Chawla, Santa and K. , Jayanthi and Khan, Zahid H. and Shah, Jyoti and Kotnala, R. K. (2009) Near UV emission and p-type conductivity in Zn1−xLixO and Zn1−xNaxO nanomaterial system. Materials & Design , 31 (4). pp. 1666-1670. ISSN 0261-3069

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Abstract

The nanomaterial system Zn1−xLixO and Zn1−xNaxO (0<x<0.15) were synthesized by controlled solid state reaction. XRD analysis showed well formed wurtzite structure of average particle size about 50 nm and change in lattice parameters due to incorporation of group I element in ZnO lattice. SEM exhibited formation of nanorods. Hall effect measurement of Zn1−xLixO and Zn1−xNaxO system showed p-type conductivity which varied with concentration of Li and Na. Photoluminescence showed strong emission peak in near UV at 3.11 eV (398 nm) and negligible visible emission. The PL peak positions in Zn1−xLixO and Zn1−xNaxO nearly coincide which suggest very similar recombination mechanism in Li and Na doped ZnO nanocrystals. The results hold potential for fabrication of ZnO based near UV LEDs.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Subjects:	Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	13 Jun 2012 11:15
Last Modified:	13 Jun 2012 11:15
URI:	http://npl.csircentral.net/id/eprint/258

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