Direct Measurement of g-Factors in II-VI and III-V Core-Shell Nanocrystals

L. Fradkin, L. Langof, E. Lifshitz, N. Gaponik, A. Rogach, A. Eychmüller, H. Weller, O. I. Micic, A. J. Nozik

Research output: Contribution to journalArticlepeer-review

5 Scopus Citations


This study describes a direct measurement of spectroscopic g-factors of photo-generated carriers in InP/ZnS and HgTe/HgxCd1- xTe(S) core-shell nanocrystals. The g-factor of trapped electrons and their spin-lattice versus radiative relaxation ratio (T1/τ) were measured by the use of continuous-wave and time-resolved optically detected magnetic resonance (ODMR) spectroscopy. The g-factors of excitons and donor-hole pairs were derived by the use of field-induced circular-polarized photoluminescence (CP-PL) spectroscopy. The combined information enabled to determine the g-factors of the individual band-edge electrons and holes. The results suggested an increase of the g-factor of the exciton and conduction electron with a decrease of the nanocrystal size.

Original languageAmerican English
Pages (from-to)9-13
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1-4
StatePublished - Feb 2005
EventInternational Conference on Quantum Dots - Banff, Alberta, Canada
Duration: 10 May 200413 May 2004

NREL Publication Number

  • NREL/JA-590-38381


  • Colloidal quantum dots
  • Core-shell nanocrystals
  • g-factors
  • ODMR


Dive into the research topics of 'Direct Measurement of g-Factors in II-VI and III-V Core-Shell Nanocrystals'. Together they form a unique fingerprint.

Cite this