Your browser doesn't support javascript.
loading
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.
Afiliação
  • Liu C; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Yang Y; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Chen H; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Spanopoulos I; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Bati ASR; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Gilley IW; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Chen J; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Maxwell A; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Vishal B; Department of Electrical and Computer Engineering, University of Toronto, 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, Evanston, IL, USA.
  • Wang Z; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Huang C; Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
  • Fletcher J; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Liu Y; Department of Chemistry, Northwestern University, Evanston, IL, USA.
  • Chen LX; Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, USA.
  • De Wolf S; Department of Chemistry, Northwestern University, Evanston, IL, 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, Evanston, IL, USA.
  • Marks TJ; Department of Chemistry, Northwestern University, Evanston, IL, USA. ding.zheng@northwestern.edu.
  • Facchetti A; Department of Chemistry, Northwestern University, Evanston, IL, USA. t-marks@northwestern.edu.
  • Sargent EH; Department of Chemistry, Northwestern University, Evanston, IL, USA. afacchetti6@gatech.edu.
  • Kanatzidis MG; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA. afacchetti6@gatech.edu.
Nature ; 2024 Jul 08.
Article em En | MEDLINE | ID: mdl-38977018
ABSTRACT
Two-dimensional (2D) and three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks, leading 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 with the 2D-3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces-this is 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 centimetre-area perovskite solar cells. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid-perovskite heterostructure at 85 °C for 1,250 h for encapsulated large-area devices in ambient air.
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article