Journal ArticleDOI
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
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TLDR
In this paper, three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell, (ii) polymer−smiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell.Abstract:
The emergence of semiconductor nanocrystals as the building blocks of nanotechnology has opened up new ways to utilize them in next generation solar cells. This paper focuses on the recent developments in the utilization of semiconductor quantum dots for light energy conversion. Three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell (ii) polymer−semiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell. Modulation of band energies through size control offers new ways to control photoresponse and photoconversion efficiency of the solar cell. Various strategies to maximize photoinduced charge separation and electron transfer processes for improving the overall efficiency of light energy conversion are discussed. Capture and transport of charge carriers within the semiconductor nanocrystal network to achieve efficient charge separation at the electrode surface remains a major challenge. Directing the future resear...read more
Citations
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Journal ArticleDOI
Design and fabrication of silicon nanowires towards efficient solar cells
TL;DR: In this article, a review of the recent work on silicon nanowire solar cells is presented, and various techniques aiming to achieve high quality nanowires at low cost are introduced.
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Distance-Dependent Electron Transfer in Tethered Assemblies of CdS Quantum Dots and TiO2 Nanoparticles
TL;DR: In this article, electron injection from photoexcited CdS quantum dots (QDs) to TiO2 nanoparticles was characterized as a function of the interparticle separation within molecularly linked assemblies.
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Semiconductor Nanocrystal Quantum Dots as Solar Cell Components and Photosensitizers: Material, Charge Transfer, and Separation Aspects of Some Device Topologies
TL;DR: In this article, the choice of nanocrystal materials for quantum dot sensitized solar cells, the methods of quantum dot deposition on mesoporous wide band gap semiconductor layers, and combinations of quantum dots and classical ruthenium dyes as panchromatic sensitizers are discussed.
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Titanium dioxide nanostructures for photoelectrochemical applications
TL;DR: In this paper, a review comprehensively summarized the developments in the design and modification of titanium dioxide (TiO2) nanostructures as photoelectrode materials for photo-electrochemistry (PEC) applications, mainly in solar-fuel conversion.
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Photovoltage field-effect transistors
TL;DR: A photovoltage field-effect transistor that uses silicon for charge transport, but is also sensitive to infrared light owing to the use of a quantum dot light absorber, and shows that colloidal quantum dots can be used as an efficient platform for silicon-based infrared detection, competitive with state-of-the-art epitaxial semiconductors.
References
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Journal ArticleDOI
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
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Carbon Nanotubes--the Route Toward Applications
TL;DR: Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources; hydrogen storage media; and nanometer-sized semiconductor devices, probes, and interconnects.
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Polymer photovoltaic cells : enhanced efficiencies via a network of internal donor-acceptor heterojunctions
TL;DR: In this paper, the carrier collection efficiency and energy conversion efficiency of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C60 or its functionalized derivatives.
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The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.
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Semiconductor Nanocrystals as Fluorescent Biological Labels
TL;DR: Semiconductor nanocrystals prepared for use as fluorescent probes in biological staining and diagnostics have a narrow, tunable, symmetric emission spectrum and are photochemically stable.