Synthetic Route of 89-01-0, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 89-01-0, Name is Pyrazine-2,3-dicarboxylic acid, SMILES is O=C(C1=NC=CN=C1C(O)=O)O, belongs to Pyrazines compound. In a article, author is Guo, Huanxin, introduce new discover of the category.
A Coplanar pi-Extended Quinoxaline Based Hole-Transporting Material Enabling over 21 % Efficiency for Dopant-Free Perovskite Solar Cells
Developing dopant-free hole transporting materials (HTMs) is of vital importance for addressing the notorious stability issue of perovskite solar cells (PSCs). However, efficient dopant-free HTMs are scarce. Herein, we improve the performance of dopant-free HTMs featuring with a quinoxaline core via rational pi-extension. Upon incorporating rotatable or chemically fixed thienyl substitutes on the pyrazine ring, the resulting molecular HTMs TQ3 and TQ4 show completely different molecular arrangement as well as charge transporting capabilities. Comparing with TQ3, the coplanar pi-extended quinoxaline based TQ4 endows enriched intermolecular interactions and stronger pi-pi stacking, thus achieving a higher hole mobility of 2.08×10(-4) cm(2) V-1 s(-1). It also shows matched energy levels and high thermal stability for application in PSCs. Planar n-i-p structured PSCs employing dopant-free TQ4 as HTM exhibits power conversion efficiency (PCE) over 21 % with excellent long-term stability.
Synthetic Route of 89-01-0, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 89-01-0 is helpful to your research.