Double-peaked decay of transient photovoltage in nanoporous ZnO/n-Si photodetector

Líu, Hao; Fu, Cheng; Zhao, Kun

doi:10.1007/s11433-014-5459-4

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…Perovskite manganite, which has attracted considerable attention because of its potential applications to future electronic devices with multifunctional and highly stimulus-sensitive properties, is a typical system that shows multifunctional properties due to strong electron correlation and magnetic state dependence of the band structure with a chemical stability [18][19][20][21][22][23]. Many researchers have devoted time to study the nature of carrier transport in the photoelectric process and explore photoswitch characteristics of devices based on doped manganite thin films and heterostructures [24][25][26][27][28][29][30]. Recent researches presented picosecond photoelectric effects in tilted-orientation SrTiO 3 single crystals and La 2/3 Ca 1/3 MnO 3 films on tilted STO substrates [31,32].…”

Section: Introductionmentioning

confidence: 99%

Giant negative photoresistance of epitaxial manganite La2/3Ca1/3MnO3−δ film

Zhao

et al. 2015

Sci. China Inf. Sci.

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The La 2/3 Ca 1/3 MnO 3−δ film has been deposited on the (001) SrTiO 3 substrate and its temperature-dependent photoconductive properties have been investigated from 80 to 300 K. The La 2/3 Ca 1/3 MnO 3−δ film has a novel photoelectric property due to its oxygen-deficient structure. We observed laser-induced giant negative photoresistance of the sample in a wide temperature range. The change rate of negative photoresistance was nearly 100% at the low temperature when the sample was irradiated by 532 nm laser. In addition, this effect was sensitive to the power of laser irradiation. The oxygen-deficiency of La 2/3 Ca 1/3 MnO 3−δ film seems to have an impact on the laser-induced resistance variation. The experimental results made the La 2/3 Ca 1/3 MnO 3−δ film a promising application as a photoswitch device.

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