journal article·2023-12-20

Fine-Tuned Active Layer Morphology for Bulk Heterojunction Organic Solar Cells with Indene-C60 Bisadduct as a Third Component

Bing Guo, Wanbin Li, Xia Guo, Guangda Li, Xiangyi Meng, Wei Ma, Shanshan Chen, Maojie Zhang, Kuan Sun

ACS Applied Materials & Interfaces· Volume 15· Issue 50
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Abstract

Active layer morphology is of vital importance for the photovoltaic performance of organic solar cells (OSCs). As fullerene derivatives and nonfullerene acceptors are highly complementary in many aspects, fullerene derivatives as a third component in nonfullerene OSCs could tune the blend morphology and improve the power conversion efficiency (PCE). Relative to PCBM, the indene-C60 bisadduct (IC 60 BA) as the third component in nonfullerene binary OSCs has not been extensively studied. Here, the fullerene derivative IC 60 BA is introduced into the PTZ1:IDIC blend system to finely tune the active layer morphology. Although the addition of IC 60 BA reduced the film absorption in the visible region and weakened the crystallinity, the more symmetric charge transport property, smaller domain size, and higher domain purity led to improved photovoltaic performance. This study indicates that IC 60 BA is a promising candidate to finely tune the morphology for achieving highly efficient OSCs.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Molecular Junctions and Nanostructures

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

Affiliations

MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, China

Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

National Engineering Research Center for Colloidal Materials, School of Chemistry & Chemical Engineering, Shandong University, Jinan, Shandong 250100, China

State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China

Funding

National Key Research and Development Program of China · Natural Science Foundation of Chongqing Municipality · China Postdoctoral Science Foundation · Science Fund for Distinguished Young Scholars of Chongqing Municipality · Chongqing Postdoctoral Science Foundation · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Chinese Academy of Sciences · Youth Talent Support Program of Chongqing

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