Details

Autor(en) / Beteiligte

• Tam, Kai Cheong
• Kubis, Peter
• Maisch, Philipp
• Brabec, Christoph J.
• Egelhaaf, Hans‐Joachim

Titel

Fully printed organic solar modules with bottom and top silver nanowire electrodes

Ist Teil von

• Progress in photovoltaics, 2022-05, Vol.30 (5), p.528-542

Ort / Verlag

Bognor Regis: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• One of the advantages of organic photovoltaics (OPV) over other contemporary technologies is its relative ease of processing. There are, however, very few works that have realized fully printed devices, including the bottom electrode, let alone with a scalable process in a reasonable device size (>1 cm2). In this work, design steps and optimization processes towards fully printed OPV modules with scalable processes are demonstrated for the first time. An overview on issues related to upscaling with printed electrodes is first provided. The various issues are then addressed by a rational design process supported by measurements and calculations. Finally, a set of fully printed OPV modules are fabricated using these optimized parameters that have over 3.5‐cm2 active area with 5% efficiency. For the first time, this work has also demonstrated the process compatibility of fully printed device structures with non‐fullerene acceptor systems, which enables more design opportunities for the current generation of high‐performance OPV materials. Fully printed organic photovoltaic (OPV) modules with efficiencies of up to 5% have been fabricated by employing silver nanowires (AgNW) for bottom and top electrodes. The two main challenges of shunting between bottom and top electrodes on one hand and high resistance interconnections between adjacent cells on the other hand have been overcome by concomitant optimization of AgNW ink formulation, charge extraction layers, interconnection architecture, and laser processing. The resulting indium tin oxide‐free technology allows printing OPV modules on any kind of 2D or 3D surface.