Here, we have synthesized Ag2O3-ZnO nanocones (NCs) by a wet-chemical route using reducing agents at low temperature. The structural, optical and morphological properties of Ag2O3-ZnO NCs were investigated by several conventional techniques such as powder XRD, XPS, FESEM, XEDS, FTIR and UV/vis. spectroscopy. The analytical parameters of prepared NCs were also calculated for a selective detectio...

A novel biosensor was developed by immobilizing hemoglobin (Hb) on a glassy carbon electrode (GCE) modified with a composite of ZnO nano-rods and carbon nanofiber (CNF), a strong reducer, hydrazine, was firstly used to evaluate the electrochemical behavior of Hb on Hb/ZnO/CNF/GCE. UV-vis and circular dichroism (CD) spectra indicated the conformational structure of Hb interaction with ZnO/CNF wa...

Cadmium (Cd) has attained top priority among all the toxic trace elements, and it easily accumulates in human body through various pathways. The current pot study was focused on impacts of foliar spray zinc oxide nanoparticles (ZnO NPs) (0, 50, 75, 100 mg·L−1), alone or combined with soil-applied bamboo biochar (1.0% w/w), maize growth Cd Zn accumulations grains under Cd-contaminated soil. resu...

Electrochemical deposition (ECD) is a versatile technique for the preparation of ZnO nanowires (NWs) and nanorods (NRs) with high structural and optical quality. The bandgap of the ZnO NWs can be engineered by doping. Depending on the doping cation and concentration, the bandgap is increased or decreased in a controlled manner. The NW arrays have been grown on various substrates. The epitaxial ...

Quantum dots (QDs) or semiconductor nanocrystals are of great interest to fundamental studies but have also potential applications as biological probes (Medintz et al., 2005), fluorescent biosensor (Costa-Fernandez et al., 2006), light-emitting diodes (LEDs) (Lim et al. 2007), and solar cells (Robel et al., 2006). Owing to the effect of quantum confinement, QDs show exceptional physical and che...

Abstract The shelf-stability issue, originating from the ZnO-induced positive aging effect, poses a significant challenge to industrializing display technology based on solution-processed quantum-dot light-emitting diodes (QLEDs). Currently, none of proposed solutions can simultaneously inhibit exciton quenching caused by ZnO-based electron-transporting layer (ETL) and retain other advantages Z...

Context Cadmium (Cd) toxicity and zinc (Zn) deficiency are of major concerns for crop growth quality. Moreover, their interactive effects exert some controversial reports. Aims The oxide nanoparticles (ZnO NPs) Cd on growth, physiology, metal distribution in mung beans (Vigna radiata L.) was investigated. Methods Seven-day-old seedlings were treated with Zn (0, 1, 2, 4, 8, 16 32 μM) 0.5, 1 14 d...

This paper summarizes our work toward improving reproducibility in fabricating high efficiency absorbers and devices. This resulted in the fabrication of a CIGS cell with an efficiency of 21% under concentrated light. We compare devices fabricated with CdS and with Cd solution treatment alone. A high conversion efficiency of 15.7% is obtained with the latter, and we attribute this to the n-type...