A spectrophotometer cuvet is described which is emptied by suction without removal from the instrument. The use of this cuvet saves time and minimizes the chance of breakage. Data from C " measurements and absorbances of a dye solution show minimal retention error from successive specimens. expended in determining the absonbances of a large series of individual samples in a spectrophotometer ca...

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...

The optical degradation of encapsulants from ultraviolet (UV) radiation has historically resulted in a significant loss performance throughout the life photovoltaic (PV) module. International Electrotechnical Commission (IEC) test methods have recently been developed to screen for PV prone performance. present study was performed benchmark polymeric packaging materials relative IEC 62788-1-4 (c...

Abstract. The total column ozone (TCO3) measurements by the Dobson spectrophotometer (serial no. 84) have been carried out at Belsk station (51∘50′ N, 20∘47′ E), Poland, since 23 March 1963. In total, ∼115 000 intraday manual observations were made 31 December 2019. These performed for different combinations of double wavelength pairs in ultraviolet range and observation types, i.e., direct sun...