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Interdiffusion Stomatal Movement in Efficient Multiple-Cation-Based Perovskite Solar Cells.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-07-14 , DOI: 10.1021/acsami.0c10873
Cong Li 1 , Zhinan Zhu 1 , Bingqiang Niu 1 , Fu Yang 2 , Xinpeng Chen 1 , Yingke Ren 3 , Peng Zhong 1 , Shuzi Hayase 2 , Tianhong Cui 4 , Rusen Yang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-07-14 , DOI: 10.1021/acsami.0c10873
Cong Li 1 , Zhinan Zhu 1 , Bingqiang Niu 1 , Fu Yang 2 , Xinpeng Chen 1 , Yingke Ren 3 , Peng Zhong 1 , Shuzi Hayase 2 , Tianhong Cui 4 , Rusen Yang 1
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The composition and crystallization process are essential for high-quality perovskite films. Cesium (Cs) and methylammonium chlorine (MACl) were found to affect the crystallization kinetics of perovskite, and the performance and stability of corresponding devices were greatly improved. We adopted an ion exchange method to remove MACl vapor and add Cs to form a multiple-cation-based perovskite film. With the increase of annealing time, Cl– from cesium chloride (CsCl) and MA from methylammonium bromide (MABr) formed gradually MACl vapor, and the porosity of surface morphology improved accordingly. The highly crystallized and compact CsyMAx – yFA1 – xPbI3 – xBrx perovskite film with different compositions was eventually obtained. The effects of the amount of MABr on the property of perovskite films and on the performance of the corresponding perovskite solar cells (PerSCs) were systematically studied. The PerSCs derived from 12 mg of MABr exhibit the best photovoltaic performance with a power conversion efficiency of 21.57% under 1 sun illumination.
中文翻译:
高效基于多阳离子的钙钛矿太阳能电池中的相互扩散气孔运动。
组成和结晶过程对于高质量的钙钛矿薄膜至关重要。发现铯(Cs)和甲基铵氯(MACl)影响钙钛矿的结晶动力学,并且大大提高了相应器件的性能和稳定性。我们采用离子交换方法去除MACl蒸气并添加Cs形成基于多阳离子的钙钛矿膜。随着退火时间的增加,氯-从逐渐形成MACL蒸气甲基铵溴化物(MABR)从氯化铯(氯化铯)和MA,和表面形态的孔隙度相应提升。高度结晶且致密的Cs y MA x – y FA 1 – x PbI 3 – x最终获得具有不同组成的Br x钙钛矿膜。系统研究了MABr量对钙钛矿薄膜性能以及相应钙钛矿太阳能电池(PerSCs)性能的影响。源自12 mg MABr的PerSC在1个阳光照射下表现出最佳的光伏性能,功率转换效率为21.57%。
更新日期:2020-08-05
中文翻译:
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高效基于多阳离子的钙钛矿太阳能电池中的相互扩散气孔运动。
组成和结晶过程对于高质量的钙钛矿薄膜至关重要。发现铯(Cs)和甲基铵氯(MACl)影响钙钛矿的结晶动力学,并且大大提高了相应器件的性能和稳定性。我们采用离子交换方法去除MACl蒸气并添加Cs形成基于多阳离子的钙钛矿膜。随着退火时间的增加,氯-从逐渐形成MACL蒸气甲基铵溴化物(MABR)从氯化铯(氯化铯)和MA,和表面形态的孔隙度相应提升。高度结晶且致密的Cs y MA x – y FA 1 – x PbI 3 – x最终获得具有不同组成的Br x钙钛矿膜。系统研究了MABr量对钙钛矿薄膜性能以及相应钙钛矿太阳能电池(PerSCs)性能的影响。源自12 mg MABr的PerSC在1个阳光照射下表现出最佳的光伏性能,功率转换效率为21.57%。