Abstract:Light rare earth (LRE3+) ions‐doped Ta2O5 semiconductor material is synthesized via coprecipitation method with the bandgap energy of 3.94–4.05 eV and an orthorhombic geometry with 74.49 nm size. The rare earth‐modified Ta2O5 improves the photovoltaic functionality of the fully ambient perovskite solar cell by efficient extraction of electrons and blocking of the holes. The device achieved an efficiency of 13.36% with 63% of fill factor and negligible hysteresis index. LRE3+ triply doped Ta2O5 is used for the … Show more
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