Experimental study demonstrates efficient self-powered blue-light detection in anisole-engineered perovskites, highlighting a practical route toward stable optoelectronics.
We report anisole‐assisted precursor engineering to realize high‐performance wide‐bandgap perovskite photodiodes for self‐powered blue‐light detection. Incorporating anisole as an internal antisolvent and applying a brief anisole bathing post‐treatment yield pinhole‐free films with enlarged grains. Under self‐powered operation (0 V), the devices achieve a low dark current density of 4.89 nA cm −2 and an external quantum efficiency (EQE) of 78.11% at 380 nm, corresponding to a responsivity of 0.27 A W −1 and a detectivity of 6.77 × 10 12 Jones. The photodiodes maintain over 97% of their initial EQE after 1000 h of storage without encapsulation. These results highlight a practical route toward stable, self‐powered perovskite photodiodes with high sensitivity in the 350–490 nm range.
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Kim et al. (2026) studied this question.
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