Cu2O-ZnO nanowire solar cells have the advantages of light weight and high stability while possessing a large active material interface for potentially high power conversion efficiencies. In particular, electrochemically fabricated devices have attracted increasing attention due to their low-cost and simple fabrication process. However, most of them are "partially" electrochemically fabricated ...

Photoactive Cu-containing ZnO-ZnAl2O3 nanocomposites were synthesized by the polymer-salt method. To study structure and properties of materials, methods luminescent spectroscopy X-ray phase analysis used. It has been shown that resulting are capable photogeneration singlet oxygen under action UV blue light. The materials consist nanosized hexagonal ZnO crystals cubic ZnAl 2 O 4 doped with Cu. ...

In this study, we have proposed a new nanoparticle-containing test paper sensor that could be used as an inexpensive, easy-to-use, portable, and highly selective sensor to detect Cu(2+) ions in aqueous solutions. This disposable paper sensor is based on ZnO@ZnS core-shell nanoparticles. The core-shell nanoparticles were synthesized using a chemical method and then they were used for coating the...

A detailed ab initio DFT/GGA and DFT /GGA+U investigation of codoping ZnO with Co and Cu ions reveals the role of Cu and the existence of optimum structural dopant configurations which could lead to the enhancement of ferromagnetism. The role of the Cu ions in Zn Co,Cu O is to act as superexchange mediators while causing a remote delocalization through the hybridization of the Cu d3z2−r2 spin-m...

The photo-assisted carbon dioxide (CO2) hydrogenation provides an efficient and straightforward method for producing solar fuels with high efficiency. However, the development of highly catalysts controllable selectivity long-term stability still faces major challenges. This study proves that energy can promote CO2 over Cu/ZnO efficiently at atmospheric pressure reduction products be controlled...

A study involving nine research stations from the NCR-42 Swine Nutrition Committee used a total of 1,978 crossbred pigs to evaluate the effects of dietary ZnO concentrations with or without an antibacterial agent on postweaning pig performance. In Exp. 1, seven stations (IA, MI, MN, MO, NE, ND, and OH) evaluated the efficacy of ZnO when fed to nursery pigs at 0, 500, 1,000, 2,000, or 3,000 mg Z...

The hydrogenation of CO2 to CH3OH is mostly performed by a catalyst consisting mainly copper and zinc (Cu/ZnO/Al2O3). Here, Cu-Zn based catalysts are generated using surface organometallic chemistry (SOMC) starting from material isolated ZnII sites dispersed on SiO2 – ZnII@SiO2. Grafting [Cu(OtBu)]4 the silanols available ZnII@SiO2 followed reduction at 500 °C under H2 generates CuZnx alloy nan...

Broader context Cuprous oxide (Cu2O) is a candidate material for photovoltaic and photoelectrochemical device applications due to its suitable band gap and low processing cost. Furthermore, due to the natural abundance of its component elements in the atmosphere and crust, it is a candidate for terawatt scale solar energy production. Given the electronic band gap of Cu2O is 2.1 eV, the detailed...

We report on an electrophoretic deposition (EPD) method that is suited for the preparation of both ZnO thin films and micropatterns. By applying small DC voltages between a Cu electrode and a conductive Si substrate, submersed in a suspension of ZnO quantum dots, we can cover entire substrates with ZnO layers of a tuneable thickness ranging from a few monolayers to 200 nm. The deposition occurs...

The mixed metal complex [Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Br]·THF (1) and its isostructural analogues ([Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Cl]·THF (2) and [Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Cl/Br]·THF (3)) have been prepared by a simple metal ligand assembly method and were characterized by their melting points, elemental analysis, IR spectroscopy, thermogravimetry and single crystal X-ray structures. The ...