Articles with "charge generation" as a keyword



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Identification of the Origin of Ultralow Dark Currents in Organic Photodiodes

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202209598

Abstract: Organic bulk heterojunction photodiodes (OPDs) attract attention for sensing and imaging. Their detectivity is typically limited by a substantial reverse bias dark current density (Jd). Recently, using thermal admittance or spectral photocurrent measurements, Jd has… read more here.

Keywords: gap states; origin ultralow; ultralow dark; charge generation ... See more keywords
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Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency

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Published in 2023 at "Advanced Materials"

DOI: 10.1002/adma.202300400

Abstract: The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due to the dilution effect. While the compromise between the charge generation and recombination remains a challenge.… read more here.

Keywords: charge generation; generation recombination; strategy; btp ... See more keywords

Highly-efficient tandem organic light-emitting device employing bis-4,6-(3,5-di-3-pyridylphenyl)-2-methylpyrimi-dine doped with cesium azide in charge generation unit

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Published in 2018 at "Organic Electronics"

DOI: 10.1016/j.orgel.2017.11.022

Abstract: Abstract In this research, we have investigated the charge generation and electron injection processes in charge generation unit (CGU) consisting of CsN3-doped Bis-4, 6-(3, 5-di-3-pyridylphenyl)-2-methylpyrimi-dine (CsN3:B3PYMPM)/Al/1, 4, 5, 8, 9, 11-Hexaazatriphenylene-hexacarbonitrile (HAT-CN). By employing this… read more here.

Keywords: generation unit; charge generation; device;
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Molecular Insight into Efficient Charge Generation in Low-Driving-Force Nonfullerene Organic Solar Cells.

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Published in 2022 at "Accounts of chemical research"

DOI: 10.1021/acs.accounts.1c00742

Abstract: ConspectusFor organic solar cells (OSCs), charge generation at the donor/acceptor interfaces is regarded as a two-step process: driven by the interfacial energy offsets, the excitons produced by light absorption are first dissociated into the charge-transfer… read more here.

Keywords: charge generation; energy; charge; driving force ... See more keywords
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Solution-Processed Conducting Polymer/Metal Oxide Charge Generation Layer: Preparation, Electrical Properties, and Charge Generation Mechanism

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.6b11838

Abstract: Conducting polymer/metal oxide heterostructures have been commonly used in solution-processed tandem organic optoelectronic devices as charge generation layer (CGL) or charge recombination layer. However, the underlying working mechanism remains unexplored. We optimize the preparation of… read more here.

Keywords: generation; solution processed; charge generation; polymer ... See more keywords
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Exciton and Charge Generation in PC60BM Thin Films

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b03962

Abstract: Transient absorption spectroscopy is employed to contrast the photophysics of [6,6]-phenyl C61 butyric acid methyl ester (PC60BM) dispersed in a polystyrene matrix and as a neat film. For the dispersed PC60BM:polystyrene film, singlet excitons are… read more here.

Keywords: pc60bm; generation pc60bm; generation; exciton charge ... See more keywords
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Solution-Processed Metal-Oxide p-n Charge Generation Junction for High-Performance Inverted Quantum-Dot Light-Emitting Diodes.

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Published in 2017 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.7b14584

Abstract: We report solution-processed metal-oxide p-n junction, Li-doped CuO (Li:CuO) and Li-doped ZnO (Li:ZnO), as a charge generation junction (CGJ) in quantum-dot light-emitting diode (QLED) at reverse bias. Efficient charge generation is demonstrated in a stack… read more here.

Keywords: cuo; zno; charge; junction ... See more keywords
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Anticorrelated photoluminescence and free charge generation proves field-assisted exciton dissociation in low-offset PM6:Y5 organic solar cells

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Published in 2023 at "APL Materials"

DOI: 10.1063/5.0151580

Abstract: Understanding the origin of inefficient photocurrent generation in organic solar cells with low energy offset remains key to realizing high-performance donor-acceptor systems. Here, we probe the origin of field-dependent free-charge generation and photoluminescence in non-fullereneacceptor… read more here.

Keywords: charge generation; generation; offset; free charge ... See more keywords
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Prevention of Electrostatic Charge Generation in Filtration of Low-Conductivity Oils by Surface Modification of Modern Filter Media

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Published in 2020 at "Tribology Transactions"

DOI: 10.1080/10402004.2019.1690084

Abstract: Abstract The electrostatic charging behavior of filter elements operating in various hydraulic and lubricating fluids has been re-examined from the perspective of fundamental material properties of the two materials participating in the event. In contrast… read more here.

Keywords: electrostatic charge; filtration; modern filter; filter ... See more keywords
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Validation of a Textile Material’s Electrostatic Characterization Device for Different Parameters and Their Effect on the Electrostatic Charge Generation

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Published in 2022 at "Materials"

DOI: 10.3390/ma15165716

Abstract: This research aims to validate an electrostatics characterization device to better understand the process of static charge generation in textile materials and to see how different factors affect it. This electrostatic device offers a variety… read more here.

Keywords: effect; charge generation; charge; generation ... See more keywords