化学
多环芳烃
兴奋剂
碳氢化合物
电化学
多环化合物
有机化学
纳米技术
沉积(地质)
菲
芘
电极
分子
光电子学
物理化学
古生物学
材料科学
物理
生物
沉积物
作者
Cheng Zeng,Bohan Wang,Huanhuan Zhang,Mingxiao Sun,Liangbin Huang,Yanwei Gu,Zijie Qiu,Klaus Müllen,Cheng Gu,Yuguang Ma
摘要
Polycyclic aromatic hydrocarbons (PAHs) are employed as organic semiconductors because their delocalized π-electron systems and strong intermolecular interactions endow them with an exceptional charge-transport ability. However, the deposition of PAHs from solution onto high-quality thin films is often difficult. Here, we report a one-step electrochemical method to synthesize and deposit unsubstituted PAHs, starting from twisted oligophenyl precursors. The cyclodehydrogenated products were analyzed by matrix-assisted laser-desorption time-of-flight mass spectrometry as well as Fourier transform infrared and Raman spectroscopy. With this electrosynthesis and deposition, the PAHs stack into compact and ordered supramolecular structures along the π-π direction to form thin films with controllable thicknesses and doping levels. The direct fabrication of PAH films opens new pathways toward PAH-based optoelectronic devices.
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