Journal ArticleDOI
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
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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A switchable fluorescent quantum dot probe based on aggregation/disaggregation mechanism
TL;DR: A facile switchable fluorescent QD probe for F(-) ions is reported, which is based on the hydrogen bonding-driven aggregation and the analyte-triggered disaggregation.
Journal ArticleDOI
Mn-Doped Multinary CIZS and AIZS Nanocrystals
TL;DR: The doping of the transition-metal ion Mn in these nanocrystals quenches this strong defect state emission and predominantly shows the spin-flip Mn emission, which can be the ideal versatile materials for widespread technological applications.
Journal ArticleDOI
Control of Nanostructures and Interfaces of Metal Oxide Semiconductors for Quantum-Dots-Sensitized Solar Cells
TL;DR: The recent advances in the control of nanostructures and interfaces in QDSCs and prospects for the further development with higher power conversion efficiency (PCE) have been discussed.
Journal ArticleDOI
Recent advances in quantum dot-sensitized solar cells: insights into photoanodes, sensitizers, electrolytes and counter electrodes
Meidan Ye,Xiaoyue Gao,Xiaodan Hong,Qun Liu,Chunfeng He,Xiang-Yang Liu,Xiang-Yang Liu,Changjian Lin +7 more
TL;DR: In this paper, a review of quantum dot-sensitized solar cells (QDSCs) with various architectures, including photoanodes with tunable band gaps, electrolytes in liquid, quasi-solid or solid state, and counter electrodes with great electrocatalytic activity is presented.
Journal ArticleDOI
Improving Hematite's Solar Water Splitting Efficiency by Incorporating Rare-Earth Upconversion Nanomaterials.
Ming Zhang,Yongjing Lin,Thomas J. Mullen,Thomas J. Mullen,Wei Feng Lin,Ling-Dong Sun,Chun-Hua Yan,Timothy E. Patten,Dunwei Wang,Gang-yu Liu +9 more
TL;DR: This work represents the initial attempt to utilize IR radiation, that is, adding rare-earth materials to existing photoelectrodes, by utilizing more solar radiation, thus improving the efficiency of existing solar materials and devices.
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.