期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 48, 页码 13239-13243出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201408638
关键词
inkjet printing; nanocarbon; perovskite; solar cells
资金
- HK-RGC General Research Funds (GRE) [HKUST 606511, 605710]
A planar perovskite solar cell that incorporates a nanocarbon hole-extraction layer is demonstrated for the first time by an inkjet printing technique with a precisely controlled pattern and interface. By designing the carbon plus CH3NH3I ink to transform PbI2 in situ to CH3NH3PbI3, an interpenetrating seamless interface between the CH3NH3PbI3 active layer and the carbon hole-extraction electrode was instantly constructed, with a markedly reduced charge recombination compared to that with the carbon ink alone. As a result, a considerably higher power conversion efficiency up to 11.60% was delivered by the corresponding solar cell. This method provides a major step towards the fabrication of low-cost, large-scale, metal-electrode-free but still highly efficient perovskite solar cells.
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