Bis-N-Annulated Quaterrylene: An Approach to Processable Graphene Nanoribbons
摘要:
A new efficient synthetic method toward processable bis-N-annulated quaterrylene from easily available N-annulated perylene derivatives, which is conducted by DDQ/Sc(OTf)(3) oxidative coupling and ring fusion, is reported. In light of the good processability and the strong electron-donating ability, which is evidenced from the low oxidative potentials, bis-N-annulated quaterrylene is very promising for use as functional components in molecular devices.
<i>N</i>-Annulated Perylene-Based Hole Transporters for Perovskite Solar Cells: The Significant Influence of Lateral Substituents
作者:Yang Li、Rui Zhu、Junting Wang、Ze-Sheng Li、Niansheng Xu、Jidong Zhang、Peng Wang
DOI:10.1002/cssc.201702379
日期:2018.2.22
Perylene derivatives are a family of well‐known organic electron‐transporting materials with excellent photochemical and thermal stabilities, and have been widely used in various optoelectronic devices. In this work, two diphenylamine functionalized N‐annulated perylenes are reported as hole‐transporting materials (HTMs) for perovskite solar cells. Through joint theoretical and experimental studies
Turning on the biradical state of tetracyano-perylene and quaterrylenequinodimethanes by incorporation of additional thiophene rings
作者:Zebing Zeng、Sangsu Lee、José L. Zafra、Masatoshi Ishida、Nina Bao、Richard D. Webster、Juan T. López Navarrete、Jun Ding、Juan Casado、Dongho Kim、Jishan Wu
DOI:10.1039/c4sc00659c
日期:——
quantum interference device measurements and FT Raman spectroscopy, assisted by density functional theory calculations. Both compounds were found to be a singletbiradical in the ground state with a small singlet–triplet energy gap and the biradicalcharacter was enlarged by elongation of the π-conjugation length. Strong one-photon absorption and large two-photon absorption cross-sections were observed for
Tri-N-annulated Hexarylene: An Approach to Well-Defined Graphene Nanoribbons with Large Dipoles
作者:Yan Li、Jing Gao、Simone Di Motta、Fabrizia Negri、Zhaohui Wang
DOI:10.1021/ja100276x
日期:2010.3.31
We report a highly efficient synthetic methodology toward tri-N-annulated hexarylenes from easily available N-annulated perylenes, which is favored by the oxidative ring fusion driven by DDQ/Sc(OTf)(3). To assist the characterization of the new compounds, quantum-chemical calculations of structural and spectroscopic properties have been carried out for three oligomers of N-annulated rylenes. It is shown that tri-N-annulated hexarylene dyes display remarkably large dipole moments likely associated with the formation of H aggregates, as suggested by the marked concentration dependence of the measured UV vis spectra. It is suggested that the combination of pi-pi stacking interactions and dipole dipole interactions may favor the formation of highly ordered supramolecular structures, resulting in enhanced charge carrier mobilities.
Bis-N-Annulated Quaterrylene: An Approach to Processable Graphene Nanoribbons
作者:Yan Li、Zhaohui Wang
DOI:10.1021/ol9002064
日期:2009.3.19
A new efficient synthetic method toward processable bis-N-annulated quaterrylene from easily available N-annulated perylene derivatives, which is conducted by DDQ/Sc(OTf)(3) oxidative coupling and ring fusion, is reported. In light of the good processability and the strong electron-donating ability, which is evidenced from the low oxidative potentials, bis-N-annulated quaterrylene is very promising for use as functional components in molecular devices.
Conformational and Compositional Tuning of Phenanthrocarbazole-Based Dopant-Free Hole-Transport Polymers Boosting the Performance of Perovskite Solar Cells
作者:Zhaoyang Yao、Fuguo Zhang、Yaxiao Guo、Heng Wu、Lanlan He、Zhou Liu、Bin Cai、Yu Guo、Calvin J. Brett、Yuanyuan Li、Chinmaya Venugopal Srambickal、Xichuan Yang、Gang Chen、Jerker Widengren、Dianyi Liu、James M. Gardner、Lars Kloo、Licheng Sun
DOI:10.1021/jacs.0c08352
日期:2020.10.14
phenanthrocarbazole (PC)-based polymeric HTMs (PC1, PC2, and PC3) has been synthesized by inserting a PC unit into a polymericthiophene or selenophene chain with the aim of enhancing the π–π stacking of adjacent polymer chains and also to efficiently interact with the perovskite surface through the broad and planar conjugated backbone of the PC. Suitable energy levels, excellent thermostability, and humidity