Skip to main content
×
Home

Lead Sulfide Quantum Dot Synthesis, Deposition, and Temperature Dependence Studies of the Stokes Shift

  • Joanna S. Wang (a1), Bruno Ullrich (a1) and Gail J. Brown (a1)
Abstract
ABSTRACT

We investigated the temperature dependence of the Stokes shift of PbS quantum dots (diameter 4.7 nm) deposited from solution on glass using a specially designed apparatus. By measuring the thermal alteration of the optical absorbance and photoluminescence in the range of 5 K – 300 K, we demonstrate that the Stokes shift shrinks from 135 meV at 5 K to 62 meV at 300 K. Extrapolation of the data presented predict an elimination temperature of the Stokes shift of about 460 K, corresponding to the thermal energy of the sum of prominent PbS phonon energies.

Copyright
References
Hide All
1.Peterson J. J. and Krauss T. D., Nano Lett. 6, 510 (2006).
2.Turyanska L., Patanè A., Henini M., Hennequin B. and Thomas N. R., Appl. Phys. Lett. 90, 101913 (2007).
3.Gaponenko M. S., Lutich A. A., Tolstik N. A., Onushchenko A. A., Malyarevich A. M., Petrov E. P. and Yumashev K. V., Phys. Rev. B 82, 125320 (2010).
4.Ullrich B., Xiao X. Y., and Brown G. J., J. Appl. Phys. 108, 013525 (2010).
5.Ullrich B., Wang J. S., and Brown G. J., Appl. Phys. Lett. 99, 081901 (2011).
6.Liu C., Kwon K., and Heo J., J. Non-Cryst. Solids 355, 1880 (2009).
7.Zhang J., Jiang X., J. Phys. Chem. B 112, 9557 (2008).
8.Zhang J. and Jiang X., Appl. Phys. Lett. 92, 141108 (2008).
9.Dantas N. O., de Paula P. M. N., Silva R. S., López-Richard V., and Marques G. E., J. Appl. Phys. 109, 024308 (2011).
10.Rakovich Y. P., Donegan J. F., Vasilevskiy M. I., and Rogach A. L., Phys. Stat. Sol. A 206, 2497 (2009).
11.Hines M. A. and Scholes G. D., Adv. Mater. 15(21), 1844, (2003).
12.Vainshtein I. A., Zatsepin A. F., and Kortov V. S., Phys. Solid State 41, 907 (1999).
13.Madelung O., Semiconductors: Data Handbook, 3rd ed. (Springer, Berlin, 2004).
14.Fernée M. J., Thomsen E., Jensen P., and Rubinsztein-Dunlop H., Nanotech 17, 956 (2008).
15.Lobo A., Muller T., Nagel M., Borchert H., Hickey S.G., and Weller H., J. Phys. Chem. C 109, 17422 (2005).
16.Abel K. A., Shan J., Boyer J.-C., Harris F., and van Veggel F. C. J. M., Chem. Mater. 20, 3794 (2008).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 2 *
Loading metrics...

Abstract views

Total abstract views: 117 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 25th November 2017. This data will be updated every 24 hours.