A facile strategy for third-component selection in non-fullerene acceptor-based ternary organic solar cells

Abstract

Ternary strategy has been proved to be an efficient approach to improve the power conversion efficiency (PCE) of organic solar cells (OSCs). However, little attention has been paid to deriving...

Insulating Polymers as Additives to Bulk‐Heterojunction Organic Solar Cells: The Effect of Miscibility

“…This is much higher than those of other blended polymer systems, such as the χ value of PM6/BTP-eC9 blends was determined as 0.505k. [20] GIWAXS, AFM and contact angle measurements reveal that PS/SBS has poor miscibility with PM6 : BTP-BO-4Cl blend, resulting in self-aggregation tendency of PS/SBS in blend thin films. These large domains would act as electron traps in the OSC devices, decreasing the electron mobility of the blended films.…”

Molecular optimization of incorporating pyran fused acceptor–donor–acceptor type acceptors enables over 15% efficiency in organic solar cells

“…32–40 However, so far, OSCs surpassing 18% power conversion efficiency (PCE) have been almost entirely based on Y6 and its analogues. 41–44 Besides the relatively ossified structures of the Y6 system, it is highly possible that lots of other distinctive A–D–A skeleton-based NFAs could achieve high-efficiency OSCs. 31,34,45 Therefore, it is very necessary to explore other types of NFAs with the aim of achieving state-of-the-art OSCs and beyond.…”

Eliminating the Detrimental Effect of Secondary Doping on PEDOT : PSS Hole Transporting Material Performance

“…Bulk heterojunction (BHJ) organic solar cells (OSCs) have undergone an impressive progress within the last few years due to the significant innovations in non-fullerene acceptors and device craft. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Over 18 % power conversion efficiency (PCE) and long-term device stability have been recorded in multiple cases. [5][6][7] Apart from the development of acceptors, interface engineering upon electrodes, that is, developing hole/electron transporting materials (HTMs/ETMs), is also a most effective strategy to further enhance the performance of OSCs to a new level.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Over 18 % power conversion efficiency (PCE) and long-term device stability have been recorded in multiple cases. [5][6][7] Apart from the development of acceptors, interface engineering upon electrodes, that is, developing hole/electron transporting materials (HTMs/ETMs), is also a most effective strategy to further enhance the performance of OSCs to a new level. [16][17][18][19][20][21][22][23][24][25][26][27] As for ETM development, multiple types of materials including metal oxides, small-molecule organic compounds, and nonconjugated/conjugated polymers endowed high performance for OSCs.…”