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   Articles with "pbs quantum" as a keyword



Trap-State Suppression and Improved Charge Transport in PbS Quantum Dot Solar Cells with Synergistic Mixed-Ligand Treatments.

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recommendations! Published in 2017 at "Small"

DOI: 10.1002/smll.201700598

Abstract: The power conversion efficiency of colloidal PbS-quantum-dot (QD)-based solar cells is significantly hampered by lower-than-expected open circuit voltage (VOC ). The VOC deficit is considerably higher in QD-based solar cells compared to other types of… read more here.

Keywords: voc; pbs quantum; quantum dot; spectroscopy ... See more keywords

Stronger Coupling of Quantum Dots in Hole Transport Layer Through Intermediate Ligand Exchange to Enhance the Efficiency of PbS Quantum Dot Solar Cells

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recommendations! Published in 2024 at "Small Methods"

DOI: 10.1002/smtd.202400015

Abstract: Nowadays, the extensively used lead sulfide (PbS) quantum dot (QD) hole transport layer (HTL) relies on layer‐by‐layer method to replace long chain oleic acid (OA) ligands with short 1,2‐ethanedithiol (EDT) ligands for preparation. However, the… read more here.

Keywords: layer; pbs; quantum dot; pbs quantum ... See more keywords

PbS Quantum Dots Based on Physically Unclonable Function for Ultra High-Density Key Generation

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recommendations! Published in 2019 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-019-07660-2

Abstract: Secure data encryption depends on the one-way functions and copy protection relies on features that are hard to reproduce. Herein, we present the physically unclonable function (PUF) concept based on PbS quantum dots (QDS) for… read more here.

Keywords: pbs quantum; density; physically unclonable; unclonable function ... See more keywords
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Zn-doping enhances the photoluminescence and stability of PbS quantum dots for in vivo high-resolution imaging in the NIR-II window

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recommendations! Published in 2020 at "Nano Research"

DOI: 10.1007/s12274-020-2843-4

Abstract: Lead sulfide (PbS) quantum dots (QDs) are important near infrared (NIR) luminescent materials with tunable and strong emission covering a broad NIR region. However, their optical properties are quite sensitive to air, water, and high… read more here.

Keywords: window; high resolution; pbs quantum; stability pbs ... See more keywords

A novel, PbS:Hg quantum dot-sensitized, highly efficient solar cell structure with triple layered TiO2 photoanode

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recommendations! Published in 2018 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.02.140

Abstract: Abstract Hg-doped PbS quantum dot-sensitized solar cells (QDSSCs) were fabricated using successive ionic layer adsorption and reaction method with TiO 2 single layer, double layer and triple layer photoanode nanostructures. The triple layer TiO 2… read more here.

Keywords: pbs quantum; layer; photoanode; solar cell ... See more keywords

Constructing aligned single-crystalline TiO2 nanorod array photoelectrode for PbS quantum dot-sensitized solar cell with high fill factor

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recommendations! Published in 2017 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2017.05.060

Abstract: Abstract Low bandgap PbS quantum dots (QDs) have attracted special interests serving as promising sensitizers for developing high performance near-infrared responsive photovoltaics. However, the commonly studied successive ionic layer adsorption and reaction (SILAR) processed PbS… read more here.

Keywords: pbs; pbs quantum; sensitized solar; solar cell ... See more keywords

Temperature-dependent spontaneous emission of PbS quantum dots inside photonic nanostructures at telecommunication wavelength

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recommendations! Published in 2017 at "Optics Communications"

DOI: 10.1016/j.optcom.2016.09.059

Abstract: Abstract Spontaneous emission of PbS quantum dots (QDs) in different photonic nanostructures has been studied. We use the temperature-dependent exciton photoluminescence and the classic dipole near interface models to understand the spontaneous emission control at… read more here.

Keywords: pbs; pbs quantum; emission pbs; spontaneous emission ... See more keywords

Size-Dependent PbS Quantum Dot Surface Chemistry Investigated via Gel Permeation Chromatography

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recommendations! Published in 2020 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.0c02024

Abstract: We report the first comprehensive study on the purification of PbS quantum dots (QDs) using gel permeation chromatography (GPC). GPC enables the efficient and repeatable separation of unbound small... read more here.

Keywords: permeation chromatography; pbs quantum; chemistry; gel permeation ... See more keywords
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S-Rich PbS Quantum Dots: A Promising p-Type Material for Optoelectronic Devices

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recommendations! Published in 2020 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.0c03865

Abstract: PbS colloidal quantum dots (CQDs) are versatile building blocks for bottom-up fabrication of various optoelectronic devices. The transport properties of thin films of this class of materials depend... read more here.

Keywords: promising type; optoelectronic devices; pbs quantum; rich pbs ... See more keywords

Topologically Engineered High-Q Quasi-BIC Metasurfaces for Enhanced Near-Infrared Emission in PbS Quantum Dots.

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recommendations! Published in 2025 at "Nano letters"

DOI: 10.1021/acs.nanolett.4c05710

Abstract: Enhancing photoluminescence (PL) efficiency in colloidal quantum dots is pivotal for next-generation near-infrared photodetectors, imaging systems, and photonic devices. Conventional methods, especially metal-based plasmonic structures, suffer from large optical losses, which limits their practical use.… read more here.

Keywords: quasi bic; quasi; pbs quantum; quantum dots ... See more keywords

Tandem Solar Cells from Solution-Processed CdTe and PbS Quantum Dots Using a ZnTe-ZnO Tunnel Junction.

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recommendations! Published in 2017 at "Nano letters"

DOI: 10.1021/acs.nanolett.6b04423

Abstract: We developed a monolithic CdTe-PbS tandem solar cell architecture in which both the CdTe and PbS absorber layers are solution-processed from nanocrystal inks. Due to their tunable nature, PbS quantum dots (QDs), with a controllable… read more here.

Keywords: pbs; solution processed; cdte pbs; pbs quantum ... See more keywords