Naslov
ZnO Nanoparticles Produced by Pulsed Laser Ablation in Water Media for UV Protective Coatings

Autori
Lešić, Nikolina ; Budimlija, Ognjen ; Krstulović, Nikša ; Bišćan, Marijan ; Umek, Polona ; Capan, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
22nd International Scientific Meeting on Vacuum Science and Technique / Janez Kovač, Gregor Jakša - Ljubljana : Infokart, 2015, 32-32

ISBN
978-961-92989-7-8

Skup
22nd International Scientific Meeting on Vacuum Science and Technique

Mjesto i datum
Osilnica, Slovenija, 21.05.2015. - 22.05.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
ZnO nanoparticles; laser synthesis of nanoparticles; UV protective coatings

Sažetak
Low dimensional ZnO structures have attracted a considerable interest in the recent years due to the unique properties and their potential for application in areas such as optoelectronics and photovoltaic. Degradation of the UV-protective coatings (mostly polymer-based) due to the prolonged light exposure is a well know problem in the coatings industry. A so called “nano-coatings”, made of ZnO nanoparticles are among the best candidates to replace standard UV-protective coatings. Here, we present a preliminary study on the optical properties and morhphology of ZnO nanoparticles produced by pulsed laser ablation in water media. ZnO nanoparticles were prepared by pulsed laser ablation of a pure ZnO target (99.999%, Kurt J. Lesker) and ZnO with addition of 3% of Al in deionized water. The Zn target was irradiated by a Nd:YAG laser with λ = 1064 nm, 100 mJ of output energy and operating at 5 Hz. The optical absorbance in the UV–visible region of colloidal ZnO nanoparticles was recorded using a UV-VIS spectrophotometer Perkin Elmer (Lambda 25). The spectra clearly exhibit a ZnO surface plasmon peak at 335 nm. Further, the morphology of ZnO nanoparticles was investigated by a field emission scanning electron microscope (SEM, Jeol 7600F). Spherical-shaped particles with diameter around 120 nm were formed using a ZnO with 3% of Al target for the preparation of ZnO nanoparticles. When a pure ZnO target was used, interestingly, a 3D ZnO network was formed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA