Universal emission intermittency in quantum dots, nanorods and nanowires

By P. Frantsuzov, M. Kuno, B. Jankó, R. Marcus. 2008

486 citations recorded by the source corpus.

Virtually all known fluorophores exhibit mysterious episodes of emission intermittency. A remarkable feature of the phenomenon is a power-law distribution of on- and off-times observed in colloidal semiconductor quantum dots, nanorods, nanowires and some organic dyes. For nanoparticles, the resulting power law extends over an extraordinarily wide dynamic range: nine orders of magnitude in probability density and five to six orders of magnitude in time. Exponents hover about the ubiquitous value of -3/2. Dark states routinely last for tens of seconds—practically forever on quantum mechanical timescales. Despite such infinite states of darkness, the dots miraculously recover and start emitting again. Although the underlying mechanism responsible for this phenomenon remains a mystery and many questions persist, we argue that substantial theoretical progress has been made.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/3c1511928e7403e1d161e0f751689f7fc2f1eb5f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. V. Klimov
2. Andras Kis

In Electrical and Electronic Engineering

1. V. Klimov
2. A. Imamoğlu
3. Andras Kis
4. R. Schaller
5. P. Kambhampati
6. Katsuaki Tanabe
7. Edward H. Sargent
8. Prashant Kamat

In Materials Chemistry

1. V. Klimov
2. A. Allain
3. D. Lembke
4. Andras Kis
5. R. Schaller
6. P. Kambhampati
7. Katsuaki Tanabe
8. Thomas Mueller

Citations in the corpus

• Optically active quantum dots in monolayer WSe2. (2014, background): “Finally, we emphasize that blinking statistics in most QDs is known from prior studies to be nonPoissonian, exhibiting power-law tails in waiting time distribution [20].”
• Two types of photoluminescence blinking revealed by single quantum dot spectroelectrochemistry (2011, background): “and artificial nanostructures such as nanocrystal quantum dots, carbon nanotubes and nanowire”