LAUSR

Transparent and flexible electronic devices are highly desired to meet the great demand for next-generation devices with lightweight, flexible and portable. Transparent conducting oxides (TCOs), such as indium-tin oxide (ITO), serve as fundamental components for the design of transparent and flexible electronic devices. However, indium is rare and expensive. Herein, we report the fabrication of low-cost perovskite SrVO3 TCO films on transparent and flexible mica substrates, and further demonstrate its utilization as a TCO electrode for building a transparent, flexible and self-powered perovskite photodetector. Superior stable optical transparency and electrical conductivity retain in SrVO3 after bending up to 105 cycles. Without an external power source, the constructed all-perovskite photodetector exhibits a high responsivity (42.5 mA W-1), fast response time (3.09/1.23 ms), as well as an excellent flexibility and bending stability after dozens of cycles of bending at the extremely 90 bending angle. Our results demonstrate that low-cost and structural compatible transition metal-based perovskite oxides, like SrVO3, as TCO electrodes have huge potential for building high-performance transparent, flexible and portable smart electronics.