The design of single-component broadband photoemitters with high stability is imperative for the development of next-generation WLEDs.In this work,1D cationic haloplumbate chains and rigid luminescent naphthalene dica...The design of single-component broadband photoemitters with high stability is imperative for the development of next-generation WLEDs.In this work,1D cationic haloplumbate chains and rigid luminescent naphthalene dicarboxylate(2,6-ndc)with a larger conjugated system were used to construct crystalline single-component broadband photoemitters.展开更多
Two triphenylmethylphosphonium/haloplumbate hybrids,i.e.,[(PPh3Me)2(Pb2I6)∙CH3CN]n(1)and[(PPh3Me)(PbBr3)]n(2),have been prepared,in which the(PbX3)nn-nanochains built from face-sharing PbX6 octahedra are surrounded by...Two triphenylmethylphosphonium/haloplumbate hybrids,i.e.,[(PPh3Me)2(Pb2I6)∙CH3CN]n(1)and[(PPh3Me)(PbBr3)]n(2),have been prepared,in which the(PbX3)nn-nanochains built from face-sharing PbX6 octahedra are surrounded by organic templates to assemble the core-shell quantum well.Besides,C−H…πinteractions among Ph3PMe+cations can also be detected,which give rise to the 2-D organic layer of 1 and 1-D chain for 2.The good water stabilities could be induced by the strong C−H…πinteractions,which can deter the hydrolysis reaction.The energy band gaps of this work mainly derive from the charge transfer of organic components,but their luminescence stems from the inorganic(PbX3)nn-nanochains with co-existence of free excitons and self-trapped excitons.At temperature lower than 117 K,strong quantum confinement will rule out the free excitons,and self-trapped excitons will dominate,resulting in red-shift luminescence.Moreover,effective and repeatable photocurrent responses can be found in these hybrids.展开更多
基金supported by National Natural Science Foundation of China(No.21771038)National Natural Science Foundation of Fujian Province(2018J01684)the Open Project Program of the State Key Laboratory of Photocatalysis on Energy and Environment(Grant No.SKLPEE-202021,SKLPEE-202022),Fuzhou University.
文摘The design of single-component broadband photoemitters with high stability is imperative for the development of next-generation WLEDs.In this work,1D cationic haloplumbate chains and rigid luminescent naphthalene dicarboxylate(2,6-ndc)with a larger conjugated system were used to construct crystalline single-component broadband photoemitters.
基金the National Natural Science Foundation of China(No.22078065)。
文摘Two triphenylmethylphosphonium/haloplumbate hybrids,i.e.,[(PPh3Me)2(Pb2I6)∙CH3CN]n(1)and[(PPh3Me)(PbBr3)]n(2),have been prepared,in which the(PbX3)nn-nanochains built from face-sharing PbX6 octahedra are surrounded by organic templates to assemble the core-shell quantum well.Besides,C−H…πinteractions among Ph3PMe+cations can also be detected,which give rise to the 2-D organic layer of 1 and 1-D chain for 2.The good water stabilities could be induced by the strong C−H…πinteractions,which can deter the hydrolysis reaction.The energy band gaps of this work mainly derive from the charge transfer of organic components,but their luminescence stems from the inorganic(PbX3)nn-nanochains with co-existence of free excitons and self-trapped excitons.At temperature lower than 117 K,strong quantum confinement will rule out the free excitons,and self-trapped excitons will dominate,resulting in red-shift luminescence.Moreover,effective and repeatable photocurrent responses can be found in these hybrids.
