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Probing individual weakly-coupled π-conjugated molecules on semiconductor surfaces
Münnich, Gerhard, Albrecht, Florian, Nacci, Christophe, Utz, Martin, Schuh, Dieter, Kanisawa, Kiyoshi, Fölsch, Stefan and Repp, Jascha
(2012)
Probing individual weakly-coupled π-conjugated molecules on semiconductor surfaces.
Journal of Applied Physics 112 (3), 034312.
Date of publication of this fulltext: 28 Aug 2012 07:43
Article
DOI to cite this document: 10.5283/epub.25734
Abstract
A weak perturbation of a single molecule by the supporting substrate is a key ingredient to molecular electronics. Here, we show that individual phthalocyanine molecules adsorbed on GaAs(110) and InAs(111)A surfaces represent prototypes for weakly coupled single-molecule/semiconductor hybrid systems. This is demonstrated by scanning tunneling spectroscopy and bias-dependent images that closely ...
A weak perturbation of a single molecule by the supporting substrate is a key ingredient to molecular electronics. Here, we show that individual phthalocyanine molecules adsorbed on GaAs(110) and InAs(111)A surfaces represent prototypes for weakly coupled single-molecule/semiconductor hybrid systems. This is demonstrated by scanning tunneling spectroscopy and bias-dependent images that closely resemble orbital densities of the free molecule. This is in analogy to results for molecules decoupled from a metal substrate by an ultrathin insulating layer and proves a weak electronic molecule-substrate coupling. Therefore, such systems will allow single-molecule functionality to be combined with the versatility of semiconductor physics. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742977]
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| Item type | Article | ||||||
| Journal or Publication Title | Journal of Applied Physics | ||||||
| Publisher: | AMER INST PHYSICS | ||||||
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| Place of Publication: | MELVILLE | ||||||
| Volume: | 112 | ||||||
| Number of Issue or Book Chapter: | 3 | ||||||
| Page Range: | 034312 | ||||||
| Date | 8 August 2012 | ||||||
| Institutions | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Group Jascha Repp | ||||||
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| Classification |
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| Keywords | SCANNING-TUNNELING-MICROSCOPY; METAL PHTHALOCYANINES; ELECTRONIC-STRUCTURE; GAAS(110) SURFACE; SI(100) SURFACE; SPECTROSCOPY; ADSORPTION; CHEMISTRY; DEVICES; VACANCY; | ||||||
| Dewey Decimal Classification | 500 Science > 530 Physics 500 Science > 540 Chemistry & allied sciences | ||||||
| Status | Published | ||||||
| Refereed | Yes, this version has been refereed | ||||||
| Created at the University of Regensburg | Yes | ||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-257345 | ||||||
| Item ID | 25734 |
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