我们通过KrF激光辐照在化学计量（100）SrTiO3单晶上实现了可控的金属行为，这在很大程度上取决于真空度和激光能量密度。 此外，这种金属传导是由缺氧引起的，可以通过光照和静电门控场来操纵。 激光辐照的SrTiO3表现出敏感的持久性光响应，对于360 nm光线，其在20 K时电阻的相对变化约为45％。 另外，也可以通过正（负）后向门将传导调制为较低（较高）状态。 我们的结果突出了调整氧化物电性能的可能性。

Modifying the surface of poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) with toluene during the high-speed spin-coating process of dimethylformamide considerably improves the wettability and morphology of PTAA and results in improvement of the crystallinity and absorption of perovskite film. The hole mobility and ohm contact have also been improved accordingly. Combined with these improved parameters, inverted perovskite solar cells with high efficiency of 19.13% and long-term stability