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Two-dimensional Perovskitoids Enhance Stability in Perovskite Solar Cells.
Liu, Cheng; Yang, Yi; Chen, Hao; Spanopoulos, Ioannis; Bati, Abdulaziz S R; Gilley, Isaiah W; Chen, Jianhua; Maxwell, Aidan; Vishal, Badri; Reynolds, Robert P; Wiggins, Taylor E; Wang, Zaiwei; Huang, Chuying; Fletcher, Jared; Liu, Yuan; Chen, Lin X; De Wolf, Stefaan; Chen, Bin; Zheng, Ding; Marks, Tobin J; Facchetti, Antonio; Sargent, Edward H; Kanatzidis, Mercouri G.
Affiliation
  • Liu C; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Yang Y; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Chen H; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Spanopoulos I; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Bati ASR; Department of Chemistry, University of South Florida, Tampa, Florida, USA.
  • Gilley IW; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Chen J; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Maxwell A; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Vishal B; Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada.
  • Reynolds RP; KAUST Solar Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  • Wiggins TE; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Wang Z; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Huang C; Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada.
  • Fletcher J; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Liu Y; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Chen LX; Department of Electrical and Computer Engineering, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • De Wolf S; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Chen B; KAUST Solar Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  • Zheng D; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA.
  • Marks TJ; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA. ding.zheng@northwestern.edu.
  • Facchetti A; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA. t-marks@northwestern.edu.
  • Sargent EH; Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, Illinois, USA. afacchetti6@gatech.edu.
  • Kanatzidis MG; School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Dr NW, Atlanta, Georgia, USA. afacchetti6@gatech.edu.
Nature ; 2024 Jul 08.
Article in En | MEDLINE | ID: mdl-38977018
ABSTRACT
Two-dimensional (2D)/three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells (PSCs)1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks that leads to degradation in performance over time3,4. We hypothesized that perovskitoids, with robust organic-inorganic networks enabled by edge- and face-sharing, could impede ion migration. We explored a set of perovskitoids of varying dimensionality, and found that cation migration within perovskitoid/perovskite heterostructures was suppressed compared to the 2D/3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces - this the result of enhanced octahedral connectivity and out-of-plane orientation. The 2D perovskitoid (A6BfP)8Pb7I22 (A6BfP N-aminohexyl-benz[f]-phthalimide) provides efficient passivation of perovskite surfaces and enables uniform large-area perovskite films. Devices based on perovskitoid/perovskite heterostructures achieve a certified quasi-steady-state power conversion efficiency of 24.6% for centimeter-area PSCs. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid/perovskite heterostructure at 85°C for 1,250 hours for encapsulated large-area devices in an air ambient.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nature Year: 2024 Document type: Article Affiliation country: Estados Unidos
Fulltext
Add to My VHL
Print
XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nature Year: 2024 Document type: Article Affiliation country: Estados Unidos