Journal
SOLID STATE SCIENCES
Volume 7, Issue 12, Pages 1500-1505Publisher
ELSEVIER
DOI: 10.1016/j.solidstatesciences.2005.08.020
Keywords
nanophase materials; zinc blende; zinc oxide
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We describe the all-organic phase conversion of bulk commercial ZnO in the wurtzite modification to sub-30 nm ZnO that we find to be partially in the zinc blende [F (4) over bar 3m, a = 4.568(3) angstrom] modification. The conversion involves refluxing ZnO in 2,4-pentanedione (acetylacetone) at 413 K to form the zinc 2,4-pentanedionate, which is decomposed by heating at 573 K in an appropriate high-temperature solvent such as dibenzylether to form nanophase ZnO. This nanophase, partially zinc blende ZnO can also be obtained in a single step by heating commercial zinc 2,4-pentanedionate in refluxing dibenzylether. Thermodiffractometry suggests that the conversion of zinc blende ZnO to wurtzite ZnO commences near 650 K. (c) 2005 Elsevier SAS. All rights reserved.
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