Polar‑Twisted Electron‑Transport Layer Simultaneously Breaks Efficiency‑Flexibility‑Cost Limits in Organic Solar Cells (IMAGE)

Shanghai Jiao Tong University Journal Center

Polar‑Twisted Electron‑Transport Layer Simultaneously Breaks Efficiency‑Flexibility‑Cost Limits in Organic Solar Cells

Caption

  • A polar-twisted perylene diimide electron-transport layers framework enables additive-free alcohol processing, suppressed over-crystallization, and improved oxidative stability.
  • H75-DMA delivers over 20% efficiency in binary organic solar cells while retaining ~ 80% of its initial power conversion efficiency after 384 h air storage.
  • H75-DMA enhances flexible and semitransparent organic solar cells and enables Ag-to-Cu cathode substitution with 18.65% efficiency, highlighting device-level cost effectiveness while approaching Ag-based performance.

Credit

Thi Le Huyen Mai, Zhe Sun*, Won Jung Kang, Seunglok Lee, Taek-Soo Kim, Changduk Yang*.

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CC BY-NC-ND

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