Conducting tin halides with a layered organic-based perovskite structure


Journal Article

THE discovery1 of high-temperature superconductivity in layered copper oxide perovskites has generated considerable fundamental and technological interest in this class of materials. Only a few other examples of conducting layered perovskites are known; these are also oxides such as (La 1-xSrx)n+1 MnnO3n+1 (ref. 2), Lan+1NinO3n+1 (ref. 3) and Ba n+1PbnO3n+1 (ref. 4), all of which exhibit a trend from semiconducting to metallic behaviour with increasing number of perovskite layers (n). We report here the synthesis of a family of organic-based layered halide perovskites, (C4H9NH3) 2(CH3NH3)n-1Snnl 3n+1 which show a similar transition from semiconducting to metallic behaviour with increasing n. The incorporation of an organic modulation layer between the conducting tin iodide sheets potentially provides greater flexibility for tuning the electrical properties of the perovskite sheets, and we suggest that such an approach will prove valuable for exploring the range of transport properties possible with layered perovskites. © 1994 Nature Publishing Group.

Full Text

Duke Authors

Cited Authors

  • Mitzi, DB; Feild, CA; Harrison, WTA; Guloy, AM

Published Date

  • January 1, 1994

Published In

Volume / Issue

  • 369 / 6480

Start / End Page

  • 467 - 469

International Standard Serial Number (ISSN)

  • 0028-0836

Digital Object Identifier (DOI)

  • 10.1038/369467a0

Citation Source

  • Scopus