Abstract A typical donor/accepter (D/A) interface made of fluorinated hexaazatrinaphthylene (HATANA-F6) and metal phthalocyanine (MPc) molecules has been studied by photoelectron spectroscopy. Planar shape copper phthalocyanine (CuPc) and non-planar titanyl phthalocyanine (TiOPc) molecules show contrast behavior of D/A interface charge transfer (CT), though the electron affinity of HATANA-F6 is smaller than the ionization potential (IP) of both MPcs. While the CuPc/HATNA-F6 interface has no clue for the CT, the TiOPc/HATNA-F6 has an indication of interface CT-induced band bending. Not only the difference in IP but also molecular shape and interface geometry at D/A contact largely affect the characteristics of CT state formation.

中文翻译：

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金属酞菁与氟化六氮杂三萘分子之间的界面电荷转移

摘要 通过光电子能谱研究了由氟化六氮杂三萘 (HATANA-F6) 和金属酞菁 (MPc) 分子构成的典型供体/受体 (D/A) 界面。平面形状的酞菁铜 (CuPc) 和非平面的钛氧基酞菁 (TiOPc) 分子表现出 D/A 界面电荷转移 (CT) 的对比行为，尽管 HATANA-F6 的电子亲和力小于两者的电离电位 (IP) MPcs。虽然 CuPc/HATNA-F6 界面对 CT 没有任何线索，但 TiOPc/HATNA-F6 有界面 CT 引起的带弯曲的迹象。不仅 IP 的差异，而且 D/A 接触处的分子形状和界面几何形状在很大程度上影响 CT 状态形成的特性。