Articles with "diffusion length" as a keyword



Simultaneous High Charge‐Spin Conversion Efficiency and Large Spin Diffusion Length in Altermagnetic RuO2

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202313332

Abstract: Efficient spin sources with large spin Hall angle (θSH) and long spin diffusion length (λSD) are highly desired in the application of spintronic devices. However, due to strong spin‐orbit coupling, the two targets can hardly… read more here.

Keywords: large spin; diffusion length; ruo2; spin diffusion ... See more keywords

Homogeneously Blended Donor and Acceptor AgBiS2 Nanocrystal Inks Enable High‐Performance Eco‐Friendly Solar Cells with Enhanced Carrier Diffusion Length

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Published in 2025 at "Advanced Energy Materials"

DOI: 10.1002/aenm.202404552

Abstract: Colloidal semiconductor nanocrystals (NCs) have garnered significant attention as promising photovoltaic materials due to their tunable optoelectronic properties enabled by surface chemistry. Among them, AgBiS2 NCs stand out as an attractive candidate for solar cell… read more here.

Keywords: diffusion length; diffusion; enhanced carrier; donor acceptor ... See more keywords

First measurements of radon-220 diffusion in mice tumors, towards treatment planning in diffusing alpha-emitters radiation therapy.

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Published in 2024 at "Medical physics"

DOI: 10.1002/mp.17020

Abstract: BACKGROUND Diffusing alpha-emitters radiation therapy ("Alpha-DaRT") is a new method for treating solid tumors with alpha particles, relying on the release of the short-lived alpha-emitting daughter atoms of radium-224 from interstitial sources inserted into the… read more here.

Keywords: radon 220; vivo tumors; diffusion length; source ... See more keywords

Measuring the Minority-Carrier Diffusion Length of n-Type In0.53Ga0.47As Epilayers Using Surface Photovoltage

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Published in 2017 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-016-5124-y

Abstract: We report measurements of the minority-carrier diffusion length of n-type In0.53Ga0.47As epilayer samples using the surface photovoltage (SPV) method, and the minority-carrier lifetime of the same samples obtained by the microwave photoconductivity decay (μ-PCD) method.… read more here.

Keywords: diffusion length; minority; minority carrier; carrier diffusion ... See more keywords

A Cathodoluminescence Study on the Diffusion Length in AlGaInP/InGaP/AlInP Solar Cell Heterostructures

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Published in 2020 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-020-08176-w

Abstract: The diffusion length of minority carriers in a p-doped InGaP layer is derived from the cathodoluminescence (CL) intensity profiles. Two procedures are used. First, the CL profile is recorded along a line crossing the intersection… read more here.

Keywords: length; ingap; cathodoluminescence study; diffusion length ... See more keywords

Boron subphthalocyanine chloride crystalline thin film with a long range exciton diffusion length grown assisted by negative surface charges

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Published in 2017 at "Thin Solid Films"

DOI: 10.1016/j.tsf.2017.07.001

Abstract: Abstract Boron subphthalocyanine chloride (SubPc) crystalline thin film has been fabricated under the help of negative surface charges and its growth mechanism is discussed as well. This thin film is composed of triangular grains and… read more here.

Keywords: exciton diffusion; thin film; crystalline thin; diffusion length ... See more keywords

Measuring the minority carrier diffusion length in n-GaN using bulk STEM EBIC

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Published in 2018 at "Microscopy and Microanalysis"

DOI: 10.1017/s1431927618009698

Abstract: Gallium nitride is currently being investigated for demanding applications such as high-temperature and high-power electronics as well as space-based or other high radiation exposure applications. It has a wide bandgap and is more resistant than… read more here.

Keywords: diffusion length; minority; minority carrier; carrier diffusion ... See more keywords

Fine Tuning the Diffusion Length in Hierarchical ZSM-5 To Maximize the Yield of Propylene in Catalytic Cracking of Hydrocarbons

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Published in 2018 at "ACS Sustainable Chemistry & Engineering"

DOI: 10.1021/acssuschemeng.8b04441

Abstract: Direct synthesis of hierarchical zeolites using macromolecules as soft templates can yield zeolite particles with precisely controlled, ultrashort diffusion lengths, leading to the ability to tune ... read more here.

Keywords: fine tuning; diffusion; length hierarchical; diffusion length ... See more keywords
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Enhanced optical path and electron diffusion length enable high-efficiency perovskite tandems

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Published in 2020 at "Nature Communications"

DOI: 10.1038/s41467-020-15077-3

Abstract: Tandem solar cells involving metal-halide perovskite subcells offer routes to power conversion efficiencies (PCEs) that exceed the single-junction limit; however, reported PCE values for tandems have so far lain below their potential due to inefficient… read more here.

Keywords: length; diffusion length; efficiency; electron diffusion ... See more keywords
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2D matrix engineering for homogeneous quantum dot coupling in photovoltaic solids

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Published in 2018 at "Nature Nanotechnology"

DOI: 10.1038/s41565-018-0117-z

Abstract: Colloidal quantum dots (CQDs) are promising photovoltaic (PV) materials because of their widely tunable absorption spectrum controlled by nanocrystal size1,2. Their bandgap tunability allows not only the optimization of single-junction cells, but also the fabrication… read more here.

Keywords: engineering; quantum; matrix engineering; engineering homogeneous ... See more keywords

Triplet excitons: improving exciton diffusion length for enhanced organic photovoltaics

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Published in 2019 at "Journal of Materials Chemistry A"

DOI: 10.1039/c8ta10037c

Abstract: Organic materials containing heavy atoms have been used in photovoltaics to overcome a fundamental limitation: short exciton diffusion length (LD). We highlight studies showing increased LD in solar cells using triplet-generating materials and tackle challenges… read more here.

Keywords: diffusion length; triplet excitons; exciton diffusion;