Search Results - "Siebbeles, Laurens D. A."
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All-printed thin-film transistors from networks of liquid-exfoliated nanosheets
Published in Science (American Association for the Advancement of Science) (07-04-2017)“…All-printed transistors consisting of interconnected networks of various types of two-dimensional nanosheets are an important goal in nanoscience. Using…”
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Epitaxially Connected PbSe Quantum-Dot Films: Controlled Neck Formation and Optoelectronic Properties
Published in ACS nano (25-11-2014)“…Ligand exchange is a much-used method to increase the conductivity of colloidal quantum-dot films by replacing long insulating ligands on quantum-dot surfaces…”
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3
In situ study of the formation mechanism of two-dimensional superlattices from PbSe nanocrystals
Published in Nature materials (01-12-2016)“…A real-time study of the growth of two-dimensional nanocrystal superlattices with square periodicity shows the formation mechanism leading to the oriented…”
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Radiative and Nonradiative Recombination in CuInS2 Nanocrystals and CuInS2‑Based Core/Shell Nanocrystals
Published in The journal of physical chemistry letters (01-09-2016)“…Luminescent copper indium sulfide (CIS) nanocrystals are a potential solution to the toxicity issues associated with Cd- and Pb-based nanocrystals. However,…”
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5
Photoconductivity of PbSe Quantum-Dot Solids: Dependence on Ligand Anchor Group and Length
Published in ACS nano (27-11-2012)“…The assembly of quantum dots is an essential step toward many of their potential applications. To form conductive solids from colloidal quantum dots, ligand…”
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Nature and Decay Pathways of Photoexcited States in CdSe and CdSe/CdS Nanoplatelets
Published in Nano letters (10-12-2014)“…The nature and decay dynamics of photoexcited states in CdSe core-only and CdSe/CdS core/shell nanoplatelets was studied. The photophysical species produced…”
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Broadband Cooling Spectra of Hot Electrons and Holes in PbSe Quantum Dots
Published in ACS nano (27-06-2017)“…Understanding cooling of hot charge carriers in semiconductor quantum dots (QDs) is of fundamental interest and useful to enhance the performance of QDs in…”
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Single-particle properties of topological Wannier excitons in bismuth chalcogenide nanosheets
Published in Scientific reports (18-04-2023)“…We analyze the topology, dispersion, and optical selection rules of bulk Wannier excitons in nanosheets of Bi 2 Se 3 , a topological insulator in the family of…”
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Change in Tetracene Polymorphism Facilitates Triplet Transfer in Singlet Fission-Sensitized Silicon Solar Cells
Published in The journal of physical chemistry letters (15-10-2020)“…Singlet fission in tetracene generates two triplet excitons per absorbed photon. If these triplet excitons can be effectively transferred into silicon (Si),…”
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10
Understanding how junction resistances impact the conduction mechanism in nano-networks
Published in Nature communications (28-05-2024)“…Networks of nanowires, nanotubes, and nanosheets are important for many applications in printed electronics. However, the network conductivity and mobility are…”
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In Spite of Recent Doubts Carrier Multiplication Does Occur in PbSe Nanocrystals
Published in Nano letters (01-06-2008)“…Efficient carrier multiplication has been reported for several semiconductor nanocrystals: PbSe, PbS, PbTe, CdSe, InAs, and Si. Some of these reports have been…”
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Hole Cooling Is Much Faster than Electron Cooling in PbSe Quantum Dots
Published in ACS nano (26-01-2016)“…In semiconductor quantum dots (QDs), charge carrier cooling is in direct competition with processes such as carrier multiplication or hot charge extraction…”
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13
Direct generation of multiple excitons in adjacent silicon nanocrystals revealed by induced absorption
Published in Nature photonics (01-05-2012)“…The enhancement of carrier multiplication in semiconductor nanocrystals attracts a great deal of attention because of its potential in photovoltaic…”
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14
Effect of Structural Dynamics on Charge Transfer in DNA Hairpins
Published in Journal of the American Chemical Society (16-04-2008)“…We present a theoretical study of the positive charge transfer in stilbene-linked DNA hairpins containing only AT base pairs using a tight-binding model that…”
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15
Efficient Steplike Carrier Multiplication in Percolative Networks of Epitaxially Connected PbSe Nanocrystals
Published in ACS nano (23-01-2018)“…Carrier multiplication (CM) is a process in which a single photon excites two or more electrons. CM is of interest to enhance the efficiency of a solar cell…”
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16
Enhanced Hot-Carrier Cooling and Ultrafast Spectral Diffusion in Strongly Coupled PbSe Quantum-Dot Solids
Published in Nano letters (14-12-2011)“…PbSe quantum-dot solids are of great interest for low cost and efficient photodetectors and solar cells. We have prepared PbSe quantum-dot solids with high…”
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17
Helical Growth of Semiconducting Columnar Dye Assemblies Based on Chiral Perylene Bisimides
Published in Organic letters (15-03-2007)“…A perylene bisimide derivative bearing two phenyl substituents with chiral solubilizing alkyl chains at the imide N atoms has been synthesized, and its…”
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Origin of Reduced Bimolecular Recombination in Blends of Conjugated Polymers and Fullerenes
Published in Advanced functional materials (14-09-2013)“…Bimolecular charge carrier recombination in blends of a conjugated copolymer based on a thiophene and quinoxaline (TQ1) with a fullerene derivative…”
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Asymmetric Optical Transitions Determine the Onset of Carrier Multiplication in Lead Chalcogenide Quantum Confined and Bulk Crystals
Published in ACS nano (22-05-2018)“…Carrier multiplication is a process in which one absorbed photon excites two or more electrons. This is of great promise to increase the efficiency of…”
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A Phonon Scattering Bottleneck for Carrier Cooling in Lead Chalcogenide Nanocrystals
Published in ACS nano (27-01-2015)“…The cooling dynamics of hot charge carriers in colloidal lead chalcogenide nanocrystals is studied by hyperspectral transient absorption spectroscopy. We…”
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