期刊
NANOSCALE
卷 8, 期 43, 页码 18309-18314出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nr04741f
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资金
- Fundamental & Advanced Research Project of Chongqing [cstc2013jcyjC00001]
- Fundamental & Advanced Research Key Project of Chongqing [cstc2015jcyjB0628]
The lifetime and power conversion efficiency are the key issues for the commercialization of perovskite solar cells (PSCs). In this paper, the development of 2D/3D perovskite hybrids (CA(2)PbI(4)/MAPbI(x)Cl(3-x)) was firstly demonstrated to be a reliable method to combine their advantages, and provided a new concept for achieving both stable and efficient PSCs through the hybridization of perovskites. 2D/3D perovskite hybrids afforded significantly-improved moisture stability of films and devices without encapsulation in a high humidity of 63 +/- 5%, as compared with the 3D perovskite (MAPbI(x)Cl(3-x)). The 2D/3D perovskite-hybrid film did not undergo any degradation after 40 days, while the 3D perovskite decomposed completely under the same conditions after 8 days. The 2D/3D perovskite-hybrid device maintained 54% of the original efficiency after 220 hours, whereas the 3D perovskite device lost all the efficiency within only 50 hours. Moreover, the 2D/3D perovskite hybrid achieved comparable device performances (PCE: 13.86%) to the 3D perovskite (PCE: 13.12%) after the optimization of device fabrication conditions.
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