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Photoscience articles published in the last 6 months

27 items - Showing page 1 of 2
Open Access Paper

Aminoguanidine-based bioactive proligand as AIEE probe for anticancer and anticovid studies

An anticancer proligand, with AIEE features, demonstrates exceptional binding efficiencies with DNA and SARS-CoV-2 and offers as a promising bioprobe.

Graphical abstract: Aminoguanidine-based bioactive proligand as AIEE probe for anticancer and anticovid studies
Open Access Paper

Enhancing thermometric efficiency: a wavelength excitation analysis in LiSrGdW3O12:Tb3+ for superior single band ratiometric (SBR) thermometry

This study delves into the Single Band Ratiometric (SBR) method for luminescence thermometry, specifically employing Tb3+-doped LiSrGdW3O12 (LSGW) as a novel phosphor.

Graphical abstract: Enhancing thermometric efficiency: a wavelength excitation analysis in LiSrGdW3O12:Tb3+ for superior single band ratiometric (SBR) thermometry
Open Access Paper

Syntheses, structural, photophysical and theoretical studies of heteroleptic cycloplatinated guanidinate(1−) complexes bearing acetylacetonate and picolinate ancillary ligands

[Pt(TAG-κCN)(acac)] (TAG = triarylguanidinate(1−) ligands) were isolated and fully characterized. These complexes are bluish green light emitters and the origin of absorption/emission in selected complexes were studied by TD-DFT calculations.

Graphical abstract: Syntheses, structural, photophysical and theoretical studies of heteroleptic cycloplatinated guanidinate(1−) complexes bearing acetylacetonate and picolinate ancillary ligands
Open Access Paper

Dual-functional nano-photosensitizers: Eosin-Y decorated gold nanorods for plasmon-enhanced fluorescence and singlet oxygen generation

Enhancement factors of 110 and 18 for metal-enhanced fluorescence and metal-enhanced SOG, respectively, are obtained from polymer coated gold nanorod cores adsorbed with Eosin Y.

Graphical abstract: Dual-functional nano-photosensitizers: Eosin-Y decorated gold nanorods for plasmon-enhanced fluorescence and singlet oxygen generation
Open Access Paper

Electric-field modulated energy transfer in phosphorescent material- and fluorescent material-codoped polymer light-emitting diodes

In this study, we find electric-field modulated energy transfer in phosphorescent material- and fluorescent material-codoped polymer that has never been reported.

Graphical abstract: Electric-field modulated energy transfer in phosphorescent material- and fluorescent material-codoped polymer light-emitting diodes
Open Access Paper

Highly emissive blue graphene quantum dots with excitation-independent emission via ultrafast liquid-phase photoreduction

Graphene oxide quantum dots (GOQDs) are promising candidates for biomedical applications since they have lower toxicity and higher biocompatibility than traditional semiconductor quantum dots.

Graphical abstract: Highly emissive blue graphene quantum dots with excitation-independent emission via ultrafast liquid-phase photoreduction
Open Access Paper

Revealing the high efficiency of fluorescence quenching of rhodamine B by triangular silver nanodisks due to the inner filter effect mechanism

Performing effective fluorescence quenching based on a metal nanomaterial is essential to construct fluorescence sensors.

Graphical abstract: Revealing the high efficiency of fluorescence quenching of rhodamine B by triangular silver nanodisks due to the inner filter effect mechanism
Open Access Paper

Increase of OH radical yields due to the decomposition of hydrogen peroxide by gold nanoparticles under X-ray irradiation

We elucidate the decomposition mechanism of hydrogen peroxide, which is formed by water radiolysis, by gold nanoparticles (GNPs) under X-ray irradiation.

Graphical abstract: Increase of OH radical yields due to the decomposition of hydrogen peroxide by gold nanoparticles under X-ray irradiation
Open Access Paper

The dual-model up/down-conversion green luminescence of NaSrGd(MoO4)3: Er3+ and its application for temperature sensing

Intense green up/down conversion emission and high-sensitivity optical thermometry.

Graphical abstract: The dual-model up/down-conversion green luminescence of NaSrGd(MoO4)3: Er3+ and its application for temperature sensing
Open Access Paper

Energy transfer for Ce3+ → Tb3+ → Sm3+ induced bright white emission in single-phase CaLa4(SiO4)3O:Ce3+, Tb3+, Sm3+ phosphors and their application in white-light-emitting diodes

The emergence of phosphor-converted white-light-emitting diodes has crucial significance in the sustainable development of energy; hence, the evolution of phosphors with eminent luminescence and high stability is imperative.

Graphical abstract: Energy transfer for Ce3+ → Tb3+ → Sm3+ induced bright white emission in single-phase CaLa4(SiO4)3O:Ce3+, Tb3+, Sm3+ phosphors and their application in white-light-emitting diodes
Open Access Paper

Symmetric dicyanobenzothiadiazole (DCBT) dyes with a 1.5 eV excited state reduction potential range

Dicyanobenzothiadiazole based dyes have shown exceptional tunability of oxidizing strength and absorption energy. The photophysical thermodynamic and kinetic properties are studied with desirable properties shown for future use in photocatalysis.

Graphical abstract: Symmetric dicyanobenzothiadiazole (DCBT) dyes with a 1.5 eV excited state reduction potential range
Open Access Paper

Efficient orange and red thermally activated delayed fluorescence materials based on 1,8-naphthalimide derivatives

Two acylimine-based molecules were synthesized, showing excellent TADF. Used in OLEDs, they emitted orange and red light with maximum quantum efficiencies of 11.3% and 7.6%, respectively.

