Binary alloy of functionalized small-molecule acceptors with the A–DA′D–A structure for ternary-blend photovoltaics displaying high open-circuit voltages and efficiencies

Abstract

Binary acceptors alloy based on two A´´–D´A´D´–A´´small-molecule acceptors having the same core structure and side chains but different conjugation end groups—BTPO-NF and BTPO-F—were synthesized and blended with the polymer PM6...

High-Performance Pseudo-Bilayer Organic Solar Cells Enabled by Sequential Deposition of D18/Y6 Chloroform Solution

“…To make a thorough inquiry into the molecular stacking and orientation properties of the three films, grazing-incidence wide-angle X-ray scattering (GIWAXS) was carried out. The 2D GIWAXS patterns of D18 and Y6 pure films and the D18:Y6, D18/Y6, and Y6/D18 films are displayed in Figure , with the corresponding out-of-plane (OOP) and in-plane (IP) line cuts shown in Figure e.…”

Triphenylamine side chain enabled polybenzodithiophene wide-bandgap donors for efficient organic solar cells

“…To further investigate the charge transport behaviors of the two PC61BM and Y6 acceptors in the optimized devices, the hole ( μ h ) and electron ( μ e ) mobilities of these blend films were characterized by adopting the space charge limited current (SCLC) method 43,44 (Fig. 4a and b) and the corresponding mobility data are summarized in Table 2.…”

Efficient ternary organic photovoltaic device with a non-halogenated solvent via synergistic inhibiting charge recombination and regulating morphology

“…However, most effective ternary devices are based on compatible non-fullerene acceptors. [37][38][39][40][41][42][43][44] Ternary systems with two mutually compatible donors have rarely been investigated owing to the lack of suitable materials. The preparation of ternary OPV devices using a terpolymer donor as the third component provides a promising strategy.…”