2005
DOI: 10.1021/jp051738b
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: In an effort to elucidate the spin (rather than charge) degrees of freedom in colloidal semiconductor nanocrystal quantum dots, we report on a series of static and time-resolved photoluminescence measurements of colloidal CdSe quantum dots in ultrahigh magnetic fields up to 45 T. At low temperatures (1.5-40 K), the steady-state photoluminescence (PL) develops a high degree of circular polarization with applied magnetic field, indicating the presence of spin-polarized excitons. Time-resolved PL studies reveal a… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

15
108
1
2

Year Published

2009
2009
2023
2023

Publication Types

Select...
6
1

Relationship

1
6

Authors

Journals

citations
Cited by 65 publications
(126 citation statements)
references
References 30 publications
15
108
1
2
Order By: Relevance
“…The slow decay time reflects the lifetime for the lowest energy exciton state (the dark state). 11,18,21,23 Figure 2 demonstrates that this slow decay time decreases significantly by an increasing temperature, an increment of the size and the application of a strong magnetic field.…”
Section: Methodsmentioning
confidence: 95%
See 3 more Smart Citations
“…The slow decay time reflects the lifetime for the lowest energy exciton state (the dark state). 11,18,21,23 Figure 2 demonstrates that this slow decay time decreases significantly by an increasing temperature, an increment of the size and the application of a strong magnetic field.…”
Section: Methodsmentioning
confidence: 95%
“…1,2 Furthermore, the high photoluminescence (PL) quantum efficiency of high-quality NQDs at room temperature 3,4 is important for applications. [5][6][7][8][9] To date, wurtzite NQDs have been mostly investigated, with CdSe as the prototypical example, [10][11][12] since the PL wavelength of CdSe NQDs can be tuned across the visible wavelength region. Alternatively, zinc-blende (e.g., CdTe, CdS, ZnSe, and ZnS) and rock-salt (e.g., PbS and PbSe) NQDs have been fabricated, which have considerably enlarged the wavelength emission range.…”
Section: Introductionmentioning
confidence: 99%
See 2 more Smart Citations
“…In this case, a fiber-coupled probe of the type described above typically suffices to obtain high quality spectra that are largely free from mechanical vibrations and subsequent misalignment during the magnet pulse. Similar fiber-coupled probe designs have been successfully used in conjunction with pulsed magnets to study mm-squared samples of magnetic semiconductors [32,33], quantum wells [34,35], colloidal quantum dots [36,37], carbon nanotubes [38,39], and polymers [40].…”
Section: Methodsmentioning
confidence: 99%