期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202006803
关键词
carbon electrode; electrospray; low‐ cost solar cells; perovskite
类别
资金
- Key Program for Intergovernmental S&T Innovation Cooperation Projects of National Key R&D Program of China [2019YFE0107100]
- National Science Foundation for Young Scientists of China [62004064]
- Nanosonic through SBIR program
- Office of Naval Research [N000141912461, N000141712520]
- National Science Foundation [1904811]
- National Natural Science Foundation of China [11932009]
- U.S. Department of Defense (DOD) [N000141912461, N000141712520] Funding Source: U.S. Department of Defense (DOD)
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1904811] Funding Source: National Science Foundation
The breakthrough of carbon-based PSCs with electrospray (ES) technique enables a low-cost configuration without the need for noble metal electrodes or hole transport layers. This scalable and industrially compatible method allows for continuous printing of all cell layers, leading to record power conversion efficiency of 14.41%.
With the power conversion efficiencies of perovskite solar cells (PSCs) exceeding 25%, the PSCs are a step closer to initial industrialization. Prior to transferring from laboratory fabrication to industrial manufacturing, issues such as scalability, material cost, and production line compatibility that significantly impact the manufacturing remain to be addressed. Here, breakthroughs on all these fronts are reported. Carbon-based PSCs with architecture fluorine doped tin oxide (FTO)/electron transport layer/perovskite/carbon, that eliminate the need for the hole transport layer and noble metal electrode, provide ultralow-cost configuration. This PSC architecture is manufactured using a scalable and industrially compatible electrospray (ES) technique, which enables continuous printing of all the cell layers. The ES deposited electron transport layer and perovskite layer exhibit properties comparable to that of the laboratory-scale spin coating method. The ES deposited carbon electrode layer exhibits superior conductivity and interfacial microstructure in comparison to films synthesized using the conventional doctor blading technique. As a result, the fully ES printed carbon-based PSCs show a record 14.41% power conversion efficiency, rivaling the state-of-the-art hole transporter-free PSCs. These results will immediately have an impact on the scalable production of PSCs.
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