Park, K. Seong, J. K. Kim, G. H. 2024-01-20T21:33:27Z 2024-01-20T21:33:27Z 2021-09-03 2009-04-03 0925-8388 https://pubs.kist.re.kr/handle/201004/132574 The Ni-added Zn1-xNixO (0.01 <= x <= 0.05) crystallized in ZnOss with a wurtzite structure, along with a small amount of NiOss with a cubic structure. The addition of NiO to ZnO showed a significant effect on the microstructure along with the development of the cubic NiO, yielding a smaller grain size. The sign of the Seebeck coefficient for all samples was negative over the entire temperature range (600-800 degrees C) i.e., n-type conduction. The addition of NiO to ZnO led to a dramatic increase in both the electrical conductivity and the absolute value of the Seebeck coefficient, providing a significantly improved thermoelectric power factor. Zn0.97Ni0.030 showed an outstanding power factor (1.76 x 10(-3) Wm(-1) K-2) at 800 degrees C due to a high conductivity (69.7 Omega(-1) cm(-1))and a large absolute value of the Seebeck coefficient (503 mu VK-1). The power factor was over 29 times higher than that of NiO-free ZnO (0.62 x 10(-4) Wm(-1) K-2). (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA PARTIAL SUBSTITUTION NACO2O4 ZNO CO MICROSTRUCTURE CUALO2 CA NiO added Zn1-xNixO (0 <= x <= 0.05) for thermoelectric power generation Article 10.1016/j.jallcom.2008.05.101 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.473, no.1-2, pp.423 - 427 JOURNAL OF ALLOYS AND COMPOUNDS 473 1-2 423 427 scie scopus 000264890500087 2-s2.0-61449146331 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article PARTIAL SUBSTITUTION NACO2O4 ZNO CO MICROSTRUCTURE CUALO2 CA Electron microscopy Electrical properties Microstructure ZnO X-ray diffraction