Fig. 5
From: Layer-edge device of two-dimensional hybrid perovskites

Humidity sensitivity. a Dark current in dry air and with 57% humidity air in 2D perovskite layer-edge 0° device. b Humidity sensitivity and response time for devices on layer-edge 0° surface with different n, in-plane surface in 2D perovskites with n = 1, and (110) surface in 3D perovskites. c Schematic diagram of water absorption in layer-edge surface of 2D perovskites