakrishna
Publisher: Lulu.com
ISBN: 0359510280
Category : Education
Languages : en
Pages : 132
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Badeker in 1907 observed that some materials are optically transparent in the visible light and electrically conducting [1]. Because of the increasing interest in electrically and electronically active materials, the search for materials and the techniques for producing semi-transparent electrically conducting films have gained much importance. In an intrinsic stoichiometric material, it is not possible to have simultaneously high transparency (>80%%) in the visible region and high electrical conductivity (>103 Ω cm-1). A variety of metals in thin film form (
Author: Gady Golan
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Languages : en
Pages :
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Category :
Languages : en
Pages : 22
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Author: Oleksandr Malik
Publisher:
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Category : Technology
Languages : en
Pages :
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High-quality indium tin oxide (ITO) films have been fabricated using a DC sputtering technique in a pure argon atmosphere with a postannealing in an oxygen environment at atmosphere pressure. Structural, morphological, and electro-optical parameters of the ITO films were studied at different annealing temperatures for the films fabricated on two types of glass substrates, soda lime and alkali-free substrates. A comparative analysis shows that low-cost soda lime substrates are suitable for the fabrication of high-quality nanocrystalline ITO films after annealing them at 300°C. This result is of great importance for reducing the cost of thin film solar cells, in which ITO films serve as transparent conducting electrodes. We present a comparison of the properties of sputtered ITO films with those fabricated using a spray pyrolysis deposition technique, which is useful for some optoelectronic applications.
Author: Öcal Tuna
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838365695
Category :
Languages : en
Pages : 100
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In this study Indium Tin Oxide (ITO) thin films were grown by both DC and RF magnetron sputtering techniques. To know deposition rate of ITO, system was calibrated for both DCMS and RFMS and then ITO were grown on glass substrate with the thickness of 70 nm and 40 nm by changing substrate temperature. The effect of substrate temperature, film thickness and sputtering method on structural, electrical and optical properties were investigated. The results show that substrate temperature and film thickness substantially affects the film properties, especially crystallization and resistivity. The thin films grown at the lower than 150 oC showed amorphous structure. However, crystallization was detected with the furtherincrease of substrate temperature. Band gap of ITO was calculated to be about 3.64eV at the substrate temperature of 150 oC, and itwidened with substrate temperature increment. From electrical measurements the resistivity at room temperature was obtained 1.28x10-4 and 1.29x10-4 D-cm, for DC and RF sputtered films, respectively. We also measured temperature dependence resistivity and the Hall coefficient of the films, and we calculated carrier concentration and Hall mobility."
Author: Xiaowei Gu
Publisher:
ISBN:
Category : Oxide coating
Languages : en
Pages : 228
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Author: Philip Infante
Publisher:
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Category : Indium
Languages : en
Pages : 212
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Indium tin oxide (ITO) is a widely used transparent conductor due to its ability to ofer higher conductance and better etch ability over other transparent conductors. ITO has been utilized as transparent electrodes in liquid crystal displays and heterojunction solar cells, as transparent heat reflecting films, as the sensing medium in gas sensors, and in optoelectronic device applications. In general, these films are characterized by high transparency in the visible spectra, high reflectance in the IR and absorption in the UV regions, and near metallic conductivity.
Author: Amber Nicole Reed
Publisher:
ISBN:
Category : Oxide coating
Languages : en
Pages : 48
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Author: Chi Keung Fung
Publisher:
ISBN:
Category : Thin films
Languages : en
Pages :
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