Search Results - "Baek, Se‐Woong"
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Enhanced optical path and electron diffusion length enable high-efficiency perovskite tandems
Published in Nature communications (09-03-2020)“…Tandem solar cells involving metal-halide perovskite subcells offer routes to power conversion efficiencies (PCEs) that exceed the single-junction limit;…”
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Fast Near‐Infrared Photodetection Using III–V Colloidal Quantum Dots
Published in Advanced materials (Weinheim) (01-08-2022)“…Colloidal quantum dots (CQDs) are promising materials for infrared (IR) light detection due to their tunable bandgap and their solution processing; however, to…”
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Sulfurized Colloidal Quantum Dot/Tungsten Disulfide Multi‐Dimensional Heterojunction for an Efficient Self‐Powered Visible‐to‐SWIR Photodetector
Published in Advanced functional materials (18-10-2023)“…Emerging semiconducting materials show considerable promise for application in the development of next‐generation optoelectronic devices. In particular,…”
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Mediating Colloidal Quantum Dot/Organic Semiconductor Interfaces for Efficient Hybrid Solar Cells
Published in Advanced energy materials (01-01-2022)“…Emerging semiconducting materials including colloidal quantum dots (CQDs) and organic molecules have unique photovoltaic properties, and their hybridization…”
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5
A Tuned Alternating D–A Copolymer Hole‐Transport Layer Enables Colloidal Quantum Dot Solar Cells with Superior Fill Factor and Efficiency
Published in Advanced materials (Weinheim) (01-12-2020)“…The need for optoelectronic and chemical compatibility between the layers in colloidal quantum dot (CQD) photovoltaic devices remains a bottleneck in further…”
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Facet‐Oriented Coupling Enables Fast and Sensitive Colloidal Quantum Dot Photodetectors
Published in Advanced materials (Weinheim) (01-08-2021)“…Charge carrier transport in colloidal quantum dot (CQD) solids is strongly influenced by coupling among CQDs. The shape of as‐synthesized CQDs results in…”
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Highly Efficient Top‐Emitting Infrared‐to‐Visible Up‐Conversion Device Enabled by Microcavity Effect
Published in Advanced functional materials (01-05-2023)“…Infrared (IR)‐to‐visible up‐conversion device allows a low‐cost, pixel‐free IR imaging over the conventional expensive compound semiconductor‐based IR image…”
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Cascade surface modification of colloidal quantum dot inks enables efficient bulk homojunction photovoltaics
Published in Nature communications (03-01-2020)“…Control over carrier type and doping levels in semiconductor materials is key for optoelectronic applications. In colloidal quantum dots (CQDs), these…”
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9
Metal–Organic Frameworks Mediate Cu Coordination for Selective CO2 Electroreduction
Published in Journal of the American Chemical Society (12-09-2018)“…The electrochemical carbon dioxide reduction reaction (CO2RR) produces diverse chemical species. Cu clusters with a judiciously controlled surface coordination…”
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10
A Chemically Orthogonal Hole Transport Layer for Efficient Colloidal Quantum Dot Solar Cells
Published in Advanced materials (Weinheim) (01-04-2020)“…Colloidal quantum dots (CQDs) are of interest in light of their solution‐processing and bandgap tuning. Advances in the performance of CQD optoelectronic…”
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Nanostructured Back Reflectors for Efficient Colloidal Quantum‐Dot Infrared Optoelectronics
Published in Advanced materials (Weinheim) (01-08-2019)“…Colloidal quantum dots (CQDs) can be used to extend the response of solar cells, enabling the utilization of solar power that lies to the red of the bandgap of…”
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12
Au@Ag Core–Shell Nanocubes for Efficient Plasmonic Light Scattering Effect in Low Bandgap Organic Solar Cells
Published in ACS nano (22-04-2014)“…In this report, we propose a metal–metal core–shell nanocube (NC) as an advanced plasmonic material for highly efficient organic solar cells (OSCs). We covered…”
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Stabilizing Surface Passivation Enables Stable Operation of Colloidal Quantum Dot Photovoltaic Devices at Maximum Power Point in an Air Ambient
Published in Advanced materials (Weinheim) (01-02-2020)“…Colloidal quantum dots (CQDs) are promising materials for photovoltaic (PV) applications owing to their size‐tunable bandgap and solution processing. However,…”
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Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics
Published in Advanced energy materials (01-02-2024)“…Solution‐processed ternary‐compound semiconductor AgBiS2 colloidal quantum dots (CQDs) are promising light‐absorbing materials owing to their nontoxicity and…”
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15
Butylamine‐Catalyzed Synthesis of Nanocrystal Inks Enables Efficient Infrared CQD Solar Cells
Published in Advanced materials (Weinheim) (01-11-2018)“…The best‐performing colloidal‐quantum‐dot (CQD) photovoltaic devices suffer from charge recombination within the quasi‐neutral region near the back…”
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Plasmonic Forward Scattering Effect in Organic Solar Cells: A Powerful Optical Engineering Method
Published in Scientific reports (25-04-2013)“…In this report, plasmonic effects in organic photovoltaic cells (OPVs) are systematically analyzed using size-controlled silver nanoparticles (AgNPs, diameter:…”
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Colloidal InAs Quantum Dot‐Based Infrared Optoelectronics Enabled by Universal Dual‐Ligand Passivation
Published in Advanced science (01-04-2024)“…Solution‐processed low‐bandgap semiconductors are crucial to next‐generation infrared (IR) detection for various applications, such as autonomous driving,…”
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Activated Electron‐Transport Layers for Infrared Quantum Dot Optoelectronics
Published in Advanced materials (Weinheim) (19-07-2018)“…Photovoltaic (PV) materials such as perovskites and silicon are generally unabsorptive at wavelengths longer than 1100 nm, leaving a significant portion of the…”
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Orthogonal colloidal quantum dot inks enable efficient multilayer optoelectronic devices
Published in Nature communications (23-09-2020)“…Surface ligands enable control over the dispersibility of colloidal quantum dots (CQDs) via steric and electrostatic stabilization. Today’s device-grade CQD…”
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P‐Type Colloidal InSb Quantum Dot Ink Enables III–V Group Bulk‐Heterojunction Shortwave Infrared (SWIR) Photodetector
Published in Advanced optical materials (01-06-2024)“…Infrared (IR) optoelectronics have become important owing to their various applications, such as recognition, autonomous driving, and quantum communications…”
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