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Rapid Microwave-Annealing Process of Hybrid Perovskites to Eliminate Miscellaneous Phase for High Performance Photovoltaics.
Advanced Science ( IF 14.3 ) Pub Date : 2020-04-30 , DOI: 10.1002/advs.202000480 Qing Chen 1 , Taotao Ma 1 , Fangfang Wang 1 , You Liu 1 , Sizhou Liu 1 , Jungan Wang 1 , Zhengchun Cheng 1 , Qing Chang 1 , Rong Yang 1 , Wenchao Huang 2 , Lin Wang 1 , Tianshi Qin 1 , Wei Huang 3
Advanced Science ( IF 14.3 ) Pub Date : 2020-04-30 , DOI: 10.1002/advs.202000480 Qing Chen 1 , Taotao Ma 1 , Fangfang Wang 1 , You Liu 1 , Sizhou Liu 1 , Jungan Wang 1 , Zhengchun Cheng 1 , Qing Chang 1 , Rong Yang 1 , Wenchao Huang 2 , Lin Wang 1 , Tianshi Qin 1 , Wei Huang 3
Affiliation
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Rapid processing technologies of perovskite solar cells (PSCs) offer an exciting approach to raise the rate of production. Herein, a rapid microwave‐annealing process (MAP) is reported to replace the traditional hotplate annealing process (HAP) and the processing period of perovskite is reduced to less than 1 min. Benefiting from the penetrability and simultaneity of microwave irradiation, the MAP method can effectively eliminate miscellaneous phases and thus achieve >1 µm large‐size crystal grains in perovskite films. These MAP treated perovskite films exhibit pure crystalline phase, long charge‐carrier lifetime, and low defect density, which can substantially improve the PSC efficiency without requiring an additional enhancer/passivation layer. The inverted planar PSCs present enhanced power conversion efficiency from 18.33% (HAP) to 21.59% (MAP) and good stability of >1000 h lifetime without encapsulation under ambient conditions. In addition, MAP can be applied to a large‐size (10 cm × 10 cm) perovskite film fabrication as well as a broader tolerance in environmental temperature and precursor concentration, making it a reliable method for repeatably practical fabrication of perovskite photovoltaics.
中文翻译：
混合钙钛矿的快速微波退火工艺可消除高性能光伏的杂相。
钙钛矿太阳能电池（PSC）的快速加工技术提供了一种令人兴奋的提高生产率的方法。据报道，快速微波退火工艺（MAP）取代了传统的热板退火工艺（HAP），并将钙钛矿的加工时间缩短至不到1分钟。受益于微波辐射的穿透性和同时性，MAP方法可以有效消除杂相，从而在钙钛矿薄膜中获得>1μm的大尺寸晶粒。这些经过 MAP 处理的钙钛矿薄膜表现出纯晶相、长载流子寿命和低缺陷密度，可以显着提高 PSC 效率，而无需额外的增强剂/钝化层。倒置平面 PSC 的功率转换效率从 18.33% (HAP) 提高到 21.59% (MAP)，并且在环境条件下无需封装即可保持 >1000 小时的良好稳定性。此外，MAP可应用于大尺寸（10 cm×10 cm）钙钛矿薄膜的制造，并且对环境温度和前驱体浓度具有更广泛的耐受性，使其成为可重复实际制造钙钛矿光伏电池的可靠方法。
更新日期：2020-06-24
中文翻译：
混合钙钛矿的快速微波退火工艺可消除高性能光伏的杂相。
钙钛矿太阳能电池（PSC）的快速加工技术提供了一种令人兴奋的提高生产率的方法。据报道，快速微波退火工艺（MAP）取代了传统的热板退火工艺（HAP），并将钙钛矿的加工时间缩短至不到1分钟。受益于微波辐射的穿透性和同时性，MAP方法可以有效消除杂相，从而在钙钛矿薄膜中获得>1μm的大尺寸晶粒。这些经过 MAP 处理的钙钛矿薄膜表现出纯晶相、长载流子寿命和低缺陷密度，可以显着提高 PSC 效率，而无需额外的增强剂/钝化层。倒置平面 PSC 的功率转换效率从 18.33% (HAP) 提高到 21.59% (MAP)，并且在环境条件下无需封装即可保持 >1000 小时的良好稳定性。此外，MAP可应用于大尺寸（10 cm×10 cm）钙钛矿薄膜的制造，并且对环境温度和前驱体浓度具有更广泛的耐受性，使其成为可重复实际制造钙钛矿光伏电池的可靠方法。
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