DocumentCode
526732
Title
Notice of Retraction
Study on two types of humidity sensors of nanometer barium titanate
Author
Xiaohua Wang ; Jing Wang ; Bo Ye ; Qian Zhao
Author_Institution
Inst. of Microelectron., Shanghai Univ. of Electr. Power, Shanghai, China
Volume
6
fYear
2010
fDate
9-11 July 2010
Firstpage
599
Lastpage
601
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The surface-type and the sandwich-type humidity sensors were fabricated with nanometer barium titanate film. The resistance, capacitance and impedance properties of the sensors were measured and analyzed at different frequency when relative humidity (RH) changes from 11% RH to 98% RH. The two types of humidity sensors have the similar properties. The results indicate the high sensitivity and influence of frequency. The resistance and the impedance mainly decrease while the capacitance rises as the relative humidity increases. The former are affected greatly by the frequency in low RH but hardly in high RH. The frequency has a various effect on the latter at the whole RH range and the linearity of the Capacitance-frequency (C-f) curve is good. The curves of the impedance are quite consistent with that of the resistance. The humidity mechanisms are discussed based on this. We consider that the humidity sensitive properties are determined mainly by the abundant interfaces among grains, which are affected by the absorbed water.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The surface-type and the sandwich-type humidity sensors were fabricated with nanometer barium titanate film. The resistance, capacitance and impedance properties of the sensors were measured and analyzed at different frequency when relative humidity (RH) changes from 11% RH to 98% RH. The two types of humidity sensors have the similar properties. The results indicate the high sensitivity and influence of frequency. The resistance and the impedance mainly decrease while the capacitance rises as the relative humidity increases. The former are affected greatly by the frequency in low RH but hardly in high RH. The frequency has a various effect on the latter at the whole RH range and the linearity of the Capacitance-frequency (C-f) curve is good. The curves of the impedance are quite consistent with that of the resistance. The humidity mechanisms are discussed based on this. We consider that the humidity sensitive properties are determined mainly by the abundant interfaces among grains, which are affected by the absorbed water.
Keywords
barium compounds; humidity sensors; abundant interfaces; barium titanate; capacitance frequency curve; humidity sensitive properties; humidity sensors; nanometer; relative humidity; Ceramics; Humidity; capacitance property; humidity mechanism; humidity sensor; impedance property; resistance property; sandwich-type; surface-type;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-5537-9
Type
conf
DOI
10.1109/ICCSIT.2010.5565055
Filename
5565055
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