Ma Mengen, Zhang Cuiling, Ma Yujiao, Li Weile, Wang Yao, Wu Shaohang, Liu Chong, Mai Yaohua
Institute of New Energy Technology, College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou, 510632, People's Republic of China.
Key Laboratory of New Semiconductors and Devices of Guangdong Higher Education Institutes, Jinan University, Guangzhou, 510632, People's Republic of China.
Nanomicro Lett. 2024 Oct 15;17(1):39. doi: 10.1007/s40820-024-01538-7.
Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-coating method. In this work, we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film, resulting in the differences of additive distribution. We then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface, and prepared perovskite solar cells with a certified efficiency of 23.75%. Furthermore, this work also demonstrates an efficiency of 20.18% for the large-area perovskite solar module (PSM) with an aperture area of 60.84 cm. The PSM possesses remarkable continuous operation stability for maximum power point tracking of T > 1000 h in ambient air.
气体淬火和真空淬火工艺被广泛应用于加速溶剂挥发，以在刮刀涂布法中诱导钙钛矿成核。在这项工作中，我们发现这两种预结晶工艺导致钙钛矿薄膜内的结晶动力学顺序不同，从而导致添加剂分布的差异。然后，我们定制设计了一种名为1,3-双（4-甲氧基苯基）硫脲的添加剂分子，以获得在掩埋界面处缺陷和孔洞较少的薄膜，并制备了认证效率为23.75%的钙钛矿太阳能电池。此外，这项工作还展示了孔径面积为60.84平方厘米的大面积钙钛矿太阳能组件（PSM）的效率为20.18%。该PSM在环境空气中进行最大功率点跟踪时，具有超过1000小时的显著连续运行稳定性。
