Transparent Conductive Titanium and Fluorine Co-doped Zinc Oxide Films.

Aerosol-assisted chemical vapor deposition (AACVD) was used to deposit highly transparent and conductive titanium or fluorine-doped and titanium-fluorine co-doped ZnO thin films on glass substrate at 450 °C. All films were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), UV-Vis spectroscopy, scanning electron spectroscopy (SEM), and four-point probe. The films were 600-680 nm thick, crystalline, and highly transparent (80-87 %). The co-doped film consisted of 0.70 at % titanium and 1 at % fluorine, and displayed a charger carrier mobility, charge carrier concentration, and a minimum resistivity of 8.4 cm2 V-1 s-1, 3.97×1020 cm-3, and 1.69×10-3â€…Ω cm, respectively. A band gap of 3.6 eV was observed for the co-doped film. Compared to the undoped and singly doped films, the co-doped film displayed a notably higher structure morphology (more homogenous grains with well-defined boundaries) suitable for transparent conducting oxide applications.

Evaluation of Photocatalytic, Antioxidant, and Antibacterial Efficacy of Almond Oil Capped Zinc Oxide Nanoparticles.

In this study, ZnO nanoparticles (NPs) were synthesized in the presence of almond oil at various molar ratios of zinc acetate and sodium hydroxide, including 0.5:1, 0.75:1, 1:1, 1.25:1, and 1.5:1, to obtain pH values of 11, 10, 9, 8, and 7, respectively. The XRD results revealed that ZnO NPs exhibit a hexagonal structure, with high crystallinity. SEM results showed that dense and large sized ZnO NPs were formed at pH 11, and relatively small (~30-40 nm) NPs were obtained at pH 9. The size distribution can be explained in terms of the presence of OH- ions at different pH levels. However, the larger size of the NPs at pH 7 compared to those at pH 8-11 were due to the coalescence of NPs suitable for antioxidant/antibacterial activities. ZnO NPs demonstrated a high degradation efficiency (~93%) in 90 min, with a high rate constant for Methyl Orange (MO), which is better than the previously reported rate. The larger sized almond oil capped ZnO NPs also showed excellent radical scavenging activity (94%) and are proven to be good carriers to resist Escherichia coli (E. coli) bacteria.

Exploring the Nexus Between Mindfulness, Gratitude, and Wellbeing Among Youth With the Mediating Role of Hopefulness: A South Asian Perspective.

This study investigates the relationship between mindfulness, gratitude, and psychological wellbeing of young individuals in Pakistan with the potential role of hopefulness as a mediator between mindfulness, gratitude, and wellbeing. Data were collected from young individuals (18-40 years old) from Pakistan. A total sample of 500 participants was collected by employing the online survey questionnaire, and 374 questionnaires were duly filled and returned. The PLS-SEM technique was used to test the proposed hypotheses. The results of the study found that there is a strong direct relationship between gratitude, mindfulness, and hopefulness, and mindfulness is also strongly correlated with wellbeing. However, the relationship between gratitude and wellbeing was not statistically significant. Moreover, the mediation results reveal that the relationship between mindfulness, gratitude, and wellbeing is significantly mediated by hopefulness. This shows that gratitude and mindfulness are crucial in enhancing wellbeing through hopefulness. This study is an important contribution to validating the broaden-and-build theory, which suggests that hopelessness is a significant factor of a depressive state. It can be indicated that inducing hopefulness could be a significant element of the treatment plan of professional clinical psychologists.