Volume 90 Issue 16 | p. 10 | News of The Week
Issue Date: April 16, 2012

Nanoparticle Arrays For Faster Electronics

Materials Science: First uniform arrays of topological insulators grown
Department: Science & Technology
News Channels: Nano SCENE, Materials SCENE, JACS In C&EN
Keywords: topological insulators, bismuth selenide, bismuth telluride, mica, nanoplate, spin, spintronic

Chemists in China have grown precise arrays of ultrathin flakes of bismuth selenide and bismuth telluride on a surface (J. Am. Chem. Soc., DOI: 10.1021/ja3021395). The bismuth compounds belong to a recently discovered class of materials called topological insulators, which researchers think promise a new realm of fast, energy-efficient electronic devices and computers.

Making well-defined arrays of topological insulator nanoparticles is a key step toward . . .

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