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A Bicontinuous Donor-Acceptor Hybrid Heterostructure Based on Coordination and Cation-π Interactions

Abstract

The 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 two components in the heterostructures have 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 few such hybrid heterostructures have been reported, but 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 (Py2TTz) with Cu2+ in the presence of acetonitrile by solvothermal method led to a novel bicontinuous hybrid heterostructure [Cu2(Py2TTz)(CN)2]•0.5(Py2TTz)(1) with semiconducting Py2TTz and in-situ synthesized CuCN as the electron donor and acceptor components. Due to the strong coordination combined with cation-π interactions between 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 to those of two individual bulk semiconductive Py2TTz and CuCN.

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Publication details

The article was received on 08 Sep 2018, accepted on 01 Nov 2018 and first published on 01 Nov 2018


Article type: Paper
DOI: 10.1039/C8CE01526K
Citation: CrystEngComm, 2018, Accepted Manuscript
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    A Bicontinuous Donor-Acceptor Hybrid Heterostructure Based on Coordination and Cation-π Interactions

    M. Li, M. You, J. Zhang, W. xiao and M. Lin, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE01526K

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