A Surface Nanocavity Structure of Bisphenol P on TiO2 Showing Interfacial Charge-Transfer Absorption
A Surface Nanocavity Structure of Bisphenol P on TiO2 Showing Interfacial Charge-Transfer Absorption
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DOI：
10.1002/slct.201600357
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发表时间：
2016-10-16
期刊：
影响因子：
2.1
通讯作者：
Hanaya, Minoru
中科院分区：
文献类型：
--
作者：
Fujisawa, Jun-ichi;Matsumura, Shingo;Hanaya, Minoru
纳米腔结构为化学传感、分子识别和选择性化学提取提供了离子或分子内含物的重要功能。有机化合物在无机半导体表面的表面纳米腔结构是探索新型功能纳米结构的一个有趣的课题。在这篇文章中，我们展示了双酚P在宽带隙半导体二氧化钛（TiO 2）上形成的表面纳米腔结构。双酚P中的两个苯酚部分与TiO 2上的表面Ti原子的配位导致了有机-半导体纳米腔结构的形成。此外，纳米腔结构显示界面电荷转移（ICT）在可见光区的转变。ICT转变改变了纳米腔内部的电场分布，这表明了光学响应包含功能的可能性。我们的工作揭示了一种新型的功能性纳米腔结构。
Nanocavity structures provide important functions of ion or molecular inclusions for chemical sensing, molecular recognition, and selective chemical extraction. Architecture of surface nanocavity structures of organic compounds on inorganic semiconductor surfaces is an interesting subject for exploring novel functional nanostructures. In this communication, we demonstrate the formation of a surface nanocavity structure of bisphenol P on a wide-band-gap semiconductor titanium dioxide (TiO2)The coordination of the two phenol moieties in bisphenol P with surfaces Ti atoms on TiO2 leads to the formation of the organic-semiconductor nanocavity structure. In addition, the nanocavity structure shows interfacial chargetransfer (ICT) transitions in the visible region. The ICT transitions change the electric-field distribution inside the nanocavity, suggesting the possibility of optically responsive inclusion functions. Our work reveals a way toward a novel type of functional nanocavity structures.