Molecular aggregates in conjugated polymer（CP） solution can propagate into mesoscale morphology of the relevant film and further dominate the optoelectronic property. Herein, we probed the aggregation behavior of p...Molecular aggregates in conjugated polymer（CP） solution can propagate into mesoscale morphology of the relevant film and further dominate the optoelectronic property. Herein, we probed the aggregation behavior of poly（9,9-dioctylfluorene-2,7-diyl）（PFO） and studied its influence on the photophysical property in 1,2-dichloroethane（DCE） solution, where the contents of β-phase or-aggregates increased with prolonged aging time. Thereinto, high quality β-film was fabricated from DCE solution with critical aggregate time of 6 min. The film exhibited excellent surface morphology and characteristic emission of β-phase. Meanwhile, films prepared from aged DCE solutions exhibited high crystallinity, which was promising to obtain higher photoluminance efficiency and charge transport ability simultaneously. Therefore, it is significant to get deep insight into the aggregation behavior of CP, which is involved not only with the solution-processing technology of plastic device, but also with the optoelectronic property of CP.展开更多
Conjugated Polymers(CPs)have been extensively explored in academia and industry since the discovery of conducting polymers in 1977[1],owing to their solution processability,structural tunability,and potential applicat...Conjugated Polymers(CPs)have been extensively explored in academia and industry since the discovery of conducting polymers in 1977[1],owing to their solution processability,structural tunability,and potential applications in a wide variety of optoelectronic devices,such as organic light-emitting diodes(OLED),organic photovoltatics(OPV)and organic field-effect transistors(OFET).展开更多
基金financially supported by the National Key Basic Research Program of China(973)(No.2015CB932200)the National Natural Science Funds for Excellent Young Scholar(No.21322402)+6 种基金the National Natural Science Foundation of China(Nos.21504041,21274064 and 61475074)University of Jiangsu Province Natural Science Foundation Project(No.14KJB510027)Natural Science of the Education Committee of Jiangsu Province(No.15KJB430019)Jiangsu Planned Projects for Postdoctoral Research Funds(No.1501019B)China Postdoctoral Science Foundation(No.2015M580419)SICAM Fellowship,Imperial College LondonOpen Project from State Key Laboratory of Supramolecular Structure and Materials at Jilin University(No.sklssm201612)
文摘Molecular aggregates in conjugated polymer（CP） solution can propagate into mesoscale morphology of the relevant film and further dominate the optoelectronic property. Herein, we probed the aggregation behavior of poly（9,9-dioctylfluorene-2,7-diyl）（PFO） and studied its influence on the photophysical property in 1,2-dichloroethane（DCE） solution, where the contents of β-phase or-aggregates increased with prolonged aging time. Thereinto, high quality β-film was fabricated from DCE solution with critical aggregate time of 6 min. The film exhibited excellent surface morphology and characteristic emission of β-phase. Meanwhile, films prepared from aged DCE solutions exhibited high crystallinity, which was promising to obtain higher photoluminance efficiency and charge transport ability simultaneously. Therefore, it is significant to get deep insight into the aggregation behavior of CP, which is involved not only with the solution-processing technology of plastic device, but also with the optoelectronic property of CP.
基金the National Natural Science Foundation of China(22075136 and 61874053)National Key Research and Development Program of China(2020YFA0709900)+6 种基金Natural Science Funds of the Education Committee of Jiangsu Province(18KJA430009)Natural Science Foundation of Jiangsu Province(BK20200700)‘‘High-Level Talents in Six Industries”of Jiangsu Province(XYDXX-019)China Postdoctoral Science Foundation(2021M692623)the open research fund from State Key Laboratory of Supramolecular Structure and Materials(sklssm202108)Anhui Province Key Laboratory of Environment-friendly Polymer MaterialsAnhui Province Key Laboratory of Optoelectronic Materials Science and Technology。
文摘Conjugated Polymers(CPs)have been extensively explored in academia and industry since the discovery of conducting polymers in 1977[1],owing to their solution processability,structural tunability,and potential applications in a wide variety of optoelectronic devices,such as organic light-emitting diodes(OLED),organic photovoltatics(OPV)and organic field-effect transistors(OFET).
