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Volumn 86, Issue 11, 1999, Pages 6128-6134

Analysis of the stretched exponential photoluminescence decay from nanometer-sized silicon crystals in SiO2

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[No Author keywords available]

Indexed keywords


EID: 0001628122     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.371663     Document Type: Article
Times cited : (322)

References (48)
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    • Light emission from silicon: Progress towards Si-based optoelectronics
    • Proceedings of E-MRS
    • For recent articles see Proceedings of E-MRS, Light emission from silicon: progress towards Si-based optoelectronics, J. Lumin. 80 (1999).
    • (1999) J. Lumin. , vol.80
  • 7
    • 4243571094 scopus 로고
    • N. A. Hill and K. B. Whaley, J. Electron. Mater. 25, 269 (1996); Phys. Rev. Lett. 75, 1130 (1995).
    • (1995) Phys. Rev. Lett. , vol.75 , pp. 1130
  • 32
    • 85034559194 scopus 로고    scopus 로고
    • note
    • In a few cases the derivative of Eq. (1) was also introduced for fitting of the decay.
  • 33
    • 0029229245 scopus 로고
    • Using the free carrier absorption technique, indeed, it was demonstrated that the total free carrier (i.e. excited carriers) concentration scales essentially linearly with the wavelength-integrated PL yield in porous Si, see: V. Grivickas and J. Linnros, Mater. Res. Soc. Symp. Proc. 358, 543 (1995); Thin Solid Films 255, 70 (1995).
    • (1995) Mater. Res. Soc. Symp. Proc. , vol.358 , pp. 543
    • Grivickas, V.1    Linnros, J.2
  • 34
    • 0029229245 scopus 로고
    • Using the free carrier absorption technique, indeed, it was demonstrated that the total free carrier (i.e. excited carriers) concentration scales essentially linearly with the wavelength-integrated PL yield in porous Si, see: V. Grivickas and J. Linnros, Mater. Res. Soc. Symp. Proc. 358, 543 (1995); Thin Solid Films 255, 70 (1995).
    • (1995) Thin Solid Films , vol.255 , pp. 70
  • 36
    • 85034529873 scopus 로고    scopus 로고
    • note
    • The interconnected network of porous Si, indeed, fulfills the requirements of such a system where potential barriers between nanocrystals form migration barriers and larger crystals, with correspondingly smaller effective band gap, serve as temporary traps.
  • 37
    • 85034536336 scopus 로고    scopus 로고
    • private communication
    • C. Delerue (private communication); E. Martin, C. Delerue, G. Allan, and M. Lannoo, Phys. Rev. B 50, 18 258 (1994).
    • Delerue, C.1
  • 39
    • 85034545752 scopus 로고    scopus 로고
    • note
    • + isotope was used and contamination from other molecules with the same mass/charge ratio cannot be excluded.
  • 41
    • 3242832034 scopus 로고
    • PhD thesis, Bibliotekets Reproservice, Göteborg
    • In the calculations progressive erosion of the sample by sputtering was not taken into account. For a sputtering coefficient of ∼0.5 (H. Jacobsson, PhD thesis, Bibliotekets Reproservice, Göteborg, 1993) a 200 Å loss of material would be expected at maximum dose leading to a slightly modified depth distribution.
    • (1993)
    • Jacobsson, H.1
  • 44
    • 85034533424 scopus 로고    scopus 로고
    • note
    • The higher yields of the samples implanted at 37 keV, compared to those implanted at 40 keV, is most likely related to a higher peak atomic concentration combined with a PL saturation at high doses.
  • 45
    • 85034541391 scopus 로고    scopus 로고
    • note
    • A further reason for the increased lifetime might be that the system of nanocrystals has fewer interconnecting pathways, effectively reducing the diffusion of excitons.
  • 47
    • 85034553631 scopus 로고    scopus 로고
    • note
    • At the high annealing temperatures used one would not expect different crystal shapes as free energy considerations would favor a particular shape, e.g., spherical nanocrystals.
  • 48
    • 85034554566 scopus 로고    scopus 로고
    • note
    • 2 matrix in proximity to a silicon layer.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.