Depuis quelques années, les céramiques transparentes sont largement étudiées pour leurs propriétés optiques et mécaniques et leurs applications dans les domaines de la photonique (laser de puissance, …) ou militaire (radôme, fenêtre, …). Par rapport aux monocristaux dont elles reproduisent les caractéristiques techniques, leur synthèse est facilité...
Published in Optical and Quantum Electronics
Past few decades, light absorbing materials based on CuInGaSe2 and CdTe have been used for fabrication of thin film solar cells. But main issues arising from these absorbers are the limited availability and toxicity of some of their constituents, viz. In, Cd, and Te. At present, light absorbing materials based on Cu2ZnSnS4 (CZTS) is a best alternat...
Published in Optical and Quantum Electronics
The pure STiO3 has been experimentally demonstrated to catalyze H2 production using water splitting, but the reaction can only be driven by Ultraviolet (UV) radiation due to the large band gap of SrTiO3. This motivated us to search efficient strategy to tune its band gap, so that it can function in the visible region of the solar spectrum. In this ...
Published in Nanoscale Research Letters
The development of resistance against antibiotics used to treat bacterial infections along with the prevalence of medication residues presents significant public health problems globally. Antibiotic-resistant germs result in infections that are difficult or impossible to treat. Decreasing antibiotic effectiveness calls for rapid development of alte...
Published in Applied Physics A
Zn(1-x)NixS nanoparticles with Polyvinylpyrrolidone (PVP) are synthesized for different Ni concentration of x = 0, 0.05, 0.10, 0.15 using microwave heating by chemical route. EDS of all samples confirms presence of Zn, S and Ni without any impurities. XRD and TEM study reveals that pristine and Ni-doped ZnS samples possess cubic (Zinc Blende) struc...
Published in Nano-Micro Letters
Zinc-anode-based electrochromic devices (ZECDs) are emerging as the next-generation energy-efficient transparent electronics. We report anatase W-doped TiO2 nanocrystals (NCs) as a Zn2+ active electrochromic material. It demonstrates that the W doping in TiO2 highly reduces the Zn2+ intercalation energy, thus triggering the electrochromism. The pro...
Published in Applied Physics A
Structural, electronic, and magnetic properties of non-metal-doped ZnS monolayers are studied based on spin-polarized plane-wave DFT with Generalized Gradient Approximation as proposed for the solids by Perdew, Burke, and Ernzerhof (PBE-sol). Our results show that B- and C-doped ZnS monolayer showed half-metallic behavior. In contrast, N-doped ZnS ...
Te-free Bi2S3-based thermoelectric materials show great potential for eco-friendly and industrial scale-up applications because of their high-abundance, low-cost, low-toxicity, and low-thermal-conductivity features. However, their low figure of merit, ZT limits their further applications. In this work, we report a high ZT of ~0.8 at ~760 K in n-typ...
Published in Applied Physics A
AbstractAluminum-doped zinc oxide (AZO) thin films with different doping concentrations have been synthesized by simple spray pyrolysis technique. Precursor solution concentration was maintained ~ 50 mM throughout the fabrication process and dopant concentration was varied from 0 to 5 at. %. Prepared solution was sprayed on top of pre-heated glass ...
Published in Chemicke Zvesti
An outbreak of respiratory disorder caused by coronavirus has been named as coronavirus infection 2019 (COVID-19). To find a specific treatment against this disease researchers are at the frontline. To cure COVID-19, favipiravir (FPV) has been reported as an effective drug based on its high recovery rate. Among nanomaterials, fullerene C60 has achi...
