Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 50: Organic Electronics and Photovoltaics III - Organic Photovoltaics

CPP 50.11: Vortrag

Donnerstag, 4. April 2019, 12:15–12:30, H18

Toward a universal polymeric material for electrode buffer layers in organic and perovskite solar cells and organic light-emitting diodes — Qiang Zhang¹, Wei-Ting Wang², Tobias Wächter³, •Michael Zharnikov³, Yian Tai², and Der-Jang Liaw¹ — ¹Polymer Science and Materials Lab., Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan — ²Nanohybrid Materials and Devices Lab., Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan — ³Applied Physical Chemistry, Heidelberg University, 69120 Heidelberg, Germany

A novel concept of a "universal" electrode buffer layer material, exhibiting either hole transporting or reducing electrode work function properties, is demonstrated by the example of a polymeric compound PDTON. Depending on the composition ratio of acetic acid and ethyl acetate upon dispersing, PDTON forms two kinds of nanospheres, serving as building blocks and defining the properties of the respective materials, termed as A-PDTON and C-PDTON. These materials are suitable for hole transport (triphenylamine on the surface of A-PDTON nanospheres) and reducing the work function of electrode due to the formation of suitable interfacial dipole (C-PDTON), respectively. We demonstrate the versatility and high compatibility of these two types of the same polymer to organic solar cells, organic light-emitting diodes, and perovskite solar cells, exhibiting comparable or even superior performance compared to the standard device architectures.