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Volumn 312, Issue 5777, 2006, Pages 1196-1199

Imaging bond formation between a gold atom and pentacene on an insulating surface

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC PHYSICS; GOLD; INSULATING MATERIALS; ISOMERS; SCANNING TUNNELING MICROSCOPY; SEMICONDUCTOR JUNCTIONS; SURFACE PROPERTIES; THIN FILMS;

EID: 33744496274     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1126073     Document Type: Article
Times cited : (315)

References (22)
  • 11
    • 33744489404 scopus 로고    scopus 로고
    • note
    • In the example shown, the bond was formed by running a tunneling current of I = 2.5 pA through the LUMO of the pentacene at a bias voltage of V = +1.75 V. The high bias voltage required for manipulation results from the electronic resonances of the adsorbate and is not a measure of the energy barrier of the process induced.
  • 13
    • 33744504507 scopus 로고    scopus 로고
    • note
    • In the present case, the two similar orbital images for both polarities of the bias voltage are not a result of the type of bipolar tunneling, as observed recently for a copper-phthalocyanine molecule on an alumina film (14). Also, tunneling at bias voltages of several volts results in IET-induced bond breaking even at an extremely low current of <1 pA. Thus, the HOMO and the LUMO of the complexes could not be measured experimentally.
  • 15
    • 33744491065 scopus 로고    scopus 로고
    • note
    • The Au-pentacene complex was adsorbed on a slab of four layers of Cu with 54 Cu atoms per layer and two layers of NaCl molecules in a super cell. All atoms except the two lowermost Cu layers were geometrically relaxed. The surface Britain zone was sampled using a 2 × 2 wave-vector mesh. The plane-wave basis set was truncated at a kinetic energy of 400 eV.
  • 22
    • 33744492664 scopus 로고    scopus 로고
    • note
    • We thank R. Allenspach and S. Billeter for fruitful discussions. We acknowledge partial funding by the Academy of Finland; the Swedish Research Council (V.R.); the European Union projects CHIC, AMMIST, NANOSPECTRA, and NANOMAN; and allocation by computer resources by the Swedish National Allocations Committee.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.