有机集成化光电子器件兼具了小型化和多功能性的优势,如集成了有机发光和紫外探测的有机发光紫外探测器件(OLED-UVOPDs).这种器件中的有机光电材料的设计仍然面临重大的挑战.在本文中,以蒽为π桥,腈基苯为受体,三苯胺(TPA)和二甲基三苯...有机集成化光电子器件兼具了小型化和多功能性的优势,如集成了有机发光和紫外探测的有机发光紫外探测器件(OLED-UVOPDs).这种器件中的有机光电材料的设计仍然面临重大的挑战.在本文中,以蒽为π桥,腈基苯为受体,三苯胺(TPA)和二甲基三苯胺(2mTPA)分别为给体,设计并合成了两种可用于OLED-UVOPD器件的蓝色发光分子,TPA-AN和2mTPA-AN.它们的发光峰分别位于474和488 nm处,荧光量子产率为51.1%和46.6%.通过单载流子器件计算得到其电子迁移率分别为3.96×10^(-5)和6.63×10^(-7)cm^(2)V^(-1)s^(-1).基于TPA-AN的OLED器件表现出强的蓝光发射,最大亮度为43,110 cd m^(-2),最大外量子效率(EQE)为8.1%.它们在OLED-UVOPD集成器件中表现出优异的性能,紫外探测率分别为7.18×10^(11)和2.85×10^(12)Jones,最大EQE分别为8.7%和5.9%.展开更多
Hydrothermal treatment of Mo(CO)6, norfloxacin (H-Norf) and dilute hydroxide sodium solution in Pyrex Also 1 displays blue fluorescent emissions at 416～436 nm in the solid state upon irradiation by UV light. CCDC:241...Hydrothermal treatment of Mo(CO)6, norfloxacin (H-Norf) and dilute hydroxide sodium solution in Pyrex Also 1 displays blue fluorescent emissions at 416～436 nm in the solid state upon irradiation by UV light. CCDC:241564.展开更多
A novel two-photon absorption material with spiorsilabifluorene as π-conjugated bridge,and electron-donating triphenylamine as the terminal groups was synthesized,which consists of a typical D-π-D structure.The nonl...A novel two-photon absorption material with spiorsilabifluorene as π-conjugated bridge,and electron-donating triphenylamine as the terminal groups was synthesized,which consists of a typical D-π-D structure.The nonlinear optical properties,glass transition temperature and two-photon fluorescence imaging have been characterized.Experimental results show that the optimal combination of nonlinearity、transparency and thermal stability of two-photon absorption material can be achieved by introducing spiorsilabifluorene as π-conjugated bridge,and indicate that the new π-conjugated bridge benefits blue emission.This is an entirely new concept,which may open a new pathway to the design and synthesis of two-photon absorption materials,and has attractive prospect.展开更多
基金financially supported by the Joint Funds of the National Natural Science Foundation of China (NSFC,U21A20492)NSFC (61705156,60976018,and 61605138)+2 种基金the Key R&D program of Shanxi Province (International Cooperation,201903D421087,201903D121100)Shanxi Scholarship Council of China (2020-049)Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering (2021SX-FR007)。
文摘有机集成化光电子器件兼具了小型化和多功能性的优势,如集成了有机发光和紫外探测的有机发光紫外探测器件(OLED-UVOPDs).这种器件中的有机光电材料的设计仍然面临重大的挑战.在本文中,以蒽为π桥,腈基苯为受体,三苯胺(TPA)和二甲基三苯胺(2mTPA)分别为给体,设计并合成了两种可用于OLED-UVOPD器件的蓝色发光分子,TPA-AN和2mTPA-AN.它们的发光峰分别位于474和488 nm处,荧光量子产率为51.1%和46.6%.通过单载流子器件计算得到其电子迁移率分别为3.96×10^(-5)和6.63×10^(-7)cm^(2)V^(-1)s^(-1).基于TPA-AN的OLED器件表现出强的蓝光发射,最大亮度为43,110 cd m^(-2),最大外量子效率(EQE)为8.1%.它们在OLED-UVOPD集成器件中表现出优异的性能,紫外探测率分别为7.18×10^(11)和2.85×10^(12)Jones,最大EQE分别为8.7%和5.9%.
基金supported by the National Natural Science Foundation of China(51203138,51273179)National Key Basic Research Program of China(973)(2011CBA00700)International S&T Cooperation Program,China(2012DFA51210)~~
文摘Hydrothermal treatment of Mo(CO)6, norfloxacin (H-Norf) and dilute hydroxide sodium solution in Pyrex Also 1 displays blue fluorescent emissions at 416～436 nm in the solid state upon irradiation by UV light. CCDC:241564.
文摘A novel two-photon absorption material with spiorsilabifluorene as π-conjugated bridge,and electron-donating triphenylamine as the terminal groups was synthesized,which consists of a typical D-π-D structure.The nonlinear optical properties,glass transition temperature and two-photon fluorescence imaging have been characterized.Experimental results show that the optimal combination of nonlinearity、transparency and thermal stability of two-photon absorption material can be achieved by introducing spiorsilabifluorene as π-conjugated bridge,and indicate that the new π-conjugated bridge benefits blue emission.This is an entirely new concept,which may open a new pathway to the design and synthesis of two-photon absorption materials,and has attractive prospect.
