Electron acceptors with varied linkages between perylene diimide and benzotrithiophene for efficient fullerene-free solar cells

Abstract

A non-fullerene acceptor, Fused-TriPDI with a rigid and planar structure shows a best power conversion efficiency of 6.19% with PTB7-Th, which is around three times higher than that with twisted TriPDI.

Rationally Designed Donor–Acceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efficient All‐Polymer Solar Cells

“…Figure S4 and Table S1 in the Supporting Information show similar ( d 100 ) lamellar spacing (≈23.1 Å) and π–π stacking spacing ( d 010 ) (≈4.1 Å) for P1, P2, P3, and P4 films, which agree well with the previously reported values for P1 films. [6h,17] The d 010 spacing of P1 (≈4.0 Å) was slightly smaller than the other polymers, attributed to the regular D–A sequence in the P1 polymer that produces a tighter packing structure. GIXS of the polymers in the blend films of donor and acceptor polymers showed a similar trend (Figure S5 and Table S2, Supporting Information).…”

Synthesis and Application of Rylene Imide Dyes as Organic Semiconducting Materials

“…Chen et al introduced 20 with three PDI moieties fused to a benzotrithiophene (BTT) moiety via Stille coupling and following oxidative cyclization. [22] Compound 20 was demonstrated as superior photovoltaic material, and the PCE of 20 was almostt hree times higher than that of the unfused analogue. Furthermore, Yu and co-workersd eveloped ap ropeller-shaped PDI derivative 21 by Suzukic ouplinga nd subsequentc yclization.…”

“…Asian J. 2018,13,[20][21][22][23][24][25][26][27][28][29][30] www.chemasianj.org lated PDI dyes via palladium-catalyzed SiÀCb ond formation. [37] Startingf rom 5a, 37 and 38 were obtained in one-pot reactions in high yield using Pd(OAc) 2 as the catalyst, as well as PCy 3 and KOAc as the ligand and base, respectively.T hese dyes exhibited red-shifted absorption and high fluorescence quantum yields.…”

“…Asian J. 2018,13,[20][21][22][23][24][25][26][27][28][29][30] www.chemasianj.org derivative( 55)b yu sing tetraphenyl methane as the central core. [49] The dihedrala ngle resulting from theoretical calculations was 110.178 between phenylg roup and connected PDI subunit and the PCE was 2.73 %f or devices based on 55.…”

“…The commonbuilding blocksfor PDI-based functional molecules.Chem. Asian J 2018,13,[20][21][22][23][24][26][27][28][29][30] www.chemasianj.org…”