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Voltage tunable photodetecting properties of La0.4Ca 0.6MnO3 films grown on miscut LaSrAlO4 substrates

Journal Article


Abstract


  • We report the voltage tunable photodetecting properties of a La 0.4Ca0.6MnO3 film grown on miscut LaSrAlO 4 (001) substrates under ultraviolet pulsed laser irradiation at ambient temperature. The photovoltage and photocurrent peak sensitivities can be tuned in the range of 0.295-0.786 V/mJ and 0.172-0.314 A/mJ, respectively, when the applied bias is changed from -20 to +20 V, indicating that the vicinal manganite film can be used as an electric tunable ultraviolet photodetector. A possible mechanism based on the high resolution transmission electron microscopy is introduced to explain the experiment results. © 2010 American Institute of Physics.

Publication Date


  • 2010

Citation


  • Li, X. M., Zhao, K., Ni, H., Zhao, S. Q., Xiang, W. F., Lu, Z. Q., . . . Wong, H. K. (2010). Voltage tunable photodetecting properties of La0.4Ca 0.6MnO3 films grown on miscut LaSrAlO4 substrates. Applied Physics Letters, 97(4). doi:10.1063/1.3473781

Scopus Eid


  • 2-s2.0-77955720577

Volume


  • 97

Issue


  • 4

Abstract


  • We report the voltage tunable photodetecting properties of a La 0.4Ca0.6MnO3 film grown on miscut LaSrAlO 4 (001) substrates under ultraviolet pulsed laser irradiation at ambient temperature. The photovoltage and photocurrent peak sensitivities can be tuned in the range of 0.295-0.786 V/mJ and 0.172-0.314 A/mJ, respectively, when the applied bias is changed from -20 to +20 V, indicating that the vicinal manganite film can be used as an electric tunable ultraviolet photodetector. A possible mechanism based on the high resolution transmission electron microscopy is introduced to explain the experiment results. © 2010 American Institute of Physics.

Publication Date


  • 2010

Citation


  • Li, X. M., Zhao, K., Ni, H., Zhao, S. Q., Xiang, W. F., Lu, Z. Q., . . . Wong, H. K. (2010). Voltage tunable photodetecting properties of La0.4Ca 0.6MnO3 films grown on miscut LaSrAlO4 substrates. Applied Physics Letters, 97(4). doi:10.1063/1.3473781

Scopus Eid


  • 2-s2.0-77955720577

Volume


  • 97

Issue


  • 4