Interfacial modification layers based on carbon dots for efficient inverted polymer solar cells exceeding 10% power conversion efficiency

Passivating Surface Defects of n‐SnO2 Electron Transporting Layer by InP/ZnS Quantum Dots: Toward Efficient and Stable Organic Solar Cells

“…Previous results23–25 revealed that the insertion of SAMs and CPEs could not only tune the work functions (WFs) of the ETLs, but also facilitate the electron extraction efficiency by suppressing the trap‐assisted recombination, consequently leading to a reduced energy loss during the charge transport processes. Besides above materials, the utilization of quantum dots (QDs) as an interfacial modifier to form QDs/ETL bilayer in OSCs has received more attention 26,27. With the advantages of good water/alcohol solubility, diversity of nanostructure, and size, as well as the tunable optical and electrical properties, the QDs/ETL bilayers have been widely used in optoelectronic devices 28–30.…”

“…With the advantages of good water/alcohol solubility, diversity of nanostructure, and size, as well as the tunable optical and electrical properties, the QDs/ETL bilayers have been widely used in optoelectronic devices 28–30. Furthermore, the integral absorption enhancement was observed in OSCs by introducing QDs in the photovoltaic matrix, due to their unique performance of luminescence emission 26. The small size of QDs is beneficial to passivate the surface defect of metal oxide ETLs and form denser conductive layer for efficient charge dissociation and transfer.…”

Cathode and Anode Interlayers Based on Polymer Carbon Dots via Work Function Regulation for Efficient Polymer Solar Cells

“…Proper interfacial materials can further optimize the electrical properties of the interfaces between light‐harvesting active layer and charge‐collecting electrodes, thus contributing to improved device performance . In previous works, CDs have been employed alone or combined with other typical interfacial materials as electrode interlayers in PSCs . Enhanced device performance has been achieved via the introduction of CDs to other typical cathode interlayers, such as ZnO or PEI .…”

“…In previous works, CDs have been employed alone or combined with other typical interfacial materials as electrode interlayers in PSCs . Enhanced device performance has been achieved via the introduction of CDs to other typical cathode interlayers, such as ZnO or PEI . CDs can also be applied between active layer and MoO 3 , a typical anode interlayer, to improve the efficiency of PSCs .…”

Graphene-based materials for polymer solar cells

“…With the development of novel photovoltaic materials [6][7][8][9], the improvement of fabrication processing [10] and optimization of device structures [11,12], a 10% of the power conversion efficiency (PCE) have broken through for PSCs with either single junction [13] or tandem structure [14]. However, in comparison with the conventional and commercial photovoltaic devices, such as silicon solar cells, further improvements of the PCE and long-term stability of PSCs are still highly required.…”