Molecular doping enhances the performance of solid-state dye-sensitized solar cells based on P3HT as a hole-transporting material
详细信息    查看官网全文
摘要
Conducting polymer poly(3-hexylthiophene-2,5-diyl)(P3HT) has attracted intense research interest as hole-transporting materials(HTMs) in solid-state dye-sensitized solar cells(ss-DSCs).Nevertheless, pristine P3HT-based devices typically exhibit relatively poor overall performance, mainly due to its relatively low conductivity.Herein, we have successfully incorporated tetrafluoro-tetracyano-quinodimethane(F4TCNQ) as an efficient p-type dopant for P3HT as a HTM in ss-DSCs.The introduction of F4TCNQ(1.0%, w/w) into P3HT film results in a significant increase of the bulk conductivity(more than 20 times), which dramatically improves the photovoltaic parameters, in particular, for the short-circuit current density and fill factor, leading to impressive power conversion efficiency(PCE) of 5.0%.This is the highest reported value for P3HT-based HTMs in ss-DSCs.Thus, molecualrly p-doping has been demonstrated to be an effective strategy for improving the electrical property and thereby the overall performance of ss-DSCs based on P3HT as a HTM.
Conducting polymer poly(3-hexylthiophene-2,5-diyl)(P3HT) has attracted intense research interest as hole-transporting materials(HTMs) in solid-state dye-sensitized solar cells(ss-DSCs).Nevertheless, pristine P3HT-based devices typically exhibit relatively poor overall performance, mainly due to its relatively low conductivity.Herein, we have successfully incorporated tetrafluoro-tetracyano-quinodimethane(F4TCNQ) as an efficient p-type dopant for P3HT as a HTM in ss-DSCs.The introduction of F4TCNQ(1.0%, w/w) into P3HT film results in a significant increase of the bulk conductivity(more than 20 times), which dramatically improves the photovoltaic parameters, in particular, for the short-circuit current density and fill factor, leading to impressive power conversion efficiency(PCE) of 5.0%.This is the highest reported value for P3HT-based HTMs in ss-DSCs.Thus, molecualrly p-doping has been demonstrated to be an effective strategy for improving the electrical property and thereby the overall performance of ss-DSCs based on P3HT as a HTM.
引文
[1]G.K.Mor,S.Kim,Nano Lett,2009,9,4250.
    [2]P.Pingel,D.Neher,Phys.Rev.B,2013,87,269.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700