Pregled bibliografske jedinice broj: 739797
Nano/microstructure and optical properties of ZnO particles precipitated from zinc acetylacetonate
Nano/microstructure and optical properties of ZnO particles precipitated from zinc acetylacetonate // Journal of molecular structure, 1090 (2015), 121-128 doi:10.1016/j.molstruc.2014.11.068 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 739797 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Nano/microstructure and optical properties of ZnO particles precipitated from zinc acetylacetonate
Autori
Petrović, Željka ; Ristić, Mira ; Musić, Svetozar ; Fabián, Martin
Izvornik
Journal of molecular structure (0022-2860) 1090
(2015);
121-128
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
ZnO; nano/microstructure; optical properties
Sažetak
The influence of experimental conditions on the nano/microstructure and optical properties of ZnO particles produced by rapid hydrolysis of zinc acetylacetonate, followed by ageing of the precipitation system at 160 °C, was investigated. Samples were characterized by XRD, FE scanning electron microscopy (FE-SEM), FT-IR, UV/Vis/NIR and photoluminescence (PL) spectroscopies. XRD patterns of all samples were assigned to the hexagonal ZnO phase (wurtzite-type), as well as the corresponding FT-IR spectra. FE-SEM inspection showed a high dependence of the ZnO nano/microstructure on the chemical composition of the reaction mixture and autoclaving time after the rapid hydrolysis of zinc acetylacetonate. Microstructural differences were noticed between C2H5OH/H2O and H2O media, as well as under the influence of NH4OH addition. Measurements of nanocrystallite sizes showed no significant preferential orientation in the (100) and (002) directions relative to the (101) and (110) directions. Somewhat smaller crystallite sizes were noticed for ZnO samples synthesized by adding the NH4OH solution. Dissolution/recrystallization of ZnO particles played an important role in the formation of different ZnO nano/microstructures. The band gap values for prepared ZnO samples were calculated on the basis of recorded UV/Vis spectra. PL spectra were recorded for ZnO samples in powder form and their suspensions in pure ethanol. Noticed differences are discussed.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
Napomena
Rad je prezentiran na skupu the XXXIInd European Congress on Molecular Spectroscopy, održanom od 24.-29.08.2014.g., Düsseldorf, Njemačka.
POVEZANOST RADA
Projekti:
098-0982904-2952 - Sinteza i mikrostruktura metalnih oksida i oksidnih stakala (Ristić, Mira, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Citiraj ovu publikaciju:
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
