Quantum dot (QD) provides a versatile platform for high-throughput processing of semiconductors for large-area optoelectronic applications. Unfortunately, the QD solar cell is hampered by the time-consuming layer-by-layer process, a major challenge in manufacturing printable devices. Here we demonstrate a sequential acylation-coordination protocol including amine-assisted ligand removal and Lewis base-coordinated surface restoration to synthesize conductive APbI₃ (A = formamidinium (FA), Cs or methylammonium) colloidal perovskite QD (PeQD) inks that enable one-step PeQD film deposition without additional solid-state ligand exchange. The resultant PeQD film displays uniform morphology with elevated electronic coupling, more ordered structure and homogeneous energy landscape. Narrow-bandgap FAPbI₃ PeQD-based solar cells achieve a champion efficiency of 16.61% (certified 16.20%), exceeding the values obtained with other QD inks and layer-by-layer processes. The conductive PeQD inks are compatible with large-area device (9 × 9 cm²) fabrication using the blade-coating technique with a speed up to 50 mm s⁻¹.

量子点 (QD) 为大面积光电应用的半导体高通量处理提供了一个多功能平台。不幸的是，量子点太阳能电池受到耗时的逐层工艺的阻碍，这是制造可印刷设备的主要挑战。在这里，我们展示了一种连续的酰化配位方案，包括胺辅助配体去除和路易斯碱配位表面修复，以合成导电 APbI ₃ （A = 甲脒 (FA)、Cs 或甲基铵）胶体钙钛矿 QD (PeQD) 墨水，该墨水能够实现单-步骤PeQD薄膜沉积无需额外的固态配体交换。所得的 PeQD 薄膜表现出均匀的形貌、增强的电子耦合、更有序的结构和均匀的能量景观。基于窄带隙 FAPbI ₃ PeQD 的太阳能电池实现了 16.61% 的冠军效率（认证为 16.20%），超过了使用其他 QD 墨水和逐层工艺获得的值。导电PeQD墨水与使用刮刀涂布技术的大面积器件（9 × 9 cm ² ）制造兼容，速度高达50 mm s ^-1 。