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Pregled bibliografske jedinice broj: 931328

Parameters optimization for synthesis of Al- doped ZnO nanoparticles by laser ablation in water


Krstulović, Nikša; Salamon, Krešimir; Budimlija, Ognjen; Kovač, Janez; Dasović, Jasna; Umek, Polona; Capan, Ivana
Parameters optimization for synthesis of Al- doped ZnO nanoparticles by laser ablation in water // Applied surface science, 440 (2018), 916-925 doi:10.1016/j.apsusc.2018.01.295 (međunarodna recenzija, članak, znanstveni)


Naslov
Parameters optimization for synthesis of Al- doped ZnO nanoparticles by laser ablation in water

Autori
Krstulović, Nikša ; Salamon, Krešimir ; Budimlija, Ognjen ; Kovač, Janez ; Dasović, Jasna ; Umek, Polona ; Capan, Ivana

Izvornik
Applied surface science (0169-4332) 440 (2018); 916-925

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ZnO, Nanoparticles, Al-doped ZnO nanoparticles, Laser ablation in liquids, Laser synthesis of ZnO nanoparticles, Colloids

Sažetak
Al-doped ZnO crystalline colloidal nanoparticles were synthesized by a laser ablation of ZnO:Al2O3 in MilliQ water. Experiments were performed systematically by changing the number of applied laser pulses and laser output energy with the aim to affect the nanoparticle size, composition (Al/Zn ratio) and characteristics (band-gap, crystallinity). Distinctly, set of nanoparticle syntheses was performed in deionized water for comparison. SEM investigation of colloidal nanoparticles revealed that the formed nanoparticles are 30 nm thick discs with average diameters ranging from 450 to 510 nm. It was found that craters in the target formed during the laser ablation influence the size of synthesized colloidal nanoparticles. This is explained by efficient nanoparticle growth through diffusion process which take place in spatially restricted volume of the target crater. When laser ablation takes place in deionized water the synthesized nanoparticles have a mesh-like structure with sparse concentration of disc-like nanoparticles. Al/Zn ratio and band-gap energy of nanoparticles are highly influenced by the number and output energy of applied laser pulses. In addition, the procedure how to calculate the concentration of colloidal nanoparticles synthesized by laser ablation in liquids is proposed. The Al-doped ZnO colloidal nanoparticles properties were obtained using different techniques like scanning electron microscopy, optical microscopy, energy- dispersive X-ray spectroscopy, grazing- incidence X-ray diffraction, photoabsorption, photoluminescence and X-ray photoelectron spectroscopy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-2753 - Dijagnostika Interakcije lasera i hladne plazme (Slobodan Milošević, )

Ustanove
Institut za fiziku, Zagreb,
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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