To achieve a reproducible perovskite film with full surface coverage, Zn²⁺ ions are introduced to partially replace Pb²⁺ ions in this work. Results indicate that the crystallization and formation of CH₃NH₃Pb_1-xZn_xI₃ film with micrometer grain size could be changed by the micro-strain for lattice shrink. The bandgap and optical properties of the perovskite films are improved due to trace amounts of Zn²⁺ ion dopant. More importantly, the solar cell device based on the Zn-doped perovskite film shows an increment in photocurrent of 21.13 mA cm^-2 and power conversion efficiency (PCE) of 16.6%. Electrochemical impedance spectroscopy (EIS) measurements reflect that the charge recombination resistance and charge accumulation capacitance of devices based on MAPb_0.98Zn_0.02I₃ film are lower than those of the control device. However, present results also implied that MAPb1_-xZn_xI₃ film is still necessary to be extensively developed and optimized for further enhancing the device photovoltaic performance.

为了获得具有完整表面覆盖度的可再现钙钛矿薄膜，在这项工作中引入了Zn ²⁺离子以部分替代Pb ²⁺离子。结果表明，微米尺寸的CH ₃ NH ₃ Pb _1-x Zn _x I ₃薄膜的结晶和形成可以通过晶格收缩的微应变来改变。由于痕量的Zn ²⁺离子掺杂剂，钙钛矿薄膜的带隙和光学性能得到改善。更重要的是，基于掺杂锌的钙钛矿薄膜的太阳能电池器件显示出的光电流增加了21.13 mA cm ^-2功率转换效率（PCE）为16.6％。电化学阻抗谱（EIS）测量反映出，基于MAPb _0.98 Zn _0.02 I ₃膜的器件的电荷复合电阻和电荷累积电容低于控制器件。但是，目前的结果还暗示，仍然需要广泛开发和优化MAPb1 _-x Zn _x I ₃膜，以进一步增强器件的光伏性能。