Details

Autor(en) / Beteiligte

• Min, Jie
• Bronnbauer, Carina
• Zhang, Zhi-Guo
• Cui, Chaohua
• Luponosov, Yuriy N.
• Ata, Ibrahim
• Schweizer, Peter
• Przybilla, Thomas
• Guo, Fei
• Ameri, Tayebeh
• Forberich, Karen
• Spiecker, Erdmann
• Bäuerle, Peter
• Ponomarenko, Sergei A.
• Li, Yongfang
• Brabec, Christoph J.

Titel

Fully Solution-Processed Small Molecule Semitransparent Solar Cells: Optimization of Transparent Cathode Architecture and Four Absorbing Layers

Ist Teil von

• Advanced functional materials, 2016-07, Vol.26 (25), p.4543-4550

Ort / Verlag

Blackwell Publishing Ltd

Erscheinungsjahr

2016

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• Semitransparent solar cells (SSCs) can open photovoltaic applications in many commercial areas, such as power‐generating windows and building integrated photovoltaics. This study successfully demonstrates solution‐processed small molecule SSCs with a conventional configuration for the presently tested material systems, namely BDTT‐S‐TR:PC70BM, N(Ph‐2T‐DCN‐Et)3:PC70BM, SMPV1:PC70BM, and UU07:PC60BM. The top transparent cathode coated through solution processes employs a highly transparent silver nanowire as electrode together with a combination interface bilayer of zinc oxide nanoparticles (ZnO) and a perylene diimide derivative (PDINO). This ZnO/PDINO bilayer not only serves as an effective cathode buffer layer but also acts as a protective film on top of the active layer. With this integrated contribution, this study achieves a power conversion efficiency (PCE) of 3.62% for fully solution‐processed SSCs based on BDTT‐S‐TR system. Furthermore, the other three systems with various colors exhibited the PCEs close to 3% as expected from simulations, demonstrate the practicality and versatility of this printed semitransparent device architecture for small mole­cule systems. This work amplifies the potential of small molecule solar cells for window integration. Small molecule semitransparent solar cells are successfully demonstrated with conventional structure using a zinc oxide nanoparticles and a perylene diimide with N‐oxide as electron extraction bilayer and silver nanowire as the top transparent electrode.