The internet of things revolution requires efficient, easy-to-integrate energy harvesting. Here, we report indoor power generation by flexible perovskite solar cells (PSCs) manufactured on roll-to-roll indium-doped tin oxide (ITO)-coated ultra-thin flexible glass (FG) substrates with notable transmittance (>80%), sheet resistance (13 Ω/square), and bendability, surpassing 1,600 bending procedures at 20.5-mm curvature. Optimized PSCs on FG incorporate a mesoporous scaffold over SnO₂ compact layers delivering efficiencies of 20.6% (16.7 μW⋅cm⁻² power density) and 22.6% (35.0 μW⋅cm⁻²) under 200 and 400 lx LED illumination, respectively. These represent, to the best of our knowledge, the highest reported for any indoor flexible solar cell technology, surpassing by a 60%–90% margin the prior best-performing flexible PSCs. Specific powers (W/g) delivered by these lightweight cells are 40%–55% higher than their counterparts on polyethylene terephthalate (PET) films and an order of magnitude greater than those on rigid glass, highlighting the potential of flexible FG-PSCs as a key enabling technology for powering indoor electronics of the future.

物联网革命需要高效，易于集成的能量收集。在此，我们报告了在具有明显透射率（> 80％）的卷对卷掺铟氧化锡（ITO）涂层超薄柔性玻璃（FG）基板上制造的柔性钙钛矿太阳能电池（PSC）产生的室内发电，薄层电阻（13Ω/平方）和可弯曲性，在20.5 mm曲率下超过1600个弯曲步骤。上FG优化的PSC并入孔支架上的SnO ₂致密层的20.6％（16.7μW⋅cm递送效率^-2功率密度）和22.6％（35.0μW⋅cm ^-2）分别在200和400 lx LED照明下。据我们所知，这些代表了所有室内柔性太阳能电池技术中报告的最高值，比之前表现最好的柔性PSC超出了60％–90％。这些轻质电池的比功率（W / g）比聚对苯二甲酸乙二醇酯（PET）薄膜的比功率高40％-55％，比刚性玻璃大一个数量级，这突出了柔性FG-PSC的潜力一种为未来室内电子设备供电的关键使能技术。