Development of rigidity-controlled terpolymer donors for high-performance and mechanically robust organic solar cells

Abstract

Organic solar cells (OSCs) are potential power sources for wearable electronic devices. However, the mechanical stretchability of active materials is not yet sufficient; one of the main reasons is the...

Polymer Acceptor with Hydrogen-Bonding Functionality for Efficient and Mechanically Robust Ternary Organic Solar Cells

“…The PM6:Y6-BO binary reference showed a PCE of 15.41%, with open-circuit voltage ( V oc ), short-circuit current density ( J sc ), and fill factor (FF) values of 0.81 V, 25.94 mA cm –2 , and 0.73, respectively. This PCE value is similar to previously reported results . Interestingly, the PM6:Y6-BO blend system with incorporation of 10 wt % N2200-ThyDap exhibited an enhanced PCE of 16.36% with a higher J sc value of 27.56 mA cm –2 .…”

“…This PCE value is similar to previously reported results. 60 Interestingly, the PM6:Y6-BO blend system with incorporation of 10 wt % N2200-ThyDap exhibited an enhanced PCE of 16.36% with a higher J sc value of 27.56 mA cm −2 . However, the performance of the PM6:Y6-BO:N2200 10 wt % blend exhibited reduced PCE and J sc with values of 14.65% and 25.38 mA cm −2 , respectively.…”

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm2 active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

“…To investigate the charge carrier dynamics of PM6:BTP‐eC11 and PBTPttBD polymer:BTP‐eC11‐based PSCs, the maximum exciton generation rate ( G max ) and exciton dissociation probability ( P (E,T)) were measured using previously reported methods 35,43‐45 . Figure 3C shows the dependence of photocurrent density ( J ph ) on effective voltage ( V eff ).…”

“…To investigate the charge carrier dynamics of PM6: BTP-eC11 and PBTPttBD polymer:BTP-eC11-based PSCs, the maximum exciton generation rate (G max ) and exciton dissociation probability (P(E,T)) were measured using previously reported methods. 35,[43][44][45] Figure 3C shows the dependence of photocurrent density (J ph ) on effective voltage (V eff ). The G max value can be calculated from the equation of J sat = qG max L, where J sat is the saturation current density at V eff = 2 V, q is the electronic charge, and L is the thickness of active layer.…”

Ultra Robust and Highly Efficient Flexible Organic Solar Cells with Over 18 % Efficiency Realized by Incorporating a Linker Dimerized Acceptor

“…Consequently, the brittleness of NF-SMAs is reduced, and the intrinsic mechanical ductility is enhanced. [30][31] in the case of For linker NF-SMAs, extending the molecular chains may restrict the motion of the monomer, affecting molecular size and intermolecular packing properties. [25,[32][33] Moreover, oligomeric acceptors suppress the molecular diffusion of NF-SMAs, thereby stabilizing morphology of active layer, and resulting in long-term stability.…”