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Power conversion efficiency studies of vacuum evaporated n-CdSe0.6Te0.4 semiconducting thin film/(aq) ferro-ferricyanide electrolyte photoelectrochemical solar cells
V. Damodara das
Published in Elsevier Ltd
1997
Volume: 103
   
Issue: 3
Pages: 173 - 178
Abstract
Photoelectrochemical (PEC) solar cells made using as-grown polycrystalline thin films of n-CdSe0.6Te0.4 (thickness ≈ 5000 Å) (prepared by vacuum thermal flash evaporation with a deposition rate of 20 ± 1 Å s-1 in a vacuum better than 5 × 10-5 torr on indium oxide coated microslide glass plates [σ = 1.25 × 104 (Ω-cm)-1] held at 200°C) dipped in aqueous ferro-ferricyanide electrolyte have been studied to evaluate the conversion efficiency under white light illumination intensity of 100 mW cm-2 (AM1). Mott - Shottky plots have been drawn (in the dark condition) to evaluate the semiconductor parameters. The reasons for the observed high power conversion efficiency and high quantum efficiency in relation to the semiconductor parameters are explained. The films have been characterized by X-ray diffraction for structural studies, Energy Despersive Analysis of X-rays (EDAX) for compositional analysis, Scanning Electron Microscopy (SEM) technique for surface morphology studies and optical absorption for band gap determination. © 1997 Elsevier Science Ltd.
About the journal
JournalData powered by TypesetSolid State Communications
PublisherData powered by TypesetElsevier Ltd
ISSN00381098
Open AccessNo
Concepts (20)
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    Composition
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    Electrolytes
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    Energy gap
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    Evaporation
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    Light absorption
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    Morphology
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    Quantum efficiency
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    Scanning electron microscopy
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    Semiconducting cadmium compounds
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    Semiconducting films
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    Transmission electron microscopy
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    X ray diffraction
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    ENERGY DISPERSIVE ANALYSIS OF X RAY
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    FERRO FERRICYANIDE ELECTROLYTE
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    LIGHT ILLUMINATION INTENSITY
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    MOTT-SHOTTKY PLOT
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    Photoelectrochemical solar cell
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    Power conversion efficiency
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    VACUUM THERMAL FLASH EVAPORATION
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    Solar cells