Controlled Synthesis of Topological Insulator Nanoplate Arrays on Mica
- 28 March 2012
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 134 (14), 6132-6135
- https://doi.org/10.1021/ja3021395
Abstract
The orientation- and position-controlled synthesis of single-crystal topological insulator (Bi2Se3 and Bi2Te3) nanoplate arrays on mica substrates was achieved using van der Waals epitaxy. Individual ultrathin nanoplates with the lateral dimension up to ∼0.1 mm or uniform thickness down to 1–2 nm were produced. Single-Dirac-cone surface states of nanoplate aggregates were confirmed by angle-resolved photoemission spectroscopy measurements. The large-grain-size, single-crystal nanoplate arrays grown on mica can act as facile platforms for a combination of spectroscopy and in situ transport measurements, which may open up new avenues for studying exotic physical phenomena, surface chemical reactions, and modification in topological insulators.This publication has 31 references indexed in Scilit:
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