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Sökning: id:"swepub:oai:DiVA.org:kth-330090" > Control of the Crys...

Control of the Crystallization and Phase Separation Kinetics in Sequential Blade-Coated Organic Solar Cells by Optimizing the Upper Layer Processing Solvent

Wang, Yilin (författare)
State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
Xue, Jingwei (författare)
State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
Zhong, Huaying (författare)
Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching, Germany, James-Franck-Str. 1
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Everett, Christopher R. (författare)
Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching, Germany, James-Franck-Str. 1
Jiang, Xinyu (författare)
Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching, Germany, James-Franck-Str. 1
Reus, Manuel A. (författare)
Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching, Germany, James-Franck-Str. 1
Chumakov, Andrei (författare)
Deutsches Elektronen-Synchrotron (DESY), 22607, Hamburg, Germany
Roth, Stephan V. (författare)
KTH,Ytbehandlingsteknik,Deutsches Elektronen-Synchrotron (DESY), 22607, Hamburg, Germany
Adedeji, Michael A. (författare)
School of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa, Pietermaritzburg Campus, Private Bag X01, Scottsville
Jili, Ncedo (författare)
School of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa, Pietermaritzburg Campus, Private Bag X01, Scottsville
Zhou, Ke (författare)
State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
Lu, Guanghao (författare)
Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
Tang, Zheng (författare)
Center for Advanced Low-dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
Mola, Genene Tessema (författare)
School of Chemistry & Physics, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa, Pietermaritzburg Campus, Private Bag X01, Scottsville
Müller-Buschbaum, Peter (författare)
Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching, Germany, James-Franck-Str. 1; Technische Universität München, Heinz Maier-Leibnitz Zentrum (MLZ), Lichtenbergstraße 1, 85748, Garching, Germany, Lichtenbergstraße 1
Ma, Wei (författare)
State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
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State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str 1, 85748, Garching, Germany, James-Franck-Str. 1 (creator_code:org_t)
2023-01
2023
Engelska.
Ingår i: Advanced Energy Materials. - : Wiley. - 1614-6832 .- 1614-6840. ; 13:7
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Sequential deposition of the active layer in organic solar cells (OSCs) is favorable to circumvent the existing drawbacks associated with controlling the microstructure in bulk-heterojunction (BHJ) device fabrication. However, how the processing solvents impact on the morphology during sequential deposition processes is still poorly understood. Herein, high-efficiency OSCs are fabricated by a sequential blade coating (SBC) through optimization of the morphology evolution process induced by processing solvents. It is demonstrated that the device performance is highly dependent on the processing solvent of the upper layer. In situ morphology characterizations reveal that an obvious liquid–solid phase separation can be identified during the chlorobenzene processing of the D18 layer, corresponding to larger phase separation. During chloroform (CF) processing of the D18 layer, a proper aggregation rate of Y6 and favorable intermixing of lower and upper layers results in the enhanced crystallinity of the acceptor. This facilitates efficient exciton dissociation and charge transport with an inhibited charge recombination in the D18/CF-based devices, contributing to a superior performance of 17.23%. These results highlight the importance of the processing solvent for the upper layer in the SBC strategy and suggest the great potential of achieving optimized morphology and high-efficiency OSCs using the SBC strategy.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi -- Polymerkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Polymer Chemistry (hsv//eng)

Nyckelord

morphology
organic solar cells
sequential blade coating
solvents

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ref (ämneskategori)
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