Journal ArticleDOI
Photovoltaic properties of metal‐free phthalocyanines. I. Al/H2Pc Schottky barrier solar cells
Rafik O. Loutfy,James H. Sharp +1 more
TLDR
The photovoltaic properties of Schottky barier solar cells, made by dispersing particles of the x form of mental-free phthalocyanine in a binder polymer and sandwiching between NESA (SnO2/Sb) and aluminum electrodes, have been studied as discussed by the authors.Abstract:
The photovoltaic properties of Schottky barier solar cells, made by dispersing particles of the x form of mental‐free phthalocyanine in a binder polymer and sandwiching between NESA (SnO2/Sb) and aluminum electrodes, have been studied. A power conversion efficiency of over 6% for transmitted light at low power densities (0.06 W/m2) has been obtained for monochromatic irradiation at 670 nm. At peak solar power density (1400 W/m2) the extrapolated power conversion efficiency (η) for transmitted 670 nm irradiation decreases to 0.01%. The decrease in η with intensity was attributed to a space charge limitation due to nonlinear resistance. The devices exhibit Voc’s as high as 1.1 V, but are still limited by a field dependent quantum efficiency. Analysis of the action spectra of these devices revealed the formation of a thin photoactive depletion region (∼400 A) at the semiconductor/metal interface. These devices are capable of capturing 30% of the solar spectrum within the photoactive region. The effect of pig...read more
Citations
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Highly efficient organic devices based on electrically doped transport layers.
TL;DR: Most present-day semiconductor devices use inorganic crystalline materials, with single-crystalline silicon dominating other materials like GaAs by about a factor of 1000, but organic semiconductors have recently gained much attention and are already broadly applied as photoconductors for copiers and laser printers.
Journal ArticleDOI
Carbon Nanomaterials for Advanced Energy Conversion and Storage
TL;DR: Progress in the research and development of carbon nanomaterials during the past twenty years or so for advanced energy conversion and storage is reviewed, along with some discussions on challenges and perspectives in this exciting field.
Journal ArticleDOI
Electrochemically synthesised conducting polymeric materials for applications towards technology in electronics, optoelectronics and energy storage devices
TL;DR: The state of the art of novel electronically conducting polymeric materials is presented in this article, where the special emphasis is laid on the electrochemical synthesis of conducting polymers (CPs) including the choice of the monomers and solvents, supporting electrolytes and electrodes and structural aspects of these novel materials and the nature of the dopants which induce electrical conductivity in conjugated organic polymers.
Journal ArticleDOI
Organic solar cells: a review
TL;DR: The status of organic solar cell research is reviewed in this article, showing that the field is still in the early stages of development, but conversion efficiencies in sunlight of about 1% have been achieved.
References
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Journal ArticleDOI
Photovoltaic and rectification properties of Al/Mg phthalocyanine/Ag Schottky‐barrier cells
TL;DR: The photovoltaic and rectification properties of Al/Mg phthalocyanine/Ag sandwich cells are reported in this article, where a charge density of [inverted lazy s]1018/cm3 is estimated from C-V measurements.
Journal ArticleDOI
High‐efficiency organic solar cells
TL;DR: In this paper, an organic solar cell based on merocyanine dyes has been shown to achieve an improvement of 1% at ∼100 mW/cm2, which represents a significant improvement over previously reported values and brings such devices into the realm of practicality.
Journal ArticleDOI
Organic solar cells of hydroxy squarylium
V. Y. Merritt,H. J. Hovel +1 more
TL;DR: The photovoltaic properties of Schottky barrier solar cells made from thin films (100-1000 A) of the organic dye hydroxy squarylium have been studied as discussed by the authors.