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Critical Role of Removing Impurities in Nickel Oxide on High-Efficiency and Long-Term Stability of Inverted Perovskite Solar Cells.
Wang, Shuangjie; Li, Yuke; Yang, Jiabao; Wang, Tong; Yang, Bowen; Cao, Qi; Pu, Xingyu; Etgar, Lioz; Han, Jian; Zhao, Junsong; Li, Xuanhua; Hagfeldt, Anders.
Affiliation
  • Wang S; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Li Y; Department Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, 999077, Shatin, Hong Kong, P.R. China.
  • Yang J; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Wang T; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Yang B; Department of Chemistry-Ångström Laboratory, Uppsala University, 75120, Uppsala, Sweden.
  • Cao Q; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Pu X; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Etgar L; Institute of Chemistry, Casali Center for Applied Chemistry, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.
  • Han J; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Zhao J; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Li X; State key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710000 Shaanxi, Xi'an, China.
  • Hagfeldt A; Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland.
Angew Chem Int Ed Engl ; 61(18): e202116534, 2022 Apr 25.
Article de En | MEDLINE | ID: mdl-35174939
The performance enhancement of inverted perovskite solar cells applying nickel oxide (NiOx ) as the hole transport layer (HTL) has been limited by impurity ions (such as nitrate ions). Herein, we have proposed a strategy to obtain high-quality NiOx nanoparticles via an ionic liquid-assisted synthesis method (NiOx -IL). Experimental and theoretical results illustrate that the cation of the ionic liquid can inhibit the adsorption of impurity ions on nickel hydroxide through a strong hydrogen bond and low adsorption energy, thereby obtaining NiOx -IL HTL with high conductivity and strong hole-extraction ability. Importantly, the removal of impurity ions can effectively suppress the redox reaction between the NiOx film and the perovskite film, thus slowing down the deterioration of device performance. Consequently, the modified inverted device shows a striking efficiency exceeding 22.62 %, and superior stability maintaining 92 % efficiency at a maximum power point tracking under one sun illumination for 1000 h.
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Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Angew Chem Int Ed Engl Année: 2022 Type de document: Article Pays d'affiliation: Chine Pays de publication: Allemagne
Texte intégral
Ajouter à My VHL
Imprimer
XML
PubMed Links
Recherche sur Google

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Angew Chem Int Ed Engl Année: 2022 Type de document: Article Pays d'affiliation: Chine Pays de publication: Allemagne