journal article·2022-07-06

Tailoring the Morphology’s Microevolution for Binary All-Polymer Solar Cells Processed by Aromatic Hydrocarbon Solvent with 16.22% Efficiency

Tao Yang, Shangfei Yao, Tao Liu, Bingzhang Huang, Yiqun Xiao, Heng Liu, Xinhui Lu, Bingsuo Zou

ACS Applied Materials & Interfaces· Volume 14· Issue 26
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Abstract

Herein, we report a systematic solvent selection for eco-friendly processed binary all-polymer solar cells (APSCs) with decent power conversion efficiencies (PCEs). Three typical solvents, toluene, o-xylene, and 1,2,4-trimethylbezene, are chosen and compared. The device enabled by o-xylene exhibits the most outstanding PCE of 16.22%, thanks to its favorable morphology, which is to say a well-formed face-on orientation packing motif and a suitable crystallinity and size of phase segregation. Consequently, the solar cell affords sufficient charge generation, as well as efficient and balanced charge transport, which are all positive to pursuing high efficiency. This work offers an understanding of using complete solvent selection as the strategy to realize high-performance devices by sophisticatedly controlling the morphology.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Thin-Film Transistor Technologies · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Julong College, Shenzhen Technology University, Shenzhen 518118, China

Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China

School of Civil and Architectural Engineering, Liuzhou Institute of Technology, Liuzhou 545610, China

Department of Physics, Chinese University of Hong Kong, Hong Kong, New Territories Hong Kong 999077, China

Funding

European Commission · Minist??rio da Educa????o e Ci??ncia · Shenzhen Overseas Talent Project · Shenzhen Key Laboratory of Marine Energies and Environmental Safety

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