Layered Defect‑Filling co‑Assembled Carbazole‑Based SAMs Deliver 20% Organic Solar Cells and 17% Mini‑Modules (IMAGE)

Shanghai Jiao Tong University Journal Center

Layered Defect‑Filling co‑Assembled Carbazole‑Based SAMs Deliver 20% Organic Solar Cells and 17% Mini‑Modules

Caption

  • A sequential co-assembly of 2PACz and 2Cl-4PACz forms densely packed, electronically coupled SAM-based hole-transport layers.
  • The bottom 2PACz-rich monolayer tunes the indium tin oxide work function, while the upper 2Cl-4PACz layer fills interfacial voids, enhances packing, improves coupling with donor polymers, and promotes favorable vertical phase separation.
  • This cooperative interface engineering boosts charge transport and suppresses recombination, enabling organic solar cells to achieve a 20.1% power conversion efficiency and 17.0% mini-modules.

Credit

Jingnan Wu*, Fengbo Sun, Leandro R. Franco, Qiaonan Chen*, Xinxin Xia, Ruike Zhou, Zhuang Li, Mateus Bergami, Pablo Hermosilla Fernandez, C. Moyses Araujo, Biao Xiao, Xunchang Wang, Donghong Yu, Maojie Zhang, Renqiang Yang*, Ergang Wang*.

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.