Molecular planarity enhancing method of non-spiral organic small molecule hole transport material

The invention discloses a molecular planarity enhancing method of a non-spiral organic small molecule hole transport material, and relates to the technical field of photoelectric materials. Short-range intramolecular interaction is introduced between adjacent groups in molecules of non-spiral organic small molecules. By introducing short-range intramolecular interaction into molecules, the dihedral angle of adjacent groups in the molecules is reduced, the molecular planarity is enhanced, and compared with molecules without short-range intramolecular interaction, pi pi-pi accumulation between the molecules is effectively enhanced, and the hole mobility is improved. 本发明公开了一种非螺型有机小分子空穴传输材料的分子平面性增强方法，涉及光电材料技术领域，是在非螺型有机小分子的分子内相邻基团间引入近程分子内相互作用。本发明通过在分子内引入近程分子内相互作用，减小分子中相邻基团的二面角，增强分子平面性，相较于无近程分子内相互作用的分子，有效增强分子间的π-π堆积，提高空穴迁移率。