采用Bphen和BCP制成双电子传输层(Double electron transport layers,DETLs)的有机发光二极管器件,与Bphen单独作ETL的器件相比,DETLs器件具有较小的空穴漏电流,效率提升10%。与BCP独自作ETL的器件相比,更多的电子注入使DETLs器件的效率...采用Bphen和BCP制成双电子传输层(Double electron transport layers,DETLs)的有机发光二极管器件,与Bphen单独作ETL的器件相比,DETLs器件具有较小的空穴漏电流,效率提升10%。与BCP独自作ETL的器件相比,更多的电子注入使DETLs器件的效率在50~600 m A/cm2的电流范围内没有衰减。BCP作ETL的器件的效率从50 m A/cm2时的2.5 cd/A衰减至300 m A/cm2的2.1 cd/A,衰减了16%。Cs2CO3∶BCP独自作ETL的器件效率在50~300 m A/cm2的电流范围内衰减了30%,而Bphen/Cs2CO3∶BCP作DETLs的器件效率在50~600 m A/cm2的电流范围内衰减幅度为0,原因是Bphen阻挡了Cs原子扩散至发光层。展开更多
In this paper,bulk heterojunction solar cells with poly-(3-hexylthiophene)(P3HT):[6,6]-phenyl-C61-butyric-acid-methylester(PCBM) as an active layer and modified poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(...In this paper,bulk heterojunction solar cells with poly-(3-hexylthiophene)(P3HT):[6,6]-phenyl-C61-butyric-acid-methylester(PCBM) as an active layer and modified poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS) as a buffer layer are fabricated.The buffer layer is modified by adding 1% to 5% dimethyl sulfoxide(DMSO) into PEDOT:PSS solution before spin-coating.The conductivity of modified PEDOT:PSS and the performance of solar cells with modified PEDOT:PSS are measured.The highest conductivity of modified PEDOT:PSS with 4% DMSO can achieve 89.693 S/cm.The performance of organic solar cell with PEDOT:PSS modified by 4% DMSO is the best.The 4% DMSOmodified-PEDOT:PSS cell has a power conversion efficiency of 3.34%,V oc of 5.7 V,J sc of 14.56 mA/cm 2 and filling factor(FF) of 40.34%.展开更多
文摘采用Bphen和BCP制成双电子传输层(Double electron transport layers,DETLs)的有机发光二极管器件,与Bphen单独作ETL的器件相比,DETLs器件具有较小的空穴漏电流,效率提升10%。与BCP独自作ETL的器件相比,更多的电子注入使DETLs器件的效率在50~600 m A/cm2的电流范围内没有衰减。BCP作ETL的器件的效率从50 m A/cm2时的2.5 cd/A衰减至300 m A/cm2的2.1 cd/A,衰减了16%。Cs2CO3∶BCP独自作ETL的器件效率在50~300 m A/cm2的电流范围内衰减了30%,而Bphen/Cs2CO3∶BCP作DETLs的器件效率在50~600 m A/cm2的电流范围内衰减幅度为0,原因是Bphen阻挡了Cs原子扩散至发光层。
基金supported by the National Natural Science Foundation of China (Nos.60977027 and 60825407)the Fundamental Research Funds for the Central Universities (No.2010JBZ003)the Beijing Municipal Science & Technology Commission (No.Z090803044009001)
文摘In this paper,bulk heterojunction solar cells with poly-(3-hexylthiophene)(P3HT):[6,6]-phenyl-C61-butyric-acid-methylester(PCBM) as an active layer and modified poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS) as a buffer layer are fabricated.The buffer layer is modified by adding 1% to 5% dimethyl sulfoxide(DMSO) into PEDOT:PSS solution before spin-coating.The conductivity of modified PEDOT:PSS and the performance of solar cells with modified PEDOT:PSS are measured.The highest conductivity of modified PEDOT:PSS with 4% DMSO can achieve 89.693 S/cm.The performance of organic solar cell with PEDOT:PSS modified by 4% DMSO is the best.The 4% DMSOmodified-PEDOT:PSS cell has a power conversion efficiency of 3.34%,V oc of 5.7 V,J sc of 14.56 mA/cm 2 and filling factor(FF) of 40.34%.
