Raman study of structural disorder in ZnO nanopowders
Нема приказа
Аутори
Šćepanović, MajaGrujic-Brojcin, Mirjana U
Vojisavljević, Katarina
Bernik, Slavko
Srećković, Tatjana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Raman scattering spectroscopy has been used for the characterization of zinc oxide nanoparticles obtained by mechanical activation in a high-energy vibro-mill and planetary ball mill. Raman modes observed in spectra of nonactivated sample are assigned to Raman spectra of the ZnO monocrystal, while the spectra of mechanically activated samples point out to the structural and stoichiometric changes, depending on the milling time and the choice of equipment. Observed redshift and peak broadening of the E2(high) and E1 (LO) first-order Raman modes are attributed to increased disorder induced by mechanical milling, followed by the effects of phonon confinement due to correlation length decrease. The additional modes identified in Raman spectra of activated ZnO samples are related to the surface optical phonon modes, due to the intrinsic surface defects and presence of ZrO(2)as extrinsic defects introduced by milling in zirconia vials.
Кључне речи:
ZnO nanopowder / surface optical phonons / Raman scattering / phonon confinementИзвор:
Journal of Raman Spectroscopy, 2010, 41, 9, 914-921Издавач:
- John Wiley & Sons Ltd, Chichester
Финансирање / пројекти:
- Slovenian Research AgencySlovenian Research Agency - Slovenia [P2-0084-0106/05]
- Физика нискодимензионих и нанометарских структура и материјала (RS-MESTD-MPN2006-2010-141047)
- Савремена метал-оксидна електрокерамика и танки филмови (RS-MESTD-MPN2006-2010-142040)
DOI: 10.1002/jrs.2546
ISSN: 0377-0486
WoS: 000282837300002
Scopus: 2-s2.0-77957348054
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Šćepanović, Maja AU - Grujic-Brojcin, Mirjana U AU - Vojisavljević, Katarina AU - Bernik, Slavko AU - Srećković, Tatjana PY - 2010 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/389 AB - Raman scattering spectroscopy has been used for the characterization of zinc oxide nanoparticles obtained by mechanical activation in a high-energy vibro-mill and planetary ball mill. Raman modes observed in spectra of nonactivated sample are assigned to Raman spectra of the ZnO monocrystal, while the spectra of mechanically activated samples point out to the structural and stoichiometric changes, depending on the milling time and the choice of equipment. Observed redshift and peak broadening of the E2(high) and E1 (LO) first-order Raman modes are attributed to increased disorder induced by mechanical milling, followed by the effects of phonon confinement due to correlation length decrease. The additional modes identified in Raman spectra of activated ZnO samples are related to the surface optical phonon modes, due to the intrinsic surface defects and presence of ZrO(2)as extrinsic defects introduced by milling in zirconia vials. PB - John Wiley & Sons Ltd, Chichester T2 - Journal of Raman Spectroscopy T1 - Raman study of structural disorder in ZnO nanopowders EP - 921 IS - 9 SP - 914 VL - 41 DO - 10.1002/jrs.2546 ER -
@article{ author = "Šćepanović, Maja and Grujic-Brojcin, Mirjana U and Vojisavljević, Katarina and Bernik, Slavko and Srećković, Tatjana", year = "2010", abstract = "Raman scattering spectroscopy has been used for the characterization of zinc oxide nanoparticles obtained by mechanical activation in a high-energy vibro-mill and planetary ball mill. Raman modes observed in spectra of nonactivated sample are assigned to Raman spectra of the ZnO monocrystal, while the spectra of mechanically activated samples point out to the structural and stoichiometric changes, depending on the milling time and the choice of equipment. Observed redshift and peak broadening of the E2(high) and E1 (LO) first-order Raman modes are attributed to increased disorder induced by mechanical milling, followed by the effects of phonon confinement due to correlation length decrease. The additional modes identified in Raman spectra of activated ZnO samples are related to the surface optical phonon modes, due to the intrinsic surface defects and presence of ZrO(2)as extrinsic defects introduced by milling in zirconia vials.", publisher = "John Wiley & Sons Ltd, Chichester", journal = "Journal of Raman Spectroscopy", title = "Raman study of structural disorder in ZnO nanopowders", pages = "921-914", number = "9", volume = "41", doi = "10.1002/jrs.2546" }
Šćepanović, M., Grujic-Brojcin, M. U., Vojisavljević, K., Bernik, S.,& Srećković, T.. (2010). Raman study of structural disorder in ZnO nanopowders. in Journal of Raman Spectroscopy John Wiley & Sons Ltd, Chichester., 41(9), 914-921. https://doi.org/10.1002/jrs.2546
Šćepanović M, Grujic-Brojcin MU, Vojisavljević K, Bernik S, Srećković T. Raman study of structural disorder in ZnO nanopowders. in Journal of Raman Spectroscopy. 2010;41(9):914-921. doi:10.1002/jrs.2546 .
Šćepanović, Maja, Grujic-Brojcin, Mirjana U, Vojisavljević, Katarina, Bernik, Slavko, Srećković, Tatjana, "Raman study of structural disorder in ZnO nanopowders" in Journal of Raman Spectroscopy, 41, no. 9 (2010):914-921, https://doi.org/10.1002/jrs.2546 . .