2016年2月1日 · The photoluminescence (PL) of temperature-dependent of ZnO nanoparticles and nanorods prepared following a sol–gel preparation method is investigated. The size and shape of the nanostructures used are shown to influence the luminescence properties both in the near ultraviolet and visible domain.

By conducting time-dependent PL (t -PL) and photothermal deflection spectroscopy (PDS) measurements under vacuum and different gases, it is proposed that both inert (N 2) and reactive (O 2) molecules can be absorbed on the ZnO NP surface and induce charge transfer (CT).

2013年2月1日 · The effect of annealing temperature and pH impact on ZnO products with respect to the morphological and photoluminescence (PL) characteristics has been investigated. It is found that the synthesized ZnO nanoparticles have pure wurtzite structure and the average crystallite size increased with increasing annealing temperature.

(PL) spectra are effective way to study the effect of morphology on the electronic, optical and photochemical property of semiconductor like ZnO. The synthesized ZnO nanoparticles, ZnO...

2022年1月1日 · An optical transition in ZnO semiconductor has been studied by different techniques such as photoluminescence (PL), transmission, optical absorption, reflection, cathode luminescence, etc. Amongst all these methods, the PL technique has been widely employed to know the optical behaviour of ZnO structures.

2021年4月26日 · We report here structural, electrical, photoluminescence (PL), and optical investigations of ZnO nanoparticles. The ZnO samples are initially sintered at various temperatures (T s) (600–1200 °C) temperatures and their size is reduced twice to nanoscale by using ball friction at 200 rpm rotational speed and 30 min duration.

In this study, ZnO-GO particles for the photocatalytic degradation of methylene blue (MB) dye were successfully biosynthesized. Microwave-assisted biosynthesis was carried out using the extract...

2015年6月22日 · 用 XRD和室温PL谱对原位沉积的ZnO薄膜进行了分析。PL谱的激发源为He－Cd激光器， 激发波长325nm．功率25Inw．用1P28光放大器收集后，经Stanford Research SR830 DSP 锁相放大器放大。

2012年9月13日 · Oxygen vacancies of zinc oxide were followed by photoluminescence (PL) and electron paramagnetic resonance (EPR) spectroscopies. The green PL emission was associated with oxygen vacancies: its intensity is enhanced upon static thermal treatment under inert or under vacuum, whereas it decreases upon oxygen treatment.

2 天之前 · A study of the influence of mechanical bending on the electrical resistance, photoconductivity (PC), and photoluminescence (PL) of epitaxial ZnO films is presented. We have found a systematic decrease in the electrical resistance and of the energy gap extracted from the photoconductivity and photoluminescence spectra as the bending of the film is increased. From the photoconductivity spectra ...