Strain and Hückel Aromaticity: Driving Forces for a Promising New Generation of Electron Acceptors in Organic Electronics
作者:F. G. Brunetti、X. Gong、M. Tong、A. J. Heeger、Fred Wudl
DOI:10.1002/anie.200905117
日期:2010.1.12
Straining at the leash: The main features of electron‐accepting materials with a 9,9′‐bifluorenylidene backbone are strain relief and a gain in aromaticity. These dimers (see picture) exhibit absorption near the red spectral region (ca. 600 nm) and HOMO (5.58–5.06 eV) and LUMO (3.37–3.09 eV) energy levels, which, together with high solubility and thermal stability render these materials attractive
牵引力:具有9,9'-联芴基骨架的电子接受材料的主要特征是应力消除和芳香性的提高。这些二聚体(参见图片)在红色光谱区域(约600 nm)和HOMO(5.58–5.06 eV)和LUMO(3.37–3.09 eV)的能级附近表现出吸收,这与高溶解度和热稳定性一起使这些材料块状异质结(BHJ)太阳能电池的有吸引力的受体。