TY  - JOUR
AU  - Esat, Taner
AU  - Friedrich, Niklas
AU  - Tautz, F. Stefan
AU  - Temirov, Ruslan
TI  - A standing molecule as a single-electron field emitter
JO  - Nature 
VL  - 558
IS  - 7711
SN  - 0028-0836
CY  - London [u.a.]
PB  - Nature Publ. Group
M1  - FZJ-2018-02048
SP  - 573 - 576
PY  - 2018
AB  - Scanning probe microscopy makes it possible to image and spectroscopically characterize nanoscale objects, and to manipulate1,2,3 and excite4,5,6,7,8 them; even time-resolved experiments are now routinely achieved9,10. This combination of capabilities has enabled proof-of-principle demonstrations of nanoscale devices, including logic operations based on molecular cascades11, a single-atom transistor12, a single-atom magnetic memory cell13 and a kilobyte atomic memory14. However, a key challenge is fabricating device structures that can overcome their attraction to the underlying surface and thus protrude from the two-dimensional flatlands of the surface. Here we demonstrate the fabrication of such a structure: we use the tip of a scanning probe microscope to lift a large planar aromatic molecule (3,4,9,10-perylenetetracarboxylic-dianhydride) into an upright, standing geometry on a pedestal of two metal (silver) adatoms. This atypical and surprisingly stable upright orientation of the single molecule, which under all known circumstances adsorbs flat on metals15,16, enables the system to function as a coherent single-electron field emitter. We anticipate that other metastable adsorbate configurations might also be accessible, thereby opening up the third dimension for the design of functional nanostructures on surfaces.
LB  - PUB:(DE-HGF)16
C6  - pmid:29950622
UR  - <Go to ISI:>//WOS:000436594300057
DO  - DOI:10.1038/s41586-018-0223-y
UR  - https://juser.fz-juelich.de/record/844653
ER  -