☆ 4.8 Article

Unprecedented Binary Semiconductors Based on TCNQ: Single-Crystal X-ray Studies and Physical Properties of Cu(TCNQX2) X= Cl, Br

ADVANCED MATERIALS (2010)

Journal

ADVANCED MATERIALS

Volume 22, Issue 9, Pages 986-+

Publisher

WILEY-BLACKWELL

DOI: 10.1002/adma.200903217

Keywords

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Categories

Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter

Funding

DOE [DE-FG02-02ER45999]
NSF [CHE-0610019, NSF-9974899, NSF-9807975]
Welch Foundation [A-1449]
Division Of Chemistry
Direct For Mathematical & Physical Scien [0957840] Funding Source: National Science Foundation

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Abstract

Single crystals of a new structure type for the M+(TCNQ)(center dot-) binary family are isolated from reactions of dihalogenated TCNQ derivatives and Cu-I ions (see figure; Cu: pink C: black, N: blue, Br: orange, H: light blue). The new compound Cu(TCNQCl(2)) exhibits the highest conductivity of the M+(TCNQ)(center dot-) series to date, despite the larger separation of TCNQCl(2) units in the stacks. Conductive properties of Cu(TCNQX(2)) where X=Cl, Br is attributed to charge-carrier transport through copper ions, which is unprecedented in M+(TCNQ)(center dot-) materials.

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