caa a22 4500 467926492 CHVBK 20180406152931.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1134/S0020168506030137 doi (NATIONALLICENCE)springer-10.1134/S0020168506030137 Secondary emission of nanocrystalline zinc oxide [Elektronische Daten] [V. Gorelik, S. Mikov, M. Sokolovskii, T. Tsuzuki] The Raman and photoluminescence (PL) spectra of nanocrystalline zinc oxide produced by mechanochemical synthesis were measured using a pulsed nitrogen laser (337.1 nm) and xenon lamp (360 nm) as excitation sources in PL measurements and a cw Nd:YAG laser in Raman measurements. PL was observed in the range 400-800 nm. The Raman spectrum of nanocrystalline (90 nm) ZnO was compared to that of coarsegrained ZnO. The Raman bands of nanocrystalline zinc oxide were found to be shifted to lower frequencies and broadened. Laser radiation was shown to cause local heating of zinc oxide up to 1000 K, resulting in photoinduced formation of zinc nanoclusters. Mixtures of zinc oxide and sodium chloride powders are heated to substantially lower temperatures. Under nitrogen laser excitation, the green PL band (535 nm), characteristic of bulk ZnO, is shifted to longer wavelengths by 85 nm. The results are interpreted in terms of light confinement in zinc oxide microclusters consisting of large number of nanocrystallites. The photoinduced processes in question may be a viable approach to producing metal-insulator structures in globular photonic crystals, opals, filled with zinc oxide. Pleiades Publishing, Inc., 2006 Gorelik V. Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, 119991, Moscow, Russia aut Mikov S. Ulyanovsk State University, ul. L'va Tolstogo 42, 432600, Ulyanovsk, Russia aut Sokolovskii M. Ulyanovsk State University, ul. L'va Tolstogo 42, 432600, Ulyanovsk, Russia aut Tsuzuki T. Advanced Nanotechnology Ltd., The University of Western Australia, 6907, Nedlands, Perth, WA, Australia aut Inorganic Materials Nauka/Interperiodica 42/3(2006-03-01), 282-285 0020-1685 42:3<282 2006 42 10789 https://doi.org/10.1134/S0020168506030137 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506030137 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gorelik V. Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Mikov S. Ulyanovsk State University, ul. L'va Tolstogo 42, 432600, Ulyanovsk, Russia aut NATIONALLICENCE 700 1- Sokolovskii M. Ulyanovsk State University, ul. L'va Tolstogo 42, 432600, Ulyanovsk, Russia aut NATIONALLICENCE 700 1- Tsuzuki T. Advanced Nanotechnology Ltd., The University of Western Australia, 6907, Nedlands, Perth, WA, Australia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/3(2006-03-01), 282-285 0020-1685 42:3<282 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer