Abstract
Laser-induced thermoelectric voltage effect signal was observed in the La0.9Sr0.1NiO3 (LSNO) thin films grown on LaAlO3 single crystal substrate which is cut with 5° tilting angle along the 〈100〉 direction by excimer pulsed laser deposition. The results of the LITV measurement demonstrated that the peak voltage of LSNO thin films was strong and could reach as large as 700mV when laser energy density is 2mJ/mm2. The rising time of LITV signal was less than 20ns. Moreover, the peak voltage increased linearly with the single-pulse laser energy density. Above characteristics indicate LSNO thin films are a potential candidate for laser energy/power detectors is an excellent choice.
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