Semi-Transparent Organic Photovoltaic Cells with Dielectric/Metal/Dielectric Top Electrode: Influence of the Metal on Their Performances

Linda Cattin (1) , Guy Louarn (1) , Mustapha Morsli (2) , Jean Christian Bernède (3)

1 IMN - Institut des Matériaux Jean Rouxel
2 UN UFR ST - Université de Nantes - UFR des Sciences et des Techniques
3 MOLTECH-Anjou

n order to grow semi-transparent organic photovoltaic cells (OPVs), multilayer dielec-tric/metal/dielectric (D/M/D) structures are used as a transparent top electrode in inverted OPVs.Two different electrodes are probed, MoO3/Ag/MoO3and MoO3/Ag/Cu:Ag/ZnS. Both of themexhibit high transmission in visible and small sheet resistance. Semi-transparent inverted OPVs usingthese electrodes as the top anode are probed. The active organic layers consist in the SubPc/C60couple. The dependence of the OPV performances on the top electrode was investigated. The results show that far better results are achieved when the top anode MoO3/Ag/MoO3is used. The OPV efficiency obtained was only 20% smaller in comparison with the opaque OPV, but with a transparencyof nearly 50% in a broad range of the visible light (400–600 nm). In the case of MoO3/Ag/Cu:Ag/ZnStop anode, the small efficiency obtained is due to the presence of some Cu diffusion in the MoO3layer, which degrades the contact anode/organic material

Mots clés: Semi-Transparent Organic semi-transparent organic photovoltaic cells; dielectric/metal/dielectric transparent electrode; top transparent anode; MoO 3 /Ag/MoO 3; inverted planar heterojunction; SubPc/C60 active layers

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Linda Cattin, Guy Louarn, Mustapha Morsli, Jean Christian Bernède. Semi-Transparent Organic Photovoltaic Cells with Dielectric/Metal/Dielectric Top Electrode: Influence of the Metal on Their Performances. Nanomaterials, 2021, 11 (2), pp.393. ⟨10.3390/nano11020393⟩. ⟨hal-03169736⟩