Influence of Load Resistance on Time Constants of Laser-Induced Thermoelectric Voltage Signal in ${\rm La}_{1\hbox{-}x}{\rm Ca}_{x} {\rm MnO} _{3}$ and ${\rm YBa} _{2}{\rm Cu}_{3} {\rm O} _{7\hbox{-}y}$ Thin Films

Guo Yong Zhang,H Zhang,Peng Xiang Zhang,Wing Kee Lee

doi:10.1109/jsen.2007.910297

Influence of Load Resistance on Time Constants of Laser-Induced Thermoelectric Voltage Signal in ${\rm La}_{1\hbox{-}x}{\rm Ca}_{x} {\rm MnO} _{3}$ and ${\rm YBa} _{2}{\rm Cu}_{3} {\rm O} _{7\hbox{-}y}$ Thin Films

Guo Yong Zhang, H Zhang + Show 2 more

https://doi.org/10.1109/jsen.2007.910297

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Journal: IEEE Sensors Journal	Publication Date: Feb 1, 2008
Citations: 6

Affiliation: Kunming University of Science and Technology, Chinese University of Hong Kong, Hefei National Center for Physical Sciences at Nanoscale

#Laser-induced Thermoelectric Voltage #Laser-induced Voltage + Show 8 more

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Abstract

It is found that in laser-induced thermoelectric voltage (LITV) signal in La1-xCaxMnO3 and YBa2Cu3O7-y.H thin films, both the rise-time and decay time are increasing linearly with the total parallel-connected resistance of the load and the film. To obtain fast laser-induced thermoelectric voltage signal, smaller load should be connected in parallel with he film.

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