Journal
ACS APPLIED ENERGY MATERIALS
Volume 4, Issue 6, Pages 5905-5912Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c00626
Keywords
electron extraction; black phosphorus quantum dots; heterostructure; non-fullerene organic solar cells; power conversion efficiency
Funding
- Natural Science Foundations of China [51903058, 51873042, 51803063]
- One-Hundred Young Talents of Guangdong University of Technology [220413712]
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By rationally designing the interface, the heterostructure of PFN-Br/BPQDs achieved a PCE of 15.03% for high-performance non-fullerene OSCs, offering an inspiring route for future advancements in this field.
In this study, we develop black phosphorus quantum dots (BPQDs) combined with PFN-Br to construct a heterostucture (PFN-Br/BPQDs) as efficient interlayer for high-performance non-fullerene organic solar cells (OSCs). By rational interface formation, the synergia of the PFN-Br/BPQDs heterointerface is fully utilized, which not only decreases the interface roughness of PFN-Br but also coordinates the electronic structures of each ingredient to provide the additional built-in field and more pathway for electron transportation, leading to the increase of electron extraction efficiency and reduction of recombination losses. As a result, the first successful properly designed PFN-Br/BPQDs heterostructure for non-fullerene OSCs achieves a PCE of 15.03% (maximum of 15.20%), which offers an inspiring route for high performance non-fullerene OSCs.
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