Speaking of large-scale photovoltaics devices, tandem structure is a very promising architecture that can amplify the overall potential. In this study, we present the transferable-printing process for large-scale organic tandem solar cells (LSOTSCs) by organic-solvent-free stacking. The transferable-printing process can provide the proper preservation for the tandem bottom cell as well as the stable deposition for the ultra-thin interconnecting layer. The LSOTSCs are based on a mixture of polymers and fullerene-derivations and connected by ambipolar ZnO nanoparticles as the interconnecting layer (ICL-ZnO NPs). Two self-assembled monolayers (SAMs), which are 4-(trifluoromethyl)benzylphosphonic acid (CF3BPA) as hole injection and 4-methoxybenzoic acid (OCH3BA) as electron injection, have been attached to the top and the bottom of the ICL-ZnO NPs, respectively. In this case, we apply positive and negative dipoles to control the charge transfer direction and improve the short circuit current and fill factor. It results from reducing shunt current leakage. Furthermore, we demonstrate a transfer-printing Quadra-layer LSOTSC with 9 cm2 of device area, ~2.5V of open circuit voltage (VOC), and together with the superior power conversion efficiency.

Large-area transferable-printing ambipolar interconnecting layer for multi-junction organic tandem solar cells

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.