化学
共价键
光谱学
扩散
化学物理
激发态
薄膜
共价有机骨架
光化学
纳米技术
有机化学
材料科学
原子物理学
物理
热力学
量子力学
作者
Laura Spies,Alexander Biewald,L. Fuchs,Konrad Merkel,Marcello Righetto,Zehua Xu,Roman Guntermann,Rik Hooijer,Laura M. Herz,Frank Ortmann,Jenny Schneider,Thomas Bein,Achim Hartschuh
摘要
Covalent organic frameworks (COFs), crystalline and porous conjugated structures, are of great interest for sustainable energy applications. Organic building blocks in COFs with suitable electronic properties can feature strong optical absorption, whereas the extended crystalline network can establish a band structure enabling long-range coherent transport. This peculiar combination of both molecular and solid-state materials properties makes COFs an interesting platform to study and ultimately utilize photoexcited charge carrier diffusion. Herein, we investigated the charge carrier diffusion in a two-dimensional COF thin film generated through condensation of the building blocks benzodithiophene-dialdehyde (BDT) and
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