Fig. 2: The molecular structure and PL properties of INA upon compression and decompression. | Nature Communications

Fig. 2: The molecular structure and PL properties of INA upon compression and decompression.

From: Controllable multicolor emission from initially non-emissive organic molecules by pressure engineering

Fig. 2

a Crystal structure of INA in the unit cell dimension of 3 × 3 × 1. The linear packing modes with tight dual hydrogen bonds of O − H ∙ ∙ ∙ N and C − H ∙ ∙ ∙ O are observed in the INA molecular array. The pink, blue, purple, and cyan spheres represent O, C, N, and H atoms, respectively. b A 3D colormap showing the pressure-dependent PL intensity and wavelength of INA. c Pressure-dependent PL intensity of INA. d PL spectra of INA before and after different pressure treatments. e Optical images of INA at 1 atm, 10.4 GPa, and after different pressure treatments. f The CIE chromaticity diagram of INA at 10.4 GPa and after different pressure treatments. g Normalized PL decay curves at R-20.0 GPa. Source data are provided as a Source Data file.

Back to article page