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Luminescence of nanocrystalline ZnS:Pb2+

Published online by Cambridge University Press:  21 March 2011

Ageeth A. Bol  and
Andries Meijerink
Ageeth A. Bol
Affiliation:
Debye Institute, Physics and Chemistry of Condensed Matter, Utrecht UniversityP.O. Box 80 000, 3508 TA Utrecht, The Netherlands Fax: +31 30 253 2403E-mail: [email protected]
Andries Meijerink
Affiliation:
Debye Institute, Physics and Chemistry of Condensed Matter, Utrecht UniversityP.O. Box 80 000, 3508 TA Utrecht, The NetherlandsFax: +31 30 253 2403
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Abstract

Nanocrystalline ZnS:Pb2+ is synthesized via a precipitation method. The luminescence is studied and the influence of the size of the nanocrystals on the luminescence properties is investigated. Nanocrystalline ZnS:Pb2+ shows a white emission under UV excitation. At least two luminescence centers are involved. One center is identified as a Pb2+ ion located on a regular Zn2+ site and gives a red emission under 480 nm excitation. The luminescence properties of this emission are characteristic for transitions on Pb2+ ions. The other centers are not as well defined and give a broad green emission band under 380 nm excitation and also show luminescence properties typically observed for Pb2+. The green emission probably originates from a charge-transfer like D-band emission of Pb2+ in ZnS close to a defect (e.g. an S2− vacancy or an O2− ion on an S2− site). A relation between the temperature quenching of the emissions and the band gap is observed and indicates that photoionization occurs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 667: Symposium G – Luminescence and Luminescent Materials , 2001 , G4.7
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

[1] Rossetti, R., Hull, R., Gibson, J. M. and Brus, L. E., J. Chem. Phys. 82, 552 (1985).Google Scholar
[2] Brus, L., J. Phys. Chem. 90, 2555 (1986).Google Scholar
[3] Henglein, A., Chem. Rev. 89, 1861(1989).Google Scholar
[4] Wang, Y. and Herron, N., J. Phys. Chem. 95, 525 (1991).Google Scholar
[5] Bhargava, R. N. and Gallagher, D., Phys. Rev. Lett. 72, 416 (1994).Google Scholar
[6] Murase, N., Jagannathan, R., Kanematsu, Y., Watanabe, M., Kurita, A., Hirata, K., Yazawa, T. and Kushida, T., J. Phys. Chem. B 103, 754(1999).Google Scholar
[7] Bol, A. A. and Meijerink, A., Phys. Rev. B 58, R15997 (1998).Google Scholar
[8] Ranfagni, A., Mugnai, M., Bacci, M., Viliani, G. and Fontana, M. P., Adv. Physics 32, 823 (1982).Google Scholar
[9] Blasse, G. and Grabmaier, B. C., Luminescent Materials (Springer Verlag, 1994).Google Scholar
[10] Yu, I., Isobe, T. and Senna, M., J. Phys. Chem. Solids 57, 373 (1996).Google Scholar
[11] Bol, A. A. and Meijerink, A., submitted to Phys. Chem. Chem. Phys. Google Scholar
[12] Cullity, B. D., Elements of X-ray Diffraction (Addison-Wesley, 1978) pp. 102.Google Scholar
[13] Suyver, J. F., Wuister, S. F., Kelly, J. J. and Meijerink, A., submitted to Nano Lett.Google Scholar
[14] Brand-Folkerts, H. F. van den, Luminescence of the Lead Ion in Solids, (Thesis Utrecht University, 1996) Ch. 8.Google Scholar
[15] Uehara, Y., J. Chem. Phys. 51, 4385 (1969).Google Scholar
[16] Scharmann, A., Schwabe, D. and Weyland, D., J. Lumin. 12/13, 479 (1976).Google Scholar