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Enhancement of photoresponse and photovoltaic properties in KBiFe2O5/BiFeO3 bilayer thin films
Ist Teil von
Current applied physics, 2024-08, Vol.64, p.74-81
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2024
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
In this report, the performance of a new photovoltaic device configuration in which bilayer KBiFe2O5 (KBFO)/BiFeO3 (BFO) as absorber materials have been investigated and compared with the single active layer-based devices of BFO and KBFO. The obtained short-circuit current density of 58.81 μAcm−2, open-circuit voltage of 0.65 V, and power conversion efficiency of 0.014 % for the complete photovoltaic device glass/FTO/KBFO/BFO/Ag are comparatively higher than that of glass/FTO/BFO/Ag and glass/FTO/KBFO/Ag devices. It has been observed that the active bilayer KBFO/BFO shows switchable photoresponse with respect to positive and negative polarities. This work may offer the procedures for further optimizing the photo absorber layer, thereby improving the performances of multiferroic-based devices for ferroelectric photovoltaic applications.
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•Fabrication of a new photovoltaic device using a bilayer configuration of KBiFe2O5 (KBFO)/BiFeO3 (BFO) as photo absorber via simple chemical deposition techniques.•Comparision of the photoresponse and photovoltaic performances of the bilayer device with single active layer-based devices.•Enhancement in photo absoption energy, short-circuit current density, open-circuit voltage, and power conversion efficiency.•Observation of a switchable photovoltaic response with respect to reverse poling directions.