98%
921
2 minutes
20
The optical properties of quantum dots (QDs) in modified Möbius squared (MMS) potential are studied. To obtain the energy expressions and the wave functions, we solved the Schrödinger equation by using Nikiforov-Uvarov (NU) method. We investigated the linear, third-order nonlinear and total absorption coefficients (AC) and refractive index changes (RIC) using the density matrix. The numerical results show that the structure parameters and optical intensity have a strong influence on AC and RIC.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9433689 | PMC |
http://dx.doi.org/10.1016/j.heliyon.2022.e10387 | DOI Listing |
Chem Commun (Camb)
September 2025
College of Chemistry, Pingyuan Laboratory, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R. China.
A visible-light-catalyzed three-component cyclization reaction of 2-vinylarylamines with CFSONa and arylaldehydes is developed to build a series of 3-(2,2,2-trifluoroethyl)-3-indoles. This protocol features mild reaction conditions using an 18 W blue LED as the light source at room temperature. The desired 3-indole products can be successfully transformed into valuable tetrahydroindole scaffolds through either reduction or cross-coupling reactions.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China.
Transition metal dichalcogenides (TMDs) have been extensively studied as efficient photocatalysts for water splitting. However, the utilization efficiency of photogenerated carriers remains a major limitation for their practical applications. An effective approach to address this issue is the construction of Z-scheme heterostructures.
View Article and Find Full Text PDFJ Comput Chem
September 2025
Department of Electrical and Electronic Engineering, Begum Rokeya University, Rangpur, Bangladesh.
This study presents a comprehensive first-principles and device-performance investigation of alkali metal-based anti-perovskites ZBrO (Z = K, Rb, Cs, and Fr) for advanced optoelectronic and photovoltaic applications. Using density functional theory (DFT) with GGA-PBE and mGGA-rSCAN functionals, we analyzed the structural, electronic, optical, mechanical, phonon, population, and thermoelectric properties of these compounds. All ZBrO materials exhibit direct band gaps and strong optical absorption in the visible-UV spectrum.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, via A. Moro 2, 53100 Siena, Italy.
Molecules with an inverted singlet-triplet gap (Δ = - < 0) hold potential for optoelectronic applications as OLEDs and photocatalysis. Despite growing interest, no single-molecule emission from a chiral dye with an inverted gap has been reported, and only one case has shown such emission from supramolecular aggregates. Here, we present the first circularly polarized light emission (CPL) from a chiral molecule exhibiting an inverted singlet-triplet gap.
View Article and Find Full Text PDFEnviron Geochem Health
September 2025
Department of Chemistry, Government Arts College(A), Salem, Tamil Nadu, 636007, India.
A CoO/AgMoO/CeOternary nanocomposites photocatalyst was successfully synthesized through a straightforward ethanol-assisted chemical method. Comprehensive characterization of its structural and optical properties was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-DRS), and photoluminescence (PL) analysis. XRD analysis confirmed the presence of CoO, AgMoO and CeO in the ternary composite sample.
View Article and Find Full Text PDF