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Ionic liquids tailoring crystal orientation and electronic properties for stable perovskite solar cells

Zou, Yuqin (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany
Eichhorn, Johanna (författare)
Walter Schottky Institute and Physics Department, Technische Universität München, Am Coulombwall 4, Garching, 85748, Germany
Rieger, Sebastian (författare)
Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-Universität München, Königinstr. 10, München, 80539, Germany
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Zheng, Yiting (författare)
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
Yuan, Shuai (författare)
Department of Chemistry, Renmin University of China, No. 59 Zhongguancun Street, Beijing, 100872, China
Wolz, Lukas (författare)
Walter Schottky Institute and Physics Department, Technische Universität München, Am Coulombwall 4, Garching, 85748, Germany
Spanier, Lukas V. (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany
Heger, Julian E. (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany
Yin, Shanshan (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany
Everett, Christopher R. (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany
Dai, Linjie (författare)
Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
Schwartzkopf, Matthias (författare)
Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany
Mu, Cheng (författare)
Department of Chemistry, Renmin University of China, No. 59 Zhongguancun Street, Beijing, 100872, China
Roth, Stephan V. (författare)
KTH,Ytbehandlingsteknik,Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany
Sharp, Ian D. (författare)
Walter Schottky Institute and Physics Department, Technische Universität München, Am Coulombwall 4, Garching, 85748, Germany
Chen, Chun-Chao (författare)
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
Feldmann, Jochen (författare)
Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-Universität München, Königinstr. 10, München, 80539, Germany
Stranks, Samuel D. (författare)
Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom; Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
Müller-Buschbaum, Peter (författare)
Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, Garching, 85748, Germany; Heinz Maier-Leibnitz-Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, Garching, 85748, Germany
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Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str 1, Garching, 85748, Germany Walter Schottky Institute and Physics Department, Technische Universität München, Am Coulombwall 4, Garching, 85748, Germany (creator_code:org_t)
Elsevier BV, 2023
2023
Engelska.
Ingår i: Nano Energy. - : Elsevier BV. - 2211-2855 .- 2211-3282. ; 112, s. 108449-108449
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • The crystallization behavior of perovskite films has a profound influence on the resulting defect densities, charge carrier dynamics and photovoltaic performance. Herein, we introduce ionic liquids into the perovskite component to tailor the crystal growth of perovskite films from a disordered to a preferential corner-up orientation and accordingly increase the charge carrier mobility to accelerate electron transport and extraction. Using time-resolved measurements, we probe the charge carrier generation, transport and recombination behavior in these films and related devices. We find the ionic liquid-containing samples exhibit lower defects, faster charge carrier transport and suppressed non-radiative recombination, contributing to higher efficiency and fill factor. Via operando grazing-incidence small- and wide-angle X-ray scattering measurements, we observe a light-induced lattice compression and grain fragmentation in the control devices, whereas the ionic liquid-containing devices exhibit a slight light-induced crystal reconstitution and stronger tolerance against illumination. Under ambient conditions, the non-encapsulated device with the pyrrolidinium-based ionic compound (Pyr14BF4) maintains 97% of its initial efficiency after 4368 h.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

Nyckelord

Crystal orientation GIWAXS
GISAXS Charge carrier kinetics Stability Perovskite solar cells

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