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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster Session I
CPP 15.47: Poster
Montag, 17. März 2025, 19:00–21:00, P4
Impact of amphiphilic additives on organic solar cells: Enhancing thermal stability for long term performance — •Jose Prince Madalaimuthu1,2, Tim Matzdorff1,2, Zhuo Xu1,2, Md. Moidul Islam1,2, Yisak Tsegezab Gerase3, Hassan Ismail1,2, Rico Meitzner4, Aman Anand1,2, Martin Presselt3, Ulrich S Schubert1,2, and Harald Hoppe1,2 — 1Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich-Schiller-University Jena, Jena, Germany — 2Laboratory of Organic and Macromolecular Chemistry (IOMC Jena), Friedrich-Schiller- University Jena, Jena, Germany — 3Leibniz Institute of Photonic Technology (IPHT), Jena, Germany — 4Helmholtz-Zentrum Berlin GmbH, Hahn-Meitner Platz 1, 14109 Berlin, Germany
The stability of organic solar cells (OSCs) depends not only on the device architecture or effective sealing but also significantly on the morphological stability of the photoactive layer. This stability can be disrupted by alterations in the spatial arrangement of the electron donor and acceptor, which are the fundamental components of OSCs. The extent of phase separation between donor and acceptor regions within the bulk heterojunction (BHJ) plays a pivotal role in determining device performance. Consequently, various strategies have been explored to preserve the distribution of these components. One promising approach is the incorporation of amphiphilic molecules to enhance the stability of the donor-acceptor interface. This method improves thermal resilience, overall OSC performance, and mitigates morphological degradation.
Keywords: Organic solar cell; Amphiphilic molecules; Morphological degradation; Long term morphological stability