Giant piezooptics effect in the ZnO–Er3+ crystalline films deposited on the glasses

Synthesis, Characterization, and Photocatalysis of ZnO and Er‐Doped ZnO

“…The modification of ZnO via doping with metal ions has been developed as an effective method to promote photocatalytic activity [6][7][8][9]. There have been many studies reporting the optical properties of Er-doped ZnO, and some of them specifically, the photocatalysis of Er-doped ZnO [9][10][11][12][13][14][15]. This paper reports a simple route for the preparation of undoped and Er-doped zinc oxide nanoparticles via the chemical precipitation method.…”

“…Methylene blue is a blue, organic cationic thiazine dye that has been commonly employed as a model dye to evaluate the photocatalytic activity among other photosensitizing dyes like eosin Y, pyrene, and so forth. [10] is one of the most successful and easy to conduct techniques for synthesizing Er-dopped ZnO powders among solid-state reaction method [9,15], the spray deposition technique method [11], sol-gel method [13], and so forth. Briefly, with urea as a precipitating agent, erbium nitrate (AR, 99.99%) and zinc acetate were added to a water bath at 80 ∘ C and heated for 4 h. This mixture was then left to cool and settle for half an hour; this was followed by centrifugal separation and successive washing with deionized water and anhydrous alcohol, which was repeated five times.…”

Thermally stimulated third-order optical nonlinearity in Cd-doped CuO–PVA thin films under cw laser illumination

“…Doping into NPs may result additional local polarizability and anharmonicity creating interacting phonon subsystems [37]. The interaction of these phonon subsystems with incident light beam may show piezooptical or photoelastic effect and contribute toward the enhancement of second-order and third-order nonlinear optical properties [38]. The presence of polymeric host material (PVA) with different dielectric constant also plays an important role in determining NLO properties of the colloidal system due to dielectric effects and surface states effects [39,40].…”

PHOTOELECTRICAL AND PIEZOOPTICAL PROPERTIES OF Cu1-xZnx InS2 SOLID SOLUTIONS

“…% ZnIn 2 S 4 . Що може обумовлюватись специфічним вкладом фононної підсистеми за рахунок появи ан-гармонічних фононів [23][24][25][26]. Досліджуваний ефект був максимальний для діагонального п'єзооптичного коефіцієнта.…”