Fig. 3From: Metal Electrode-Free Halide Perovskite-Based Flexible Ultraviolet-C Photodetector with Large Areaa Fitting of the bend test; b The device under test condition; c The performance of the photodetector after different bending cycles (0–200 cycles) at bending angle of 40°; d Absorbance spectra; and e Photoluminescence spectra of the perovskite films on Willow Glass substrate before and after the 200 bending cyclesBack to article page