A bicontinuous donor-acceptor hybrid heterostructure based on coordination and cation- interactions

作者：Li, Meng-Hua; You, Ming-Hua; Zhang, Jiang-Yan; Xiao, Wang-Chuan; Lin, Mei-Jin^*

来源：CrystEngComm, 2018, 20(48): 7795-7801.

DOI：10.1039/c8ce01526k

• ORGANIC FRAMEWORKS
• ELECTRON-TRANSFER
• PI INTERACTION
• NAPHTHALENE
• POLYMERS
• HETEROJUNCTIONS
• CRYSTAL
• SEMICONDUCTOR
• CONSTRUCTION
• FLUORESCENCE

Donor-acceptor heterostructures have attracted much interest in current optoelectronic technologies because they can control the charge dynamics in these applications. To improve the charge-carrier generation and transport properties, the donor and acceptor components in the heterostructures have a better interface at the molecular level with bicontinuous structures. So far, most available examples are obtained by a self-assembly approach from two organic semiconducting molecules. Considering the complementary properties of inorganic and organic semiconductors, the self-assembly of semiconductive inorganic and organic components in one material is anticipated to form abnormal hybrid heterostructures with synergetic properties. However, so far, only a few such hybrid heterostructures have been reported, most of which involved in the inorganic components as electron donors. Herein we reported that the combination of 2,5-bis-(4-pyridinium)thiazolo[5,4-d]thiazole (Py(2)TTz) with Cu2+ in the presence of acetonitrile by a solvothermal method led to a novel bicontinuous hybrid heterostructure [Cu-2(Py(2)TTz)(CN)(2)] 0.5(Py(2)TTz) (1) with semiconducting Py(2)TTz and in situ synthesized CuCN as the electron donor and acceptor components. Due to the strong coordination combined with cation- interactions between the two semiconducting components, this hybrid exhibits enhanced photocatalytic activities towards the degradation of methylene blue (MB), rhodamine B (RhB), and methyl orange (MO) in comparison with those of the two individual bulk semiconductive Py(2)TTz and CuCN.

• 出版日期2018-12-28
• 单位三明学院; 福州大学