In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 34, No. 12R ( 1995-12-01), p. 6452-
Abstract:
The microstructure and nonohmic characteristics of polycrystalline ZnO-V 2 O 5 ceramics with V 2 O 5 as the only additive ranging from 0 to 2 mol% were investigated. An abnormal grain growth was observed for ZnO doped with V 2 O 5 and sintered at 900° C. However, the non-uniformity of the grain structure alleviated with increasing the V 2 O 5 content or sintering temperature. The ZnO-V 2 O 5 ceramics have shown characteristics of nonohmic V-I behavior and large apparent dielectric constant with a relaxation peak of 0.36 eV at 300 kHz. The electrical properties of these ZnO-V 2 O 5 ceramics depended strongly on the processing conditions and V 2 O 5 content, and there seems a close relation between the nonlinear electric properties and the concentration of the deeply-trapped defects at 0.36 eV in ZnO.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.34.6452
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1995
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