Graphical abstract: Efficient orange and red thermally activated delayed fluorescence materials based on 1,8-naphthalimide derivatives
Open Access Paper

Side group dependent room temperature crystallization-induced phosphorescence of benzil based all organic phosphors

A systematic investigation on the effect of alkyl length on the phosphorescence performances of all organic room-temperature alkoxy substituted benzil phosphors.

Graphical abstract: Side group dependent room temperature crystallization-induced phosphorescence of benzil based all organic phosphors
Open Access Paper

Solvatochromism of new tetraphenylethene luminogens: integration of aggregation-induced emission and conjugation-induced rigidity for emitting strongly in both solid and solution state

We synthesized and characterized TPE analogs, revealing AIE and solvatochromism. Quantum calculations confirmed diverse behavior due to molecular packing and rigidity. The compounds showed biocompatibility, suggesting potential for cell imaging.

Graphical abstract: Solvatochromism of new tetraphenylethene luminogens: integration of aggregation-induced emission and conjugation-induced rigidity for emitting strongly in both solid and solution state
Open Access Paper

New insights on the optical properties and upconversion fluorescence of Er-doped CoAl2O4 nanocrystals

Er-doped CoAl2O4 NCs were synthesized via co-precipitation; all were crystallized in the form of a single phase with a spinel structure and Er3+ ions replaced Al3+ ions in the formation of the CoAl2−xErxO4 alloy structure.

Graphical abstract: New insights on the optical properties and upconversion fluorescence of Er-doped CoAl2O4 nanocrystals
Open Access Paper

Effect of the bulkiness of alkyl ligands on the excited-state dynamics of ZnO nanocrystals

The effect of molecular structures of alkyl groups of alkyl phosphonic ligands on excited-state dynamics of colloidal ZnO nanocrystals was investigated.

Graphical abstract: Effect of the bulkiness of alkyl ligands on the excited-state dynamics of ZnO nanocrystals
Open Access Paper

Two-photon excited luminescence of sulfur quantum dots for heavy metal ion detection

Spectrally-resolved third-order nonlinear optical properties of water-dispersed sulfur quantum dots were used as combined one- and two-photon active sensor for heavy metal ions detection.

Graphical abstract: Two-photon excited luminescence of sulfur quantum dots for heavy metal ion detection
Open Access Paper

Green synthesis of ethyl cinnamates under microwave irradiation: photophysical properties, cytotoxicity, and cell bioimaging

A simple and green method for the synthesis of six ethyl cinnamates was performed via Horner–Wadsworth–Emmons reaction under microwave irradiation.

Graphical abstract: Green synthesis of ethyl cinnamates under microwave irradiation: photophysical properties, cytotoxicity, and cell bioimaging
Open Access Paper

Influence of barium substitution on the physical, thermal, optical and luminescence properties of Sm3+-doped metaphosphate glasses for reddish orange light applications

Our present study focuses on examining the thermal, structural and luminescent characteristics of barium and samarium oxide additions on metaphosphate glasses. Results indicate the current glasses may be a good candidate for displaying colours or visible lasers in the red-orange spectral region.

Graphical abstract: Influence of barium substitution on the physical, thermal, optical and luminescence properties of Sm3+-doped metaphosphate glasses for reddish orange light applications
Open Access Paper

A green light emissive LaSr2AlO5:Er3+ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

The present study reveals the structural and optoelectronic characteristics of a down-converted (DC) green luminous Er3+ doped LaSr2AlO5 phosphor that was produced by employing an efficient and reliable gel-combustion process assisted with urea as a fuel.

Graphical abstract: A green light emissive LaSr2AlO5:Er3+ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability
Open Access Paper

Controlling the optical and magnetic properties of CdTeSe and Gd-doped CdTeSe alloy semiconductor nanocrystals

X-ray diffraction pattern of Gd-doped CdTeSe NCs when Gd concentration changes.

Graphical abstract: Controlling the optical and magnetic properties of CdTeSe and Gd-doped CdTeSe alloy semiconductor nanocrystals
Open Access Paper

Tailoring thermally activated delayed fluorescence emitters for efficient electrochemiluminescence with tripropylamine as coreactant

Bringing thermally activated delayed fluorescence (TADF) emitters from organic solvents to water to enable electrochemiluminescence applications.

Graphical abstract: Tailoring thermally activated delayed fluorescence emitters for efficient electrochemiluminescence with tripropylamine as coreactant
Open Access Paper

Multiple underlying images tuned by Mn-doped Zn–Cu–In–S quantum dots

In this study, ZnS capped Cu–In–S (ZCIS) quantum dots doped with Mn ions are synthesized by a thermal injection method, with luminescence covering almost the entire visible area.

Graphical abstract: Multiple underlying images tuned by Mn-doped Zn–Cu–In–S quantum dots
Open Access Paper

High-efficiency energy transfer in the strong orange-red-emitting phosphor CeO2:Sm3+, Eu3+

High-efficiency energy transfer (ET) from Sm3+ to Eu3+ leads to dominant red emission in Sm3+, Eu3+ co-doped single-phase cubic CeO2 phosphors.

Graphical abstract: High-efficiency energy transfer in the strong orange-red-emitting phosphor CeO2:Sm3+, Eu3+
Open Access Paper

The impact of aggregation of AIE and ACQ moiety-integrating material on the excited state dynamics

Introduced TPEIP, a novel fluorescent material combining AIE and ACQ properties. Increased aggregation reduces ISC and radiative transitions, providing insights into excited-state dynamics in molecular aggregates.

Graphical abstract: The impact of aggregation of AIE and ACQ moiety-integrating material on the excited state dynamics
27 items - Showing page 1 of 2

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