Fig. 6From: Exploring the Intrinsic Piezofluorochromic Mechanism of TPE-An by STS Technique a The relationship among the red-shift of PL peak, the HOMO-LUMO gap variation, and the applied pressure variation. The inset is the surface deformation of TPE-An film suffered from the electrostatic force in STS experiments. b A schematic illustration of the piezofluorochromic behaviors of TPE-An materials by the band modelBack to article page