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Substantial enhancement of nonlinear high-order harmonics generation based on Fano-resonant nanostructures has received growing interest due to their promising potential for developing integrated and advanced next-generation nanophotonic…

光学 · 物理学 2018-08-01 Arash Ahmadivand , Burak Gerislioglu , Nezih Pala

To enhance the activity of photocatalysts for hydrogen production and CO2 conversion, noble metal cocatalysts as electron traps and/or acceptors such as platinum or gold are usually utilized. This study hypothesizes that mixing elements…

Nonlinear optics at the nanoscale has emerged as a sought-after platform for sensing and imaging applications. The development of these materials is having an impact on fields that include advanced information technology, signal processing…

光学 · 物理学 2024-12-24 Rana Faryad Ali , Byron D. Gates

We present a simple but highly efficient source of polarization-entangled photons based on spontaneous parametric down-conversion (SPDC) in bulk periodically poled potassium titanyl phosphate crystals (PPKTP) pumped by a 405 nm laser diode.…

Manganese-doped zinc sulfide nanocrystalline thin films were synthesized using a low-temperature chemical bath deposition and deposited on glass substrates for controlled durations using triethanolamine (TEA) as a complexing and capping…

材料科学 · 物理学 2025-11-25 Himal Pokhrel , Urvashi Verma

Atomically flat, epitaxial, and stoichiometric thin films of the electronically phase separated compound (La$_{0.5}$Pr$_{0.5}$)$_{0.67}$Ca$_{0.33}$MnO$_{3}$ were grown on as-received and treated NdGaO$_{3}$ substrates by fine tuning of…

材料科学 · 物理学 2011-09-16 Hyoungjeen Jeen , Rafiya Javed , Amlan Biswas

Data for inelastic processes due to hydrogen atom collisions with manganese and titanium are needed for accurate modeling of the corresponding spectra in late-type stars. In this work excitation and charge transfer in low-energy Mn+H and…

太阳与恒星天体物理 · 物理学 2020-05-13 Jon Grumer , Paul S. Barklem

We study the structural and magnetic properties of the MnBi inter-metallic compound. The LTP (Low Temperature Phase) MnBi compound is successfully synthesized in single step by vacuum encapsulation technique and rapid quenching from phase…

Recent rapid progress in efficiencies for solar water splitting by photoelectrochemical devices has enhanced its prospects to enable storable renewable energy. Efficient solar fuel generators all use tandem photoelectrode structures, and…

Hybridisation is a powerful strategy towards the next generation of multifunctional materials for environmental and sustainable energy applications. Here, we report a new inorganic nanocarbon hybrid material prepared with atomically…

材料科学 · 物理学 2019-02-13 A. Moya , N. Kemnade , M. R. Osorio , A. Cherevan , D. Granados , D. Eder , J. J. Vilatela

Titanium dioxide (TiO2) nanocrystals were prepared by wet chemical method and characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), Raman scattering (RS) and photoluminescence (PL). The X-ray diffraction shows…

介观与纳米尺度物理 · 物理学 2009-04-16 S. K. Gupta , Rucha Desai , P. K. Jha , S. P. Sahoo , D. Kirin

Close inspection of the pre-edge in oxygen near-edge x-ray absorption fine structure spectra of single step, gas phase synthesized titanium oxynitride photocatalysts with 20 nm particle size reveals an additional eg resonance in the VB that…

Achieving both broad solar-spectrum absorption and strong redox capability is critical for semiconductor photocatalysts in environmental remediation and energy conversion. Herein, an S-scheme heterojunction photocatalyst is constructed by…

材料科学 · 物理学 2026-03-31 Xiaoyi Zhou , Min Zhang , Qiushi Wang , Shiwen Du , Xuedong Jing , Zhenyi Zhang

Titanium based-perovskites have got surprising attraction due to their environmentfriendly photocatalysts behavior. The Rietveld refinement of X-ray diffraction (XRD) pattern authenticates the orthorhombic Pnma structure of Pr2MgTiO6 (PMT).…

材料科学 · 物理学 2023-07-04 Moumin Rudra , T. K. Bhowmik , H. S. Tripathi , R. A. Kumar , R. Sutradhar , T. P. Sinha

Transition metal dichalcogenide (TMDC) monolayers have attracted much attention due to their strong light absorption and excellent electronic properties. These advantages make this type of two-dimensional crystal a promising one for…

The appearance of segregated wurtzite Mg$_x$Zn$_{1-x}$O with low Mg content in thin films with $x>0.3$ affected by phase separation, cannot be reliably probed with crystallographic techniques owing to its embedded nanocrystalline…

材料科学 · 物理学 2017-09-15 V. Marín-Borrás , J. Ruiz-Fuertes , A. Segura. , V. Muñoz-Sanjosé

The efforts in the optimization of the physical and chemical properties related to the photocatalytic efficiency of TiO2 nanoparticles relies mainly on defect engineering strategies, been the structural and the doping the most common ones.…

材料科学 · 物理学 2022-03-07 M. P. Ferreira , H. B. de Carvalho

Photocatalytic nitrogen fixation provides a promising route to produce reactive nitrogen compounds at benign conditions. Titania has been reported as an active photocatalyst for reduction of dinitrogen to ammonia; however there is little…

化学物理 · 物理学 2018-02-01 Benjamin M. Comer , Andrew J. Medford

Manganese telluride (MnTe) has garnered strong interest recently for its antiferromagnetic semiconductor properties, which are promising for applications in spintronics, data storage, and quantum computing. In this study, we discovered that…

超导电性 · 物理学 2024-06-18 Zhihao He , Chen Ma , Jiannong Wang , Iam Keong Sou

In order to overcome the disadvantages of MgH2 towards its applications in on-board hydrogen storage, first principle calculations have been performed for Ti (2+, 3+, and 4+) substituted MgH2. Our calculated enthalpy of formation and H site…

材料科学 · 物理学 2019-09-04 R Varunaa , S Kiruthika , P Ravindran