TY - JOUR
T1 - Determination of crystal polarities of piezoelectric thin film using scanning nonlinear dielectric microscopy
AU - Kazuta, Satoshi
AU - Cho, Yasuo
AU - Odagawa, Hiroyuki
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2001
Y1 - 2001
N2 - Using scanning nonlinear dielectric microscopy (SNDM), we determined the polarities of ZnO thin films on various substrates including polar materials. In conventional methods based on detecting the piezoelectric and pyroelectric responses, it is very difficult to determine the polarities of thin films, particularly in the case of growing these films on the polar substrates, because the detected signals from thin films are very small and those from the substrates are large. Our SNDM method, however, enables us to determine the polarities of thin films on polar substrates easily. We also determined experimentally that ZnO thin films grew with a sign opposite to the substrate polarity and it was suggested that pyroelectric effects mainly governed the polarity of ZnO films.
AB - Using scanning nonlinear dielectric microscopy (SNDM), we determined the polarities of ZnO thin films on various substrates including polar materials. In conventional methods based on detecting the piezoelectric and pyroelectric responses, it is very difficult to determine the polarities of thin films, particularly in the case of growing these films on the polar substrates, because the detected signals from thin films are very small and those from the substrates are large. Our SNDM method, however, enables us to determine the polarities of thin films on polar substrates easily. We also determined experimentally that ZnO thin films grew with a sign opposite to the substrate polarity and it was suggested that pyroelectric effects mainly governed the polarity of ZnO films.
KW - Dielectric properties
KW - Scanning nonlinear dielectric microscopy
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=0034887614&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034887614&partnerID=8YFLogxK
U2 - 10.1016/S0955-2219(01)00069-3
DO - 10.1016/S0955-2219(01)00069-3
M3 - Article
AN - SCOPUS:0034887614
VL - 21
SP - 1581
EP - 1584
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 10-11
ER -