一种新的n型有机半导体,即C12-4CldiPBI,是通过一种简单而便捷的方法合成的。通过溶剂蒸汽扩散策略可以轻松地生长C12-4CldiPBI单晶带。基于单个带的有机场效应晶体管是通过一种称为“ Au条纹掩模”的新技术制造的。所有器件均表现出出色的n型晶体管性能,且磁滞可忽略不计,并且所有器件均具有超过1.0 cm 2 V -1 s -1的电子迁移率,且具有4.65 cm 2 V -1 s -1的最高迁移率。而且,这些装置表现出优异的空气稳定性。
Perpendicularly entangled perylene diimides for high performance electron transport materials
作者:Linxiao Hao、Chengyi Xiao、Jing Zhang、Wei Jiang、Wei Xu、Zhaohui Wang
DOI:10.1039/c3tc31912a
日期:——
A new family of perpendicularly entangled perylene diimides and di(perylene diimide) dimers featuring double linkage was synthesized via copper-mediated Ullmann coupling. The highly twisting structures endow them remarkable electron transport characteristics with comparable mobility reaching 0.16 cm2 V−1 s−1 and an on/off current ratio up to 5.0 × 106 in air for PDI dimer based solution-processed OTFTs. While diPDI dimers with expanded conjugated core proved their competing electron mobilities as PDI dimers, especially for their low threshold voltage and good air stability.
Hybrid Rylene Arrays via Combination of Stille Coupling and C–H Transformation as High-Performance Electron Transport Materials
作者:Wan Yue、Aifeng Lv、Jing Gao、Wei Jiang、Linxiao Hao、Cheng Li、Yan Li、Lauren E. Polander、Stephen Barlow、Wenping Hu、Simone Di Motta、Fabrizia Negri、Seth R. Marder、Zhaohui Wang
DOI:10.1021/ja301184r
日期:2012.4.4
Hybrid rylene arrays have been prepared via a combination of Stile coupling and C-H transformation. The ability to extend the it system along the equatorial axis of rylenes not only leads to broadened light absorption but also increases the electron affinity, which can facilitate electron injection and transport with ambient stability.
A Metallofullerene Electron Donor that Powers an Efficient Spin Flip in a Linear Electron Donor–Acceptor Conjugate
作者:Marc Rudolf、Lai Feng、Zdenek Slanina、Takeshi Akasaka、Shigeru Nagase、Dirk M. Guldi
DOI:10.1021/ja403763e
日期:2013.7.31
The dream target of artificial photosynthesis is the realization of long-lived radical ion pair states that power catalytic centers and, consequently, the production of solar fuels. Notably, magnetic field effects, especially internal magnetic field effects, are rarely employed in this context. Here, we report on a linear Lu3N@I-h-C-80 PDI electron donor acceptor conjugate, in which the presence of the Lu3N duster exerts an appreciable electron nuclear hyperfine coupling on the charge transfer dynamics. As such, a fairly efficient radical ion pair intersystem crossing converts the initially formed singlet radical ion pair state, (1)[(Lu3N@I-h-C-80)(center dot+)-PDI center dot-], to the corresponding triplet radical ion pair state, (3)[(Lu3N@I-h-C-80)(center dot+)-PDI center dot-]. Most notably, the radical ion pair state lifetime of the latter is nearly 1000 times longer than that of the former.