Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster Session IV

CPP 46.14: Poster

Mittwoch, 14. März 2018, 11:00–13:00, Poster A

Radiative efficiency in planar metal-organic-perovskite solar cells — •Simon Berger¹, Philipp Rieder¹, David Kiermasch¹, Kristofer Tvingstedt¹, Andreas Baumann², and Vladimir Dyakonov^1,2 — ¹Experimental Physics VI, Julius Maximilian University of Würzburg, 97074 Würzburg — ²Bavarian Center for Applied Energy Research (ZAE Bayern), 97074 Würzburg

In order to achieve an ideal solar cell with any material system, it is necessary to strive for the radiative efficiency limit. Here we evaluated the capability of planar perovskite solar cells in (p-i-n)-layout to emit light by EL-spectroscopy. In this technique charge carriers are injected into the solar cell to recombine and the emitted photons are being detected. We fabricated and evaluate devices with different hole transport layers namely PTAA, PEDOT-PSS and p-TPD. The MAPbI₃ and (MAPbBr₃)_x(FAPbI₃)_(1−x) perovskites were prepared by both the one-step and two-step method. We show the impact of these different charge selective layers and the applied voltage on the electro-luminescence characteristics and compute V_OC,Rad in the radiative limit for each material.