PV technology offers a sustainable solution to the increased energy demand especially based on mono- and polycrystalline silicon solar cells. The most recent years have allowed successful development of perovskite tandem heterojunction Si-based cells with conversion efficiency over 28%. metal oxide great potential application in future photovoltaic field. Cu2O (band gap 2.07 eV) ZnO 3.3 are ver...

Suppose Si is a finite set of pure strategies for players i D 1; : : : ; n in normal form game G, so that S D S1 : : : Sn is the set of pure strategy profiles for G, and i .s/ is the payoff to player i when strategy profile s 2 S is chosen by the players. We denote the set of mixed strategies with support in S as mS D S1 : : : Sn, where Si is the set of mixed strategies for player i with suppor...

Novel 3D flower-like NiMnFe mixed oxides as monolith catalysts prepared by an in situ hydrothermal method show enhanced performance for the selective catalytic reduction of NO with NH(3).

We provide direct and unambiguous experimental spectroscopic evidence for the structure of a switching oxide trap in thermally grown SiO2 gate oxides on Si. Switching oxide traps can ‘‘switch’’ charge state in response to changes in the voltage applied to the gate of a metal-oxide-semiconductor field-effect transistor. Electron spin resonance measurements reveal that some Eg8 centers ~a hole tr...

Chemical Looping with Oxygen Uncoupling (CLOU) is a technological adaptation of CLC, most applicable for the combustion solid fuels. In CLOU process, an oxygen carrier in fuel reactor, avoiding direct contact air, releases needed combustion. The regenerated air interconnected reactor. present work explores behavior system Mn/Mg/Si as carriers chemical-looping uncoupling (CLOU). Six different mi...

Au nanoparticles with small sizes (1-4 nm) were effectively formed on Mg-Al mixed oxides (Au/MAO), which showed superior catalytic performances and good recyclability in aerobic homocoupling of phenylboronic acid.

Biodiesel production is worthy of continued study and optimization of production procedures due to its environmentally beneficial attributes and its renewable nature. Heterogeneous transesterification is considered to be a green process. The process requires neither catalyst recovery nor aqueous treatment steps and very high yields of methyl esters can be obtained, close to the theoretical valu...

teachers can influence the complex process of learning in education, in general, and in second/foreign language (l2) learning in particular. in this light, understanding the factors influencing teachers’ pedagogical success can help l2 teachers achieve more effective teaching. this study then investigated the role of spiritual intelligence (si) in l2 teachers’ pedagogical success. in so doing, ...

Reactions in the gas phase are of primary technological importance for applications in nano- and microfabrication technology and in the semiconductor industry. We present exclusively gas-phase protocols to chemically passivate oxide-free Si(111) and Si(100) surfaces with short-chain alkynes. The resulting surfaces showed equal or better oxidation resistance than most existing liquid-phase-deriv...