Synthesis in ionic liquids: [Bi2Te2Br](AlCl 4), a direct gap semiconductor with a cationic framework

Kanishka Biswas, Qichun Zhang, In Chung, Jung Hwan Song, John Androulakis, Arthur J Freeman, Mercouri Kanatzidis

Research output: Contribution to journalArticlepeer-review

107 Scopus citations


The Lewis acidic ionic liquid EMIMBr-AlCl3 (EMIM = 1-ethyl-3-methylimidazolium) allows a novel synthetic route to the semiconducting layered metal chalcogenides halide [Bi2Te 2Br]-(AlCl4) and its Sb analogue. [Bi2Te 2Br](AlCl4) is a direct band gap, strongly anisotropic semiconductor and consists of cationic infinite layers of [Bi2Te 2Br]+ and [AlCl4] anions inserted between the layers.

Original languageEnglish (US)
Pages (from-to)14760-14762
Number of pages3
JournalJournal of the American Chemical Society
Issue number42
StatePublished - Oct 27 2010

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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