一种基于风车格结构的有效降低内重组能的咔唑类格子化分子

The charge mobility of organic semiconductor materials has been a research hotspot. A new type of grid-like organic semiconductor material was designed and calculated through density functional theory(DFT). The structures of windmill-like grid composed of four carbazoles(GZP) were discussed in detail, as well as their thermodynamic and electronic properties. The results show that they have such a regular structure that may be easily synthesized in the laboratory. The boat-like GZP1(0 kJ/mol) is more stable than the ship-type GZP2(122.88 kJ/mol). The internal and external diameters of GZP1 are 0.298 and 1.079 nm, respectively. Especially, the internal recombination energy of GZP1 is very low, so that it can be used as a good charge transport material.