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Volumn 106, Issue 23, 1997, Pages 9869-9882

The band edge luminescence of surface modified CdSe nanocrystallites: Probing the luminescing state

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EID: 0000592050     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.473875     Document Type: Article
Times cited : (608)

References (78)
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    • The following references also investigate the optical/physical properties of QDs after chemical modification of the surface: S. A. Majetich and A. C. Carter, J. Phys. Chem. 97, 8727 (1993); S. A. Majetich, A. C. Carter, J. Belot, and R. D. McCullough, ibid. 98, 13705 (1994); O. I. Micic, J. Sprague, Z. Lu, and A. J. Nozik, Appl. Phys. Lett. (in press); O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas, and A. J. Nozik (unpublished); H. Mattoussi, A. W. Cumming, C. B. Murray, M. G. Bawendi, and R. Ober, J. Chem. Phys. 105, 9890 (1996); (unpublished).
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    • The following references also investigate the optical/physical properties of QDs after chemical modification of the surface: S. A. Majetich and A. C. Carter, J. Phys. Chem. 97, 8727 (1993); S. A. Majetich, A. C. Carter, J. Belot, and R. D. McCullough, ibid. 98, 13705 (1994); O. I. Micic, J. Sprague, Z. Lu, and A. J. Nozik, Appl. Phys. Lett. (in press); O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas, and A. J. Nozik (unpublished); H. Mattoussi, A. W. Cumming, C. B. Murray, M. G. Bawendi, and R. Ober, J. Chem. Phys. 105, 9890 (1996); (unpublished).
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    • in press
    • The following references also investigate the optical/physical properties of QDs after chemical modification of the surface: S. A. Majetich and A. C. Carter, J. Phys. Chem. 97, 8727 (1993); S. A. Majetich, A. C. Carter, J. Belot, and R. D. McCullough, ibid. 98, 13705 (1994); O. I. Micic, J. Sprague, Z. Lu, and A. J. Nozik, Appl. Phys. Lett. (in press); O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas, and A. J. Nozik (unpublished); H. Mattoussi, A. W. Cumming, C. B. Murray, M. G. Bawendi, and R. Ober, J. Chem. Phys. 105, 9890 (1996); (unpublished).
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    • unpublished
    • The following references also investigate the optical/physical properties of QDs after chemical modification of the surface: S. A. Majetich and A. C. Carter, J. Phys. Chem. 97, 8727 (1993); S. A. Majetich, A. C. Carter, J. Belot, and R. D. McCullough, ibid. 98, 13705 (1994); O. I. Micic, J. Sprague, Z. Lu, and A. J. Nozik, Appl. Phys. Lett. (in press); O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas, and A. J. Nozik (unpublished); H. Mattoussi, A. W. Cumming, C. B. Murray, M. G. Bawendi, and R. Ober, J. Chem. Phys. 105, 9890 (1996); (unpublished).
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    • The following references also investigate the optical/physical properties of QDs after chemical modification of the surface: S. A. Majetich and A. C. Carter, J. Phys. Chem. 97, 8727 (1993); S. A. Majetich, A. C. Carter, J. Belot, and R. D. McCullough, ibid. 98, 13705 (1994); O. I. Micic, J. Sprague, Z. Lu, and A. J. Nozik, Appl. Phys. Lett. (in press); O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas, and A. J. Nozik (unpublished); H. Mattoussi, A. W. Cumming, C. B. Murray, M. G. Bawendi, and R. Ober, J. Chem. Phys. 105, 9890 (1996); (unpublished).
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    • The estimate was determined by assuming that all the Cd added to the reaction was consumed to form a particular sized QD. In fact this value is an upper bound.
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    • Sizing of the QDs is determined from extensive TEM and SAXS measurements.
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    • By deep trap emission we refer to the near IR emission. Its exact origin is unknown but may be related to impurities or to vacancies on the surface of the QD.
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    • Here e is the charge of the carrier, ∈ is the static dielectric constant, and a is the effective radii of the QD. The following references give more detailed treatments of the Coulomb interaction: S. W. Koch, Y. Z. Hu, B. Fluegel, and N. Peyghambarian, J. Cryst. Growth 117, 592 (1992); Y. Z. Hu, M. Lindberg, and S. W. Koch, Phys. Rev. B 42, 1713 (1990).
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    • Here e is the charge of the carrier, ∈ is the static dielectric constant, and a is the effective radii of the QD. The following references give more detailed treatments of the Coulomb interaction: S. W. Koch, Y. Z. Hu, B. Fluegel, and N. Peyghambarian, J. Cryst. Growth 117, 592 (1992); Y. Z. Hu, M. Lindberg, and S. W. Koch, Phys. Rev. B 42, 1713 (1990).
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    • 6 in accordance with extensive TEM and SAXS measurements.
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    • The following references describe the enhanced electron-hole exchange interaction in low dimensional materials: R. Romestain and G. Fishman, Phys. Rev. B 49, 1774 (1994); T. Takagahara, ibid. 47, 4569 (1993); Y. Chen, B. Gil, P. Lefebre, H. Mathieu, T. Fukunaga, and N. Nakashima, in Excitons in Confined Systems, edited by R. del Sole et al., Springer Proceedings in Physics Vol. 25 (Springer, Berlin, 1987), p. 200; P. D. J. Calcott, K. J. Nash, L. T. Canham, M. J. Kane, and D. Brumhead, J. Phys. Condens. Matter 5, L91 (1993).
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    • The following references describe the enhanced electron-hole exchange interaction in low dimensional materials: R. Romestain and G. Fishman, Phys. Rev. B 49, 1774 (1994); T. Takagahara, ibid. 47, 4569 (1993); Y. Chen, B. Gil, P. Lefebre, H. Mathieu, T. Fukunaga, and N. Nakashima, in Excitons in Confined Systems, edited by R. del Sole et al., Springer Proceedings in Physics Vol. 25 (Springer, Berlin, 1987), p. 200; P. D. J. Calcott, K. J. Nash, L. T. Canham, M. J. Kane, and D. Brumhead, J. Phys. Condens. Matter 5, L91 (1993).
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    • The luminescence from single CdSe QDs has recently been reported. Our FLN spectra are only approximations as the true linewidths are much narrower; S. A. Empedocles, D. J. Norris, and M. G. Bawendi, Phys. Rev. Lett. 77, 3873 (1996).
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    • note
    • a=0.14 are in good agreement with experimental measurements in Ref. 17.


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