Fig. 3: Theoretical calculations of DFT and film mechanics.
From: Light-responsive self-strained organic semiconductor for large flexible OFET sensing array

a DFT energy schematic diagram under UV irradiation. E indicates molecular energy. b DFT molecular binding energy diagram. The insets are the corresponding packing structures. c The calculated distributions of the strain and stress in the long-axis direction (x-axis) in the organic film. The white arrow indicates the direction of stress decay. The aspect ratio of the film section is simplified to 8000:800. Stress, the internal forces that neighbour particles of a continuous material exert on each other. Strain, the measure of material deformation. Both stress and strain are calculated in the x dimension.