Porous Semiconductor Chalcogenide Aerogels

By J. L. Mohanan, Indika U. Arachchige, S. Brock. Science, 2005

656 citations recorded by the source corpus.

Chalcogenide aerogels based entirely on semiconducting II-VI or IV-VI frameworks have been prepared from a general strategy that involves oxidative aggregation of metal chalcogenide nanoparticle building blocks followed by supercritical solvent removal. The resultant materials are mesoporous, exhibit high surface areas, can be prepared as monoliths, and demonstrate the characteristic quantum-confined optical properties of their nanoparticle components. These materials can be synthesized from a variety of building blocks by chemical or photochemical oxidation, and the properties can be further tuned by heat treatment. Aerogel formation represents a powerful yet facile method for metal chalcogenide nanoparticle assembly and the creation of mesoporous semiconductors.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

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Citations in the corpus

• Interactions between macromolecules and ions: The Hofmeister series. (2006, methodology): “This elegant work clearly shows that including polarizability is critical to obtaining the correct ion distribution as a function of distance from the interface as found by high pressure X-ray photoelectron spectroscopy experiments [ 45 ].”
• Aerogels in Aerospace: An Overview (2013, background): “The resulting semiconductor had a high porosity and surface area, and the characteristic quantumconfined optical properties were identical to their nanoparticle components [45].”
• Ultralight nanofibre-assembled cellular aerogels with superelasticity and multifunctionality (2014, methodology): “(4) The resultant FIBER NFAs are prepared by the”