Anshul, Avneesh and Borkar, Hitesh and Singh, Paritosh and Pal, Prabir and Kushvaha, Sunil S. and Kumar, Ashok (2014) Photoconductivity and photo-detection response of multiferroic bismuth iron oxide. Applied Physics Letters, 104 (13). ISSN 0003-6951

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We report visible light detection with in-plane BiFeO3 (BFO) thin films grown on pre-patterned inter-digital electrodes. In-plane configured BFO film displayed photocurrents with a 40: 1 photo-to-dark-current ratio and improved photo-sensing ability for >15 000s (4 h) under small bias voltage (42 V). Nearly, sixty percent of the photo-induced charge carriers decay in 1.0s and follow a double-exponential decay model. At 373 K, the effect of light does not significantly increase the dark current, probably due to reduced mobility. Sub-bandgap weak monochromatic light (1 mw/cm(2)) shows one fold increase in photo-charge carriers.

Item Type: Article
Subjects: Physics
Depositing User: Dr. Rajpal Walke
Date Deposited: 03 Nov 2015 05:40
Last Modified: 03 Nov 2015 05:40

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