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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Journal ArticleDOI
Hydrothermal Growth of TiO2 Nanorod Arrays and In Situ Conversion to Nanotube Arrays for Highly Efficient Quantum Dot‐Sensitized Solar Cells
TL;DR: TiO2 nanorod (NR) and nanotube (NT) arrays grown on transparent conductive substrates are attractive electrode for solar cells and are in situ converted into NT arrays by hydrothermally etching.
Journal ArticleDOI
Near-Infrared Active Lead Chalcogenide Quantum Dots: Preparation, Post-Synthesis Ligand Exchange, and Applications in Solar Cells
Aabhash Shrestha,Aabhash Shrestha,Munkhbayar Batmunkh,Munkhbayar Batmunkh,Munkhbayar Batmunkh,Antonio Tricoli,Shi-Zhang Qiao,Sheng Dai,Sheng Dai +8 more
TL;DR: This Review elaborate the application of colloidal synthesis techniques for the preparation of lead chalcogenide based QDs and their solution-phase ligand exchange, and specifically focuses on the influence of surface ligands on the synthesis of QDs
Journal ArticleDOI
High Open Circuit Voltage Quantum Dot Sensitized Solar Cells Manufactured with ZnO Nanowire Arrays and Si/ZnO Branched Hierarchical Structures
Pitchaimuthu Sudhagar,Taeseup Song,Dong Hyun Lee,Iván Mora-Seró,Juan Bisquert,Michael J. Laudenslager,Wolfgang M. Sigmund,Won Il Park,Ungyu Paik,Yong Soo Kang +9 more
TL;DR: In this article, an appropriated nanostructure of wide band gap semiconductor electrode allows to reduce the recombination process, with a significant enhancement of Voc as high as 0.77 V has been demonstrated for ZnO nanowires array electrodes.
Journal ArticleDOI
Resonantly enhanced multiple exciton generation through below-band-gap multi-photon absorption in perovskite nanocrystals.
Aurora Manzi,Aurora Manzi,Yu Tong,Yu Tong,Julius Feucht,Julius Feucht,En-Ping Yao,En-Ping Yao,Lakshminarayana Polavarapu,Lakshminarayana Polavarapu,Alexander S. Urban,Alexander S. Urban,Jochen Feldmann,Jochen Feldmann +13 more
TL;DR: The authors show the combined interaction of below-band-gap multi-photon absorption and multiple exciton generation in perovskite nanocrystals, leading to an enhanced interband photoluminescence emission under resonant conditions.
Journal ArticleDOI
Thermodynamic Equilibrium-Driven Formation of Single-Sized Nanocrystals: Reaction Media Tuning CdSe Magic-Sized versus Regular Quantum Dots
Kui Yu,Michael Z. Hu,Ruibing Wang,Mickaël Le Piolet,Marion Frotey,Md. Badruz Zaman,Xiaohua Wu,Donald M. Leek,Ye Tao,Diana Wilkinson,Chunsheng Li +10 more
TL;DR: In this article, a thermodynamic equilibrium-driven formation of colloidal single-sized nanoparticle ensembles is proposed and demonstrated, which addresses the controlled formation of CdSe magic-sized and regular quantum dots (MSQDs and RQDs).
References
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Journal ArticleDOI
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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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The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
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Journal ArticleDOI
Semiconductor Nanocrystals as Fluorescent Biological Labels
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