期刊
ENERGIES
卷 14, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/en14061751
关键词
sequential deposition; out of glove-box; layer by layer deposition; NiOx; low-cost fabrication
资金
- Italian Ministry of Economic Development
- Ministry of Science and Higher Education of the Russian Federation [075-15-2019-872/074-02-2018-327]
This paper demonstrates the high potential of pristine single-cation and mixed cation/anion perovskite solar cells fabricated by sequential deposition. Factors influencing cell performance were compared and optimized to achieve improved efficiency in ambient conditions. The layer by layer deposition of NiOx was found to be crucial for enhancing the efficiency of inverted perovskite solar cells using the sequential deposition method.
In this paper, we demonstrate the high potentialities of pristine single-cation and mixed cation/anion perovskite solar cells (PSC) fabricated by sequential method deposition in p-i-n planar architecture (ITO/NiOX/Perovskite/PCBM/BCP/Ag) in ambient conditions. We applied the crystal engineering approach for perovskite deposition to control the quality and crystallinity of the light-harvesting film. The formation of a full converted and uniform perovskite absorber layer from poriferous pre-film on a planar hole transporting layer (HTL) is one of the crucial factors for the fabrication of high-performance PSCs. We show that the in-air sequential deposited MAPbI(3)-based PSCs on planar nickel oxide (NiOX) permitted to obtain a Power Conversion Efficiency (PCE) exceeding 14% while the (FA,MA,Cs)Pb(I,Br)(3)-based PSC achieved 15.6%. In this paper we also compared the influence of transporting layers on the cell performance by testing material depositions quantity and thickness (for hole transporting layer), and conditions of deposition processes (for electron transporting layer). Moreover, we optimized second step of perovskite deposition by varying the dipping time of substrates into the MA(I,Br) solution. We have shown that the layer by layer deposition of the NiOx is the key point to improve the efficiency for inverted perovskite solar cell out of glove-box using sequential deposition method, increasing the relative efficiency of +26% with respect to reference cells.
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