All thin ZnO films are synthesized by nebulizer on silicon substrates with growth periods of 10, 20, and 30 minutes. The characterizations performed ultraviolet-visible (UV-Vis) spectrophotometer, scanning probe microscopy, X-ray diffraction (XRD), the various durations minutes have been observed. results show that all samples polycrystalline hexagonal wurtzite varying root mean square (RMS) ro...

A hexagonal wurtzite ZnO photocatalyst was prepared via a precipitation method. CuS nanoparticles (NPs) and PbS quantum dots (QDs) were loaded onto hydrothermal method to obtain CuS/PbS/ZnO heterojunction photocatalyst. The obtained the abovementioned has significant absorption capabilities in ultraviolet near-infrared spectral regions, effectively reduced recombination of electron–hole pairs d...

In this study, we first compare the bandgap determination methods in SiON thin films using two established techniques: Ellipsometry and Energy Loss Spectrum from X-ray Photoelectron Spectroscopy. ellipsometry case, modelled optical properties a single Tauc-Lorentz oscillator model, range 1.5 to 6 eV, while for XPS used threshold energy of O1s N1s main core levels determine bandgap. We observed ...

هدف این پژوهش، طراحی مدل بهینه‌سازی دوسطحی برای زنجیره تأمین است؛ به‌طوری‌که تصمیم‌گیری غیرمتمرکز کمّی و کیفی را در سطوح استراتژی تاکتیکی ادغام کند. کارخانه تولیدی نقش تصمیم‌گیرنده سطح بالا با ارائه تخفیف مقداری، به دنبال ترغیب مشتریان سفارش خرید بیشتر است. پایین، به‌عنوان پایین تمایل دارند مقادیر از طریق مشارکتی، مقیاس اقتصادی دست یابند. یکی نخستین پژوهش­هایی است که یافتن راه‌حل‌های بهینه مسئله...

Exploring the thickness-dependent electronic properties of ultrathin transition metal dichalcogenides is crucial for novel optoelectronic devices. Particularly important experimental information regarding bandgap width. This scarce and often inconsistent among several measurement techniques that were employed this task, such as optical absorption, scanning tunneling spectroscopy, photoconductiv...

In this study, polymeric nanocomposites of PANI and PANI/nanometal oxides (Fe2O3, NiO, SnO2, WO3, ZrO2) as photocatalysts were synthesized with a chemical polymerization method. Structural characterizations performed follows: FT-IR, SEM, TEM XRD, TGA. The effect pure nanometal on the degradation naproxen, drug active ingredient, was studied under visible light (UV-A at 365 nm) in absence light....

In this report, ZnO nanoparticles (NPs) was synthesized by chemical method using Zinc Acetate dehydrate [Zn(CH3COO)2.2H2O)] as precursors and Ethanol distilled water solvent. Sodium hydroxide (NaOH) used to maintain the pH helps establish NPs. The NPs are characterized XRD, UV-visible spectroscopy SEM image analysis. XRD characterization gives polycrystalline nature of with size ~23 nm ~27 calc...

The optical energy gap of anthocyanin compounds from sea lettuce extract (Ulva lactuca L.) has been calculated using the Tauc plot method. Sea plants taken at Sanur Beach Bali. was dried then mashed and extracted for 24 hours, last being macerated through three cycles. extraction results are evaporated to obtain a thick solution. Extracted evaporated-extraction samples were characterized by UV-...

با توجه به الزامات زیست‌محیطی، اجتماعی و اقتصادی، طراحی شبکه زنجیره تأمین حلقه‌­بسته پژوهشگران زیادی را خود جذب کرده است. این مسئله بیشتر به‌صورت مجزا از ارزیابی تأمین‌کنندگان موردمطالعه قرار گرفته عوامل مختلفی به‌جز قیمت مانند ویژگی‌های تأمین‌کننده قطعه می‌تواند تأثیر بر عملکرد داشته باشد. در پژوهش یک شامل سایت‌های تولید، جداسازی، بازسازی دفع نظر مدلی تلفیقی سه مرحله ارائه شده نخست روش ترکیبی ...