Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-19T04:11:17.831Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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