Articles with "self trapped" as a keyword



Defect Passivation in Air‐Stable Tin(IV)‐Halide Single Crystal for Emissive Self‐Trapped Excitons

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Published in 2021 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202108561

Abstract: Tin(IV)‐based metal halides are promising optoelectronic materials due to their robust structure and eco‐friendly nature, but these materials exhibit poor photoluminescence (PL) properties and the underlying mechanisms are still elusive. Here, a novel air‐stable hybrid… read more here.

Keywords: air stable; tin; self trapped; defect passivation ... See more keywords

Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202517876

Abstract: Gallium oxide (Ga2O3) is a promising ultrawide bandgap semiconductor for next‐generation power electronics and optoelectronic devices. Here, temperature‐dependent and polarization‐resolved photoluminescence excitation spectroscopy data, complemented by hybrid‐functional first‐principles calculations, are presented, and a microscopic model… read more here.

Keywords: ga2o3; hole migration; luminescence; self trapped ... See more keywords

Integrated Afterglow and Self-Trapped Exciton Emissions in Hybrid Metal Halides for Anticounterfeiting Applications.

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Published in 2022 at "Advanced materials"

DOI: 10.1002/adma.202200607

Abstract: Zero-dimensional organic-inorganic hybrid metal halides (0D HMHs) are considered to be promising luminescent emitters. 0D HMHs commonly exhibit self-trapped exciton (STE) emissions originating from inorganic metal halide anion units. Exploring and utilizing the emission features… read more here.

Keywords: anticounterfeiting applications; integrated afterglow; hybrid metal; metal halides ... See more keywords

Light Emission of Self‐Trapped Excitons in Inorganic Metal Halides for Optoelectronic Applications

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202201008

Abstract: Self‐trapped excitons (STEs) have recently attracted tremendous interest due to their broadband emission, high photoluminescence quantum yield, and self‐absorption‐free properties, which enable a large range of optoelectronic applications such as lighting, displays, radiation detection, and… read more here.

Keywords: trapped excitons; self trapped; optoelectronic applications; emission ... See more keywords

Unveiling Mechanism of Temperature‐Dependent Self‐Trapped Exciton Emission in 1D Hybrid Organic–Inorganic Tin Halide for Advanced Thermography

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Published in 2024 at "Advanced Optical Materials"

DOI: 10.1002/adom.202402061

Abstract: Lead‐free hybrid metal halide phosphors/crystals showing self‐trapped exciton (STE) emission have been recently explored for thermography due to the strong temperature dependence of their photoluminescence (PL) lifetime (τ). However, realizing high‐spatial‐resolution thermography using polycrystalline powders… read more here.

Keywords: temperature; ste; emission; self trapped ... See more keywords

Pressure‐Induced Unusual Transition of Luminescence Mechanics from Self‐Trapped Exciton to Free Exciton Emission in Lead Bromide Perovskitoids

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Published in 2024 at "Advanced Optical Materials"

DOI: 10.1002/adom.202402086

Abstract: Understanding the luminescence mechanics of metal halide perovskites is the key to uncovering the detailed pathways responsible for remarkable photophysical properties and engineering materials with enhanced optoelectronic properties. In this work, high pressure is employed… read more here.

Keywords: exciton; trapped exciton; mechanics; emission ... See more keywords

Boosting the Self‐Trapped Exciton Emission in Alloyed Cs2(Ag/Na)InCl6 Double Perovskite via Cu+ Doping

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Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202103724

Abstract: Fundamental understanding of the effect of doping on the optical properties of 3D double perovskites (DPs) especially the dynamics of self‐trapped excitons (STEs) is of vital importance for their optoelectronic applications. Herein, a unique strategy… read more here.

Keywords: emission; emission alloyed; cs2 incl6; via doping ... See more keywords

Self-Trapped Excitons in Carbon Quantum Dots with Large NIR-II Photo-Thermoelectric Catalysis Induce Pyroptosis for Cancer Therapy.

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Published in 2025 at "Advanced science"

DOI: 10.1002/advs.202514249

Abstract: Pyroptosis, an immunogenic cell death mechanism triggered by Gasdermin family proteins, represents a transformative frontier in tumor immunotherapy. While carbon quantum dots (CQDs) have emerged as pyroptosis‐triggering agents, their efficacy in NIR‐II light‐mediated therapy remains… read more here.

Keywords: photo thermoelectric; carbon quantum; pyroptosis; trapped excitons ... See more keywords

Correlating Symmetries of Low-Frequency Vibrations and Self-Trapped Excitons in Layered Perovskites for Light Emission with Different Colors.

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Published in 2022 at "Small"

DOI: 10.1002/smll.202106759

Abstract: The soft hybrid organic-inorganic structure of two-dimensional layered perovskites (2DLPs) enables broadband emission at room temperature from a single material, which makes 2DLPs promising sources for solid-state white lighting, yet with low efficiency. The underlying… read more here.

Keywords: self trapped; layered perovskites; emission; correlating symmetries ... See more keywords

Pressure Regulating Self-Trapped States toward Remarkable Emission Enhancement of Zero-Dimensional Lead-Free Halides Nanocrystals.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202300455

Abstract: Copper(I)-based halides have recently attracted increasing attention as a substitute for lead halides, owing to their nontoxicity, abundance, unique structure, and optoelectric properties. However, exploring an effective strategy to further improve their optical activities and… read more here.

Keywords: self trapped; trapped states; emission; pressure ... See more keywords
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Self-trapped excitons in two-dimensional perovskites

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Published in 2020 at "Frontiers of Optoelectronics"

DOI: 10.1007/s12200-020-1051-x

Abstract: With strong electron-phonon coupling, the self-trapped excitons are usually formed in materials, which leads to the local lattice distortion and localized excitons. The self-trapping strongly depends on the dimensionality of the materials. In the three-dimensional… read more here.

Keywords: self trapping; potential barrier; two dimensional; self trapped ... See more keywords