TY  - JOUR
AU  - Lennartz, M.C.
AU  - Baumert, M.
AU  - Karthäuser, S.
AU  - Albrecht, M.
AU  - Waser, R.
TI  - Dihydroxy (4-thiomorpholinomethyl) benzoic acids - From molecular asymmetry to diode characteristics
JO  - Langmuir
VL  - 27
SN  - 0743-7463
CY  - Washington, DC
PB  - ACS Publ.
M1  - PreJuSER-16723
PY  - 2011
N1  - This work was funded by the DFG (Grant SPP1243). We thank P. Kowalzik for the preparation of the gold samples and A. Besmehn for the execution of the XPS measurements.
AB  - One of the challenges in molecular electronics is to design molecules which can be used as functional units in electronic devices. The subject of our investigations is an asymmetrical molecule, dihydroxy(4-thiomorpholinomethyl)benzoic acid (TMBA), whose structural and electronic properties are characterized. The self-assembly behavior of TMBA on Au(111) surfaces resulting in highly ordered monolayers is obtained using scanning tunneling microscopy (STM). Furthermore, investigations on the electronic properties of the combined metal/molecule system reveal an orbital mediated tunneling process and tunneling decay constants for the carboxylic and thiomorpholino group. Thus, a diode-like character of TMBA is shown to be caused by intrinsic electronic properties of different molecular moieties.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:21749130
UR  - <Go to ISI:>//WOS:000293662800082
DO  - DOI:10.1021/la201206e
UR  - https://juser.fz-juelich.de/record/16723
ER  -