Selenium/Zeolite Y Nanocomposites

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• 作者：Andreas Goldbach and Marie-Louise Saboungi
• 刊名：Accounts of Chemical Research
• 出版年：2005
• 出版时间：September 2005
• 年：2005
• 卷：38
• 期：9
• 页码：705 - 712
• 全文大小：327K
• 年卷期：v.38,no.9(September 2005)
• ISSN：1520-4898

文摘

Confinement in molecular sieves is a promising strategy forfabricating nanostructured semiconductor assemblies with a highlyuniform size and shape distribution. However, disorder effects oftenhamper the engineering of matrix-embedded cluster materials withspecific properties. The host-guest interaction is a key factor foroptimizing their structure, electronic characteristics, and stability.In this Account, we describe how the interplay between confinedselenium and extraframework cations in zeolite hosts can be usedto tailor these properties and to produce well-defined semiconductor nanocomposites with band gaps in the visible range.