Intensity-and size-dependent relaxation in PbS quantum dots in glass

A. M. Malyarevich, V. G. Savitski, K. V. Yumashev, H. Raaben, A. A. Zhilin

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

Bleaching relaxation in PbS quantum dots of various sizes under different pump intensities has been studied. The observed bleaching relaxation features are explained in the context of the proposed spectroscopic model. The model takes into account transitions of excited charge carriers both in the system of quantum-confined energy levels and defect trap states of the dots. Characteristic times of direct electron-hole recombination, carriers trapping to defect states as well as cross-sections of "ground-state" and "excited-state" absorption of carriers can be evaluated from the experimental data using this model.

Original languageEnglish
Title of host publicationPhysics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages104-107
Number of pages4
ISBN (Print)9812562885, 9789812562883
DOIs
Publication statusPublished - 1 Dec 2005
EventInternational Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005 - Minsk, Belarus
Duration: 24 May 200527 May 2005

Conference

ConferenceInternational Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005
CountryBelarus
CityMinsk
Period24/05/0527/05/05

Keywords

  • bleaching relaxation
  • defect states
  • nanostructures
  • quantum theory
  • semiconducting lead compounds
  • semiconductor quantum dots

Cite this

Malyarevich, A. M., Savitski, V. G., Yumashev, K. V., Raaben, H., & Zhilin, A. A. (2005). Intensity-and size-dependent relaxation in PbS quantum dots in glass. In Physics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005 (pp. 104-107). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789812701947_0019