to the degree of oxidation, it was suggested that the charge distribution of the charged states gradually change so as to reduce the electrostatic repulsion between increased charges on the basis of the spectroelectrochemical studies. Moreover, the stability of the generated radicalcations and the spindistribution in their radicalcations were confirmed by the ESR measurements.
Charge Transfer Emission in Oligotriarylamine–Triarylborane Compounds
作者:Annabell G. Bonn、Oliver S. Wenger
DOI:10.1021/acs.joc.5b00416
日期:2015.4.17
is not more pronounced. The attempted increase of the acceptor strength by substitution of the acceptor moiety by two (instead of one) dimesitylboron groups leads to a drastic decrease of emission quantum yields. On the basis of these results, our purely experimental study provides fundamental guidelines for the design of new triarylamine–triarylborane donor–acceptor compounds with favorable charge-transfer
However, the complex synthesis process and the high synthesis cost of Spiro-OMeTAD severely limit the commercialization of this material. In this work, two economical methoxyaniline-substituted dibenzofuranderivatives, BF-002 and BF-003, are synthesized and successfully used as hole-transport materials in perovskite solar cells (PSCs). The important properties including light absorption, thermal stability