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Issue 30, 2017
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Tungsten–copper clusters assembled on porous alumina for optical limiting applications

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Abstract

Cluster assembly materials with unique electronic and optical properties are significant for a variety of potential applications but often susceptible to intermolecular interactions which may alter the performance determined by their individual components. For the first time, here we report the assembly of a pyridine-protected tungsten–copper cluster on porous alumina, and find superior optical limiting (OL) properties retainable for multilevel clustering due to unaffected reverse saturable absorption (RSA) and constant photo-excited triplet states. Also clarified is that this transition metal W–Cu cluster bears an interesting framework structure with reasonable stability reinforced by strong donor–acceptor charge-transfer interactions.

Graphical abstract: Tungsten–copper clusters assembled on porous alumina for optical limiting applications

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Supplementary files

Article information


Submitted
08 May 2017
Accepted
21 Jun 2017
First published
28 Jun 2017

J. Mater. Chem. C, 2017,5, 7561-7566
Article type
Paper

Tungsten–copper clusters assembled on porous alumina for optical limiting applications

H. Wu, C. Yuan and Z. Luo, J. Mater. Chem. C, 2017, 5, 7561
DOI: 10.1039/C7TC01990D

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