Dual Element Intercalation into 2D Layered Bi₂Se₃ Nanoribbons

Karen P Chen; Frank R Chung; Mengjing Wang; Kristie J Koski

doi:10.1021/jacs.5b00666

Dual Element Intercalation into 2D Layered Bi₂Se₃ Nanoribbons

J Am Chem Soc. 2015 Apr 29;137(16):5431-7. doi: 10.1021/jacs.5b00666. Epub 2015 Apr 15.

Authors

Karen P Chen¹, Frank R Chung¹, Mengjing Wang¹, Kristie J Koski¹

Affiliation

¹ Department of Chemistry, Brown University, 324 Brook St. Box H, Providence Rhode Island 02912, United States.

PMID: 25851420
DOI: 10.1021/jacs.5b00666

Abstract

We demonstrate the intercalation of multiple zero-valent atomic species into two-dimensional (2D) layered Bi2Se3 nanoribbons. Intercalation is performed chemically through a stepwise combination of disproportionation redox reactions, hydrazine reduction, or carbonyl decomposition. Traditional intercalation is electrochemical thus limiting intercalant guests to a single atomic species. We show that multiple zero-valent atoms can be intercalated through this chemical route into the host lattice of a 2D crystal. Intermetallic species exhibit unique structural ordering demonstrated in a variety of superlattice diffraction patterns. We believe this method is general and can be used to achieve a wide variety of new 2D materials previously inaccessible.