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Updated: Jun 13, 2026
In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
Published on: March 2, 2021
Enhancement of device performance of organic solar cells by an interfacial perylene derivative layer
Inho Kim1, Hanna M Haverinen, Jian Li
1School of Mechanical, Aerospace, Chemical and Materials Engineering and Advanced Photovoltaics Center, Arizona State University, Tempe, Arizona 85284, USA.
Abstract:
We report that device performance of organic solar cells consisting of zinc phthalocyanine and fullerene (C(60)) can be enhanced by insertion of a perylene derivative interfacial layer between fullerene and bathocuproine (BCP) exciton blocking layer (EBL). The morphology of the BCP is influenced by the underlying N,N'-dihexyl-perylene-3,4,9,10-bis(dicarboximide) (PTCDI-C6), which promotes migration of the cathode metal into the BCP layer. Insertion of a PTCDI-C6 layer between fullerene and BCP layers enhances the power conversion efficiency to 2.5%, an improvement of 32% over devices without PTCDI-C6 layer. The enhancement in device performance by insertion of PTCDI-C6 is attributed to a reduction in series resistance due to promoted metal migration into BCP and optimized optical interference effects in multilayered devices.
