TY - JOUR
T1 - Metallic Conductivity in a Two-Dimensional Cobalt Dithiolene Metal-Organic Framework
AU - Clough, Andrew J.
AU - Skelton, Jonathan M.
AU - Downes, Courtney A.
AU - De La Rosa, Ashley A.
AU - Yoo, Joseph W.
AU - Walsh, Aron
AU - Melot, Brent C.
AU - Marinescu, Smaranda C.
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/8/9
Y1 - 2017/8/9
N2 - Two-dimensional (2D) metal-organic frameworks (MOFs) have received a great deal of attention due to their relatively high charge carrier mobility and low resistivity. Here we report on the temperature-dependent charge transport properties of a 2D cobalt 2,3,6,7,10,11-triphenylenehexathiolate framework. Variable temperature resistivity studies reveal a transition from a semiconducting to a metallic phase with decreasing temperature, which is unprecedented in MOFs. We find this transition to be highly dependent on the film thickness and the amount of solvent trapped in the pores, with density functional theory calculations of the electronic-structure supporting the complex metallic conductivity of the material. These results identify the first experimentally observed MOF that exhibits band-like metallic conductivity.
AB - Two-dimensional (2D) metal-organic frameworks (MOFs) have received a great deal of attention due to their relatively high charge carrier mobility and low resistivity. Here we report on the temperature-dependent charge transport properties of a 2D cobalt 2,3,6,7,10,11-triphenylenehexathiolate framework. Variable temperature resistivity studies reveal a transition from a semiconducting to a metallic phase with decreasing temperature, which is unprecedented in MOFs. We find this transition to be highly dependent on the film thickness and the amount of solvent trapped in the pores, with density functional theory calculations of the electronic-structure supporting the complex metallic conductivity of the material. These results identify the first experimentally observed MOF that exhibits band-like metallic conductivity.
UR - http://www.scopus.com/inward/record.url?scp=85027121954&partnerID=8YFLogxK
U2 - 10.1021/jacs.7b05742
DO - 10.1021/jacs.7b05742
M3 - Article
C2 - 28704606
AN - SCOPUS:85027121954
SN - 0002-7863
VL - 139
SP - 10863
EP - 10867
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 31
ER -