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Showing 1 to 13 of 13 for “"ZnO:Al"”.
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Poly-Si films on ZnO:Al coated glass prepared by the aliminium-induced layer exchange process
Die Herstellung von polykristallinen Silizium-Schichten (poly-Si) auf mit transparenten, leitfähigen Oxiden (TCO – transparent conductive oxide) beschichteten Glassubstraten eröffnet neue Möglichkeiten für die Entwicklung von Solarzellen. Diese Arbeit behandelt das Wachstum von poly-Si mit großen …
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Investigation of opto-electronical properties of DC magnetron sputtered ZnO:Al films with respect to the layer thickness, annealing temperature and resistance inhomogeneity
Investigation of opto-electronical properties of DC magnetron sputtered ZnO:Al films with respect to the layer thickness, annealing temperature and resistance inhomogeneity
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Alternative transparent electrodes for organic light emitting diodes
Solid state lighting is a new environmentally friendly light source. So far, light emitting diodes (LEDs) and organic LEDs (OLEDs) have been presented as candidates with potentially high efficiency. Recent advances of OLEDs in device architecture, light-out coupling, and materials have ensured high …
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Preparation And Characterization Of Cigss Solar Cells And Pv Module Data Analysis
… CIGSS solar cell fabrication at FSEC's PV Materials Lab involves a series of steps that were all carried out manually in the past. A LABVIEW program has been written to carry out automated sputter deposition of Mo back contact, CuGa, In metallic precursors on a soda lime glass substrate using a …
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Electrical Transport and Scattering Mechanisms in Thin Silver Films for Thermally Insulating Glazing
… for the infrared reflectance is the electrical conductance of the layer stack - the better the conductance the higher the reflectance. Electrically conductive films of thicknesses smaller than the electron mean free path exhibit a strong increase in the residual resistivity proportional to …
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Growth and Characterisation of Spray Pyrolytic Doped Zinc and Aluminium Oxide Spectral-Selective thin Films
Metal oxide thin films have been used in thin film solar cells and other solar energy applications for many years. The main concern has been to improve their physical, electrical and optical properties in order to increase their efficiency and lower their production costs. Zinc oxide doped with …
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Growth and Characterisation of Spray Pyrolytic Doped Zinc and Aluminium Oxide Spectral-Selective thin Films
Metal oxide thin films have been used in thin film solar cells and other solar energy applications for many years. The main concern has been to improve their physical, electrical and optical properties in order to increase their efficiency and lower their production costs. Zinc oxide doped with …
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Characterization of industrially processed chalcopyrite solar cells with varied absorber composition
… thesis by publication loss mechanisms in industrially processed chalcopyrite thin film solar cells of the conventional ZnO:Al/i-ZnO/CdS/Cu(In,Ga)(Se,S)2/Mo layer structure investigated. The results of this thesis were obtained within two independent projects with different industry partners each …
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Präparation und Charakterisierung von Cadmium-Stannat als alternatives transparentes leitfähiges Oxid
… Transmission von 85% bei 550 nm wurden realisiert. Die Leitfähigkeit der CTO-Schichten erreicht 2800 Omega -1 cm -1 bei Ladungsträgerdichten von 4x10 20 cm -3 und Ladungsträgerbeweglichkeiten von 41 cm 2 V -1 s -1. Durch spektrale Rückrechnung mit Hilfe des Programmes RIG-VM wurden die …
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Preparation Of Efficient Cuin1-xgaxse2-ysy/cds Thin-film Solar Cells By Optimizing The Molybdenum Back Contact And Using Diethylselenide as Selenium Precursor
… sputtering for studying the adhesion and chemical reactivity with selenium and sulfur containing gas at maximum film growth temperature. Mo being a refractory material develops stresses, nature of which depends on the deposition power and argon pressure. It was found that the deposition sequence …
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Elektrochemische Legierungsabscheidung zur Herstellung von Cu2ZnSnS4 Dünnschichtsolarzellen
Die als Absorbermaterial für Dünnschichtsolarzellen geeigneten Verbindungshalbleiter Cu2ZnSnS4 (CZTS) und Cu2ZnSnS(4-x)Sex (x<3, CZTSSe) konnten erfolgreich durch Kombination der elektrochemischen Legierungsabscheidung und der anschließenden Sulfurisierung in H2S-haltiger Atmosphäre hergestellt …
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Optical Modeling of Solar Cells
… rise to a multitude of combinations of materials and cell parameters such as thickness, thin film growth conditions, ordering of layers and tandem cells. Experimentally investigating these combinations to optimize cell performance is expensive and time consuming. Computer simulations of the …
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Solar Driven Photoelectrochemical Water Splitting For Hydrogen Generation Using Multiple Bandgap Tandem Of Cigs2 Pv Cells And Thin Film Photocatalyst
… thin film solar cells for photoelectrochemical (PEC) water splitting to produce very pure hydrogen and oxygen. Efficiencies obtained using CIGS2 have been lower than those achieved using CuInSe2 and CuIn1-xGaxSe2. The basic limitation in the efficiencies is attributed to lower open circuit …