Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) High resolution STM image of the (4√2 × 5√2)R45° structure of PTCDA on Cu(100). Here the influence of the thermal drift has been corrected (Ubias = 1.3 V, IT = 67 pA, 6.3 × 5.5 nm2). 3 × 3 unit cells and the van der Waals radii [13] of the PTCDA molecules are indicated (black lines). (b) Hardsphere model for the (4√2 × 5√2)R45° structure of PTCDA on Cu(100). Carbon atoms: dark grey, oxygen atoms: red, and hydrogen atoms: white, copper atoms light grey. Further details see text.
