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Volumn 11, Issue 15, 1999, Pages 1243-1256

Photoluminescence from single semiconductor nanostructures

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC FIELD EFFECTS; EMISSION SPECTROSCOPY; NANOSTRUCTURED MATERIALS; SEMICONDUCTING CADMIUM COMPOUNDS;

EID: 0033362658     PISSN: 09359648     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-4095(199910)11:15<1243::AID-ADMA1243>3.0.CO;2-2     Document Type: Article
Times cited : (324)

References (66)
  • 32
    • 0028454991 scopus 로고
    • H. Hess, Science 1994, 264, 1740.
    • (1994) Science , vol.264 , pp. 1740
    • Hess, H.1
  • 40
    • 85037968719 scopus 로고    scopus 로고
    • note
    • This result is only strictly true for a radiating dipole in free space, observed through a lens with an infinitely small collection angle. In reality, the large numerical aperture of the microscope objective used (NA = 0.7) allows some detection of light emitted parallel to the collection axis, which means that, in principle, some "bright axis" transitions can be found that do not show 100 % polarization. In practice, however, these dipoles are rarely seen since they also emit the least amount of light in the direction of the detector. As a result, virtually all single chromophores with a "bright axis" show 100 % polarization. Later in this review, we will explicitly address the effects of collection angle and the radiation pattern of a dipole on a dielectric surface.
  • 54
    • 85037960291 scopus 로고    scopus 로고
    • note
    • In these experiments the nanocrystals were excited far above the band edge, in a region with a high density of states and should therefore be relatively insensitive to small spectral diffusion shifts. However, even in ensemble excitation spectra, shifts as large as those observed in Figure 13 could be enough to move the inhomogeneously broadened absorbing state out of resonance with the exciting laser.
  • 55
    • 85037965275 scopus 로고    scopus 로고
    • Ph. D. Thesis, Massachusetts Institute of Technology
    • A. Sacra, Ph. D. Thesis, Massachusetts Institute of Technology 1996.
    • (1996)
    • Sacra, A.1
  • 61
    • 85037968468 scopus 로고    scopus 로고
    • note
    • What is measured in these experiments is actually the difference between the excited-and ground-state dipole (polarizability). For simplicity in discussion, however, we refer to this value as the excited-state dipole (polarizability). This is a reasonable assertion since, to a first approximation, any structural (ground state) dipole (polarizability) should be relatively unaffected by the presence of a delocalized excitation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.