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Volumn 299, Issue 5606, 2003, Pages 542-546

Vibrationally resolved fluorescence excited with submolecular precision

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRON TUNNELING; PHOTONS; PORPHYRINS; SCANNING TUNNELING MICROSCOPY;

EID: 0037462546     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1078675     Document Type: Article
Times cited : (581)

References (40)
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    • S. Weiss, Science 283, 1676 (1999).
    • (1999) Science , vol.283 , pp. 1676
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    • R. Berndt et al., Science 262, 1425 (1993).
    • (1993) Science , vol.262 , pp. 1425
    • Berndt, R.1
  • 17
    • 0346221646 scopus 로고    scopus 로고
    • note
    • + sputtering and annealing before use.
  • 18
    • 0347482743 scopus 로고    scopus 로고
    • note
    • -5 for W (measured on the NiAl substrate, using sample voltages of ∼2.3 V). These numbers were obtained by integrating the photon counts over the spectral region from 600 to 1000 nm (where the molecular light emission was usually observed) and dividing the result by the detection efficiency of our system (∼0.1%, as estimated from the properties of our optical components and CCD camera). Our quantum efficiencies are comparable to the published values (10).
  • 19
    • 0346221645 scopus 로고    scopus 로고
    • note
    • + sputtering and annealing at 1300 K.
  • 27
    • 0347482702 scopus 로고    scopus 로고
    • note
    • For positive bias, most of the plasmon excitation events occur close to the metal substrate (39) inside the oxide film, where the plasmon field is expected to be weaker than in vacuum. The weak emission from the oxide can be attributed to inefficient coupling between plasmons and IET current.
  • 29
    • 0346221586 scopus 로고    scopus 로고
    • note
    • In a more accurate analysis, the finite voltage drop in the oxide film and the shift of the molecular orbital energies induced by the bias voltage must both be considered.
  • 33
    • 0346221585 scopus 로고    scopus 로고
    • note
    • NiAl(λ) are slowly changing functions in the narrow energy region where molecular fluorescence is observed, then the relative intensities of the vibrational peaks on top of the IET background in Fig. 5C must be close to the actual intensities.
  • 40
    • 0346221584 scopus 로고    scopus 로고
    • note
    • We are greatly indebted to N. Nilius and D. L. Mills for insightful discussions. Supported by the Chemical Science, Geo- and Bioscience Division, Office of Science, U.S. Department of Energy, under grant DEFG03-01ER15157.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.