Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3474
Title: Investigation of Photovoltaic Response in Brownmillerite Multiferroic KBiFe2O5
Authors: Subudhi, S
Subramanyam, B V R S
Alam, I
Patra, S
Mahanandia, P
Keywords: Multiferroic
Optical
Electrical
Issue Date: Dec-2019
Citation: 3rd International Conference on Solar Energy Photovoltaics(ICSEP-2019), KIIT University, Bhubaneswar, India, 19th-21st December 2019
Abstract: Brownmillerite structured multiferroic KBiFe2O5 (KBFO) is an upcoming promising photoactive material for next-generation optoelectronic applications due to its intrinsic polarization. Herein, we reported the preparation, optical and electrical properties of polycrystalline KBiFe2O5 compound. The phase confirmation of orthorhombic KBFO nanoparticles prepared by a simple sol-gel technique was investigated by X-ray diffraction (XRD) pattern. Whereas, the surface morphology of KBFO sample was identified by scanning electron microscopy (SEM). The band gap of KBFO was investigated by UV-Vis spectroscopy and found to be ∼1.65 eV which extends visible to infrared region compared to conventional perovskite-structured multiferroics. The optically active KBFO shows switchable photoresponse under visible light illumination. The evidence of photo responses in KBFO was explained on the basis of Current-Voltage characteristics. In summary, the multiferroicity in KBFO could be regarded as a potential candidate for the ferroelectric photovoltaic applications.
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/3474
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