Articles with "narrow bandgap" as a keyword



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High-Performance Photothermal Conversion of Narrow-Bandgap Ti2 O3 Nanoparticles.

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Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201603730

Abstract: Ti2 O3 nanoparticles with high performance of photothermal conversion are demonstrated for the first time. Benefiting from the nanosize and narrow-bandgap features, the Ti2 O3 nanoparticles possess strong light absorption and nearly 100% internal solar-thermal… read more here.

Keywords: photothermal conversion; ti2 nanoparticles; conversion; performance photothermal ... See more keywords
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A Game Changer: A Multifunctional Perovskite Exhibiting Giant Ferroelectricity and Narrow Bandgap with Potential Application in a Truly Monolithic Multienergy Harvester or Sensor.

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Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201700767

Abstract: An ABO3 -type perovskite solid-solution, (K0.5 Na0.5 )NbO3 (KNN) doped with 2 mol% Ba(Ni0.5 Nb0.5 )O3-δ (BNNO) is reported. Such a composition yields a much narrower bandgap (≈1.6 eV) compared to the parental composition-pure KNN-and… read more here.

Keywords: bandgap; game changer; energy; narrow bandgap ... See more keywords
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A Narrow-Bandgap n-Type Polymer with an Acceptor-Acceptor Backbone Enabling Efficient All-Polymer Solar Cells.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.202004183

Abstract: Narrow-bandgap polymer semiconductors are essential for advancing the development of organic solar cells. Here, a new narrow-bandgap polymer acceptor L14, featuring an acceptor-acceptor (A-A) type backbone, is synthesized by copolymerizing a dibrominated fused-ring electron acceptor… read more here.

Keywords: polymer; type; acceptor; narrow bandgap ... See more keywords
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Regioregular Narrow-Bandgap n-Type Polymers with High Electron Mobility Enabling Highly Efficient All-Polymer Solar Cells.

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Published in 2021 at "Advanced materials"

DOI: 10.1002/adma.202102635

Abstract: Narrow-bandgap n-type polymers with high electron mobility are urgently demanded for the development of all-polymer solar cells (all-PSCs). Here, two regioregular narrow-bandgap polymer acceptors, L15 and MBTI, with two electron-deficient segments are synthesized by copolymerizing… read more here.

Keywords: bandgap; polymer; high electron; narrow bandgap ... See more keywords
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Unraveling Device Physics of Dilute‐Donor Narrow‐Bandgap Organic Solar Cells with Highly Transparent Active Layers

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202203796

Abstract: The charge generation–recombination dynamics in three narrow‐bandgap near‐IR absorbing nonfullerene (NFA) based organic photovoltaic (OPV) systems with varied donor concentrations of 40%, 30%, and 20% are investigated. The dilution of the polymer donor with visible‐range… read more here.

Keywords: physics; transparent active; narrow bandgap; highly transparent ... See more keywords
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Chlorinated Narrow Bandgap Polymer Suppresses Non-Radiative Recombination Energy Loss Enabling Perylene Diimides-Based Organic Solar Cells Exceeding 10% Efficiency.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202208217

Abstract: The scarcity of narrow bandgap donor polymers matched with perylene diimides (PDI)-based nonfullerene acceptors (NFAs) hinders improvement of the power conversion efficiency (PCE) value of organic solar cells (OSCs). Here, it is reported that a… read more here.

Keywords: energy loss; efficiency; narrow bandgap;
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TiO2 with super narrow bandgap achieved in one-step single-mode magnetic microwave induced plasma treatment

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Published in 2020 at "Scripta Materialia"

DOI: 10.1016/j.scriptamat.2019.10.021

Abstract: Abstract TiO2 with super narrow bandgap (1.1 eV∼) are successfully synthesized via a facile and novel one-step single-mode magnetic microwave induced plasma treatment. The selectively surface Ti3+-doping on obtained TiO2 as trapping centers which significantly restrain… read more here.

Keywords: step single; one step; single mode; tio2 super ... See more keywords
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High Efficiency (15.8%) All-Polymer Solar Cells Enabled by a Regioregular Narrow Bandgap Polymer Acceptor.

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Published in 2021 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.0c12527

Abstract: Despite the significant progresses made in all-polymer solar cells (all-PSCs) recently, the relatively low short-circuit current density (Jsc) and large energy loss are still quite difficult to overcome for further development. To address these challenges,… read more here.

Keywords: polymer; polymer solar; narrow bandgap; bandgap polymer ... See more keywords
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High performance bulk photovoltaics in narrow-bandgap centrosymmetric ultrathin films

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Published in 2020 at "Materials horizons"

DOI: 10.1039/c9mh01744e

Abstract: In conventional bulk photovoltaics (BPVs), it is difficult to acquire both intensive photocurrent and large photovoltage output, which greatly limits the practical application. Here, we report a new strategy that can significantly increase photocurrent by… read more here.

Keywords: bandgap; bulk photovoltaics; bandgap centrosymmetric; centrosymmetric ultrathin ... See more keywords
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Development of a quantum chemical descriptor expressing aromatic/quinoidal character for designing narrow-bandgap π-conjugated polymers

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Published in 2019 at "Polymer Chemistry"

DOI: 10.1039/c9py00987f

Abstract: Guidance for designing narrow-bandgap copolymers was established by developing a chemical descriptor (QSE) that considers only the monomer and linking sites. read more here.

Keywords: narrow bandgap; chemical descriptor; development quantum; designing narrow ... See more keywords
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Broadband organic photodetectors exhibiting photomultiplication with a narrow bandgap non-fullerene acceptor as an electron trap

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Published in 2020 at "Journal of Materials Chemistry C"

DOI: 10.1039/d0tc01793k

Abstract: Broadband organic photodetectors with photomultiplication (PM-OPDs) can be realized in the device structures of ITO/PEDOT:PSS/active layers/Al, where the active layers contain one broad bandgap polymer PDBD-T and a much lower amount of the ultra-narrow bandgap… read more here.

Keywords: bandgap; organic photodetectors; broadband organic; active layers ... See more keywords