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- W4383905190 abstract "Designing an optoelectronic device requires adequate information about the photo-response of the active material. Here, we have studied the optical and optoelectrical properties of the solution-processed inverse spinel structured CoFe2O4 (CFO) thin film and correlated it with the photovoltaic performance of CFO active material-based all-oxide solar cell. The optical absorption spectra of spin-coated CFO films show the existence of a direct bandgap of 2.64 eV with a maximum absorption coefficient >105/cm. A simple spin-coated CFO/TiO2p–n heterojunction shows an open circuit voltage of over 0.95 V under 1 sun illumination. However, photo-induced oxygen vacancy formation and the desorption of surface oxygen lead to additional electron generation and hole capture, respectively, in the p-type CFO, resulting in an anomalous photocurrent decay under white light illumination, resulting in a low short-circuit current density. This study provides a fundamental understanding of photo-carrier dynamics in solution-processed CFO thin films and apprehends the photophysics of designing spinel-ferrite-based optoelectronic devices." @default.
- W4383905190 created "2023-07-12" @default.
- W4383905190 creator A5038614491 @default.
- W4383905190 creator A5057835323 @default.
- W4383905190 date "2023-07-10" @default.
- W4383905190 modified "2023-09-25" @default.
- W4383905190 title "Photo-induced oxygen vacancy formation and anomalous photoconductivity in solution-processed CoFe2O4 thin films" @default.
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- W4383905190 doi "https://doi.org/10.1063/5.0159085" @default.
- W4383905190 hasPublicationYear "2023" @default.
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