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Evidence of Cation Symmetry Reduction Induced Bulk Photovoltaic Effect in Metal-Free Perovskite for Efficient Self-Powered X-Ray Detection

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Metal-free perovskite (MFP) X-ray detectors have attracted attention due to biocompatibility and synthesizability. However, the necessity of high voltages for MFP X-ray detectors affects stability and safety. Although, the bulk photovoltaic effect (BPVE) with ... ...