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Title: Investigation of photovoltaic response in brownmillerite multiferroic KBiFe2O5 thin film
Authors: Subudhi, Subhasri
Mandal, Manoranjan
Patra, Santosini
Nayak, Alok Kumar
Subramanyam, BVRS
Alam, Injamul
Mahanandia, Pitamber
Keywords: photovoltaic response
photovoltaic response
thin film
Issue Date: Dec-2022
Citation: International Symposium on Semiconductor Materials and Devices-2022 (ISSMD), KIIT University, Bhubaneswar, 16th – 18th December 2022
Abstract: Brownmillerite structured Multiferroic KBiFe2O5 (KBFO) is a promising photoactive material for subsequent optoelectronic applications due to its smaller bandgap and intrinsic polarization. Herein, we reported the preparation, optical and electrical properties of the KBFO thin film. The phase confirmation of KBFO thin film prepared by a simple spin coating technique was characterized by X-ray diffraction (XRD) pattern. The surface morphology as well as thickness of the KBFO thin film deposited on FTO coated glass was identified by scanning electron microscopy (SEM). The bandgap of KBFO film was investigated by UV-Vis spectroscopy which extends visible to the infrared region compared to conventional perovskitestructured ultiferroic. The evidence of photovoltaic responses in KBFO device was explained based on Current-Voltage characteristics under dark as well as visible light illumination. In summary, the intrinsic polarization and photo absorption properties in KBFO could be regarded the material as a suitable candidate for ferroelectric photovoltaic applications
Description: Copyright belongs to proceeding publisher
Appears in Collections:Conference Papers

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