Premium
Structural and morphological studies on Mn substituted ZnO nanometer‐sized crystals
Author(s) -
Mote V. D.,
Purushotham Y.,
Dole B. N.
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201100107
Subject(s) - wurtzite crystal structure , selected area diffraction , crystallography , transmission electron microscopy , materials science , crystal structure , nanocrystal , nanorod , lattice constant , doping , diffraction , analytical chemistry (journal) , hexagonal crystal system , chemistry , nanotechnology , optics , physics , optoelectronics , chromatography
Mn substituted ZnO nanocrystals synthesized by a co‐precipitation method. X‐ray diffraction (XRD) studies confirms the presence of wurtzite (hexagonal) crystal structure similar to un doped ZnO, suggesting that doped Mn ions go at the regular Zn sites. The lattice parameters a and c are increasing with increasing Mn content. The unit cell volume increases with increasing Mn concentration, indicating the homogeneous substitution of Mn 2+ for the Zn 2+ . The lattice distortion parameter (ε v ) is evaluated from XRD data and found that it enhances as Mn content increases. Transmission electron microscopy photographs show that the size of the ZnO crystals is in the range of 20‐50 nm. The SAED pattern confirms the hexagonal and crystalline nature of the samples which are in agreement with X‐ray analysis. The chemical groups of the samples have been identified by FTIR studies (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)