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All Electrospray Printing of Carbon–Based Cost–Effective Perovskite Solar Cells

Journal Article · · Advanced Functional Materials
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [4];  [4];  [5];  [2]
  1. Hubei Univ., Wuhan (China); Materials Science and Engineering, Pennsylvania State University
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Huazhong Univ. of Science and Technology, Wuhan (China)
  4. Hubei Univ., Wuhan (China)
  5. Southern Univ. of Science and Technology, Shenzhen (China)

With the power conversion efficiencies of PSCs exceeding 25%, the perovskite solar cells (PSCs) are closer to step into the initial industrialization. Prior to transferring from laboratory fabrication to industrial manufacturing, issues such as scalability, materials cost, and production line compatibility that significantly impact the manufacturing remain to be addressed. Here we report breakthroughs on all these fronts. Carbon-based PSCs with architecture FTO/electron transport layer/perovskite/carbon, that eliminate the need for the hole transport layer and noble metal electrode, provide ultra-low-cost configuration. This PSC architecture was 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 exhibited properties comparable to that of the laboratory-scale spin coating method. The ES deposited carbon electrode layer exhibited 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 showed a record 14.41% power conversion efficiency, rivaling the state-of-the-art hole transporter-free PSCs. Furthermore, these results will immediately have an impact on the scalable production of PSCs.

Research Organization:
NanoSonic, Pembroke, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Office of Naval Research; National Science Foundation
Grant/Contract Number:
SC0019844
OSTI ID:
1808289
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 6 Vol. 31; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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