首页|Inhibiting interfacial transport loss for efficient organic nonfullerene solar cells and photodetectors
Inhibiting interfacial transport loss for efficient organic nonfullerene solar cells and photodetectors
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Nonfullerene organic solar cells(OSCs)and photodetectors have received tremendous interest due to their rapidly progressed power conversion efficiency(PCE)and wide range photoresponse to near-infrared region,respectively.Further optimization of the interfacial transport layer is one of the key fac-tors toward enhanced performance.Herein,we reported a general multi-component electron transport layer(ETL)strategy to achieve better energy level alignments and interfacial contact for both OSCs and photodetectors.The binary polymer:molecule blend based ETL can overcome low crystallinity and self-aggregation issue in neat polymer and molecule ETL,respectively.The mixed blend provides a more tun-able platform to optimize the interfacial morphology and creates more efficient charge-transporting pathways.We showcase that the PNDIT-F3N:PDINN binary ETL exhibits its strength in a series of non-fullerene OSCs with enhanced fill factor and current density,achieving a champion PCE approaching 19％.Additionally,self-powered organic photodetectors with lower dark current and high detectivity were achieved with the same binary ETL strategy.Detailed morphology and device characterizations reveal that the binary ETL modulates the interfacial interface to deliver a more favorable energy level alignment,facilitating carrier extraction and transport.We believe these findings could provide insight into the design of ETL with sufficient interfacial tunability for organic optoelectronic devices.
Electron transport layerOrganic nonfullerene solar cellsOrganic photodetectorsCharge transferFill factor
Jijiao Huang、Bin Li、Yuxin Kong、Jianyu Yuan
展开 >
Institute of Functional Nano & Soft Materials(FUNSOM),Soochow University,Suzhou 215123,Jiangsu,China
Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,Jiangsu,China
NETL
NSTL
万方数据
