Carbon-protected BiVO4 photoanode and Cu2O photocathode tandem photoelectrochemical (PEC) system has been explored to reduce surface recombination enhance the stability of photoelectrodes. In addition carbon layer, electrodeposited FeOOH nanolayer drop-casted MoS2 co-catalyst layer on photocathode, respectively improve reaction kinetics. The optimized (Mo-BiVO4/C/FeOOH) (Cu2O/C/MoS2) produces c...

2009 WILEY-VCH Verlag Gmb Considerable research has been carried out on photonic crystals since the concept was introduced in 1987. However, fabrication of high-quality 3D photonic crystals still remains a challenge. Among a wide range of proposed techniques, creation of large-area, defect-free 3D polymeric templates through multibeam interference lithography, direct laser writing, or direct in...

Abstract: Perovskite solar cells have become an attractive subject in the solar energydevice area. During ten years of development, the energy conversion efficiency has beenimproved from 2.2% to more than 22%, and it still has a very good potential for furtherenhancement. In this paper, a numerical model of the perovskite solar cell with thestructure of glass/ FTO/ TiO2/...

The new electrical conductive material, copper alloy, C194 in situ composite, has been developed for the application to leadframe, high field magnet and trolley wire. This material has a low cost, high thermal and electrical conductivity, easy fabrication and joining, and also has a wide range of attainable mechanical properties. In C194, copper is one of the core materials in producing leadfra...

The synthesis of CaCO3/Cu2O/GO nanocomposites was developed by sol-gel auto-combustion method. analysis structure completed on X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and environmental scanning electron microscopy (ESEM). XRD spectra the matched crystal CaCO3/Cu2O. average size 20 nm for Cu2O 25 CaCO3 nanoparticles. FTIR data showed absorptio...

2014 Knoop microhardness tests have been performed at room temperature on Cu2O cuprous oxide single crystals. Hardness anisotropy analysis indicates that { 110} 110> is the operative slip system. LE JOURNAL DE PHYSIQUE LETTRES TOME 38, 1 er JANVIER 1977, 1 Classification Physics Abstracts 7.222