Bright trions in direct-bandgap silicon nanocrystals revealed bylow-temperature single-nanocrystal spectroscopy

0456406 - FZÚ 2016 RIV GB eng J - Journal Article
Kůsová, Kateřina - Pelant, Ivan - Valenta, J.
Bright trions in direct-bandgap silicon nanocrystals revealed bylow-temperature single-nanocrystal spectroscopy.
Light-Science & Applications. Roč. 4, Oct (2015), e336. ISSN 2047-7538. E-ISSN 2047-7538
R&D Projects: GA ČR(CZ) GBP108/12/G108; GA ČR GPP204/12/P235
Institutional support: RVO:68378271
Keywords : silicon nanocrystals * single-nanocrystal spectroscopy * luminescing trions
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 13.600, year: 2015

We present a complex study of single-nanocrystal spectroscopy of strain-engineered direct-bandgap silicon nanocrystals over a broad temperature range from 300 K down to 9 K. We show that seemingly different spectral types are connected by spectral diffusion and also provide evidence for the claim that one of the observed spectral structures comes from the radiative recombination of positively charged trions (a quasiparticle containing two holes and one electron).
Permanent Link: http://hdl.handle.net/11104/0256933