2006
DOI: 10.1039/b607661k
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Abstract: We present an overview of the current progress in the understanding of the (steady state) optical properties of individual II-VI semiconductor nanocrystals. We begin with a presentation of the conceptual development of the theory required to model the electronic structure of these systems. This is followed by an overview of the current experimental results obtained from the spectroscopy of individual semiconductor nanocrystals, and in particular, we focus on the study of photoluminescence intermittency (blinki… Show more

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Cited by 130 publications
(109 citation statements)
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“…Although similar effects can be observed in atoms when they enter into metastable states [2], the statistics of ''on'' and ''off'' periods in the case of QDs are profoundly different from those of real atoms. The probability of observing an off or on period is proportional to its duration raised to a power between À1:2 and À2 (see reviews [3][4][5][6]). Such a power law, called the À1:5 law, covers a huge time scale from tens of nanoseconds to tens of seconds [7] and is quite unusual.…”
mentioning
confidence: 99%
“…Although similar effects can be observed in atoms when they enter into metastable states [2], the statistics of ''on'' and ''off'' periods in the case of QDs are profoundly different from those of real atoms. The probability of observing an off or on period is proportional to its duration raised to a power between À1:2 and À2 (see reviews [3][4][5][6]). Such a power law, called the À1:5 law, covers a huge time scale from tens of nanoseconds to tens of seconds [7] and is quite unusual.…”
mentioning
confidence: 99%
“…The light emissions from such NCs vary from UV to visible, to near-infrared, and mid-infrared spectral ranges. These NCs demonstrate additional properties like carrier multiplication, single-particle blinking, and spectral diffusion and hence used in developing complex superlattices and multimodal agents for molecular imaging and targeted therapy [8]. Volume 1 Issue 2 -2017 The syntheses of these NCs offer numerous types of doped and strain-tuned QDs.…”
Section: Bge Of Nanoparticulate Materialsmentioning
confidence: 99%
“…6 This model is based on the effective mass approximation (EMA) and widely used to calculate the energy spectra of semiconductor nanocrystals. 23 Experiments showed that EMA is well justified for nanocrystals as small as 5 nm in diameter. 24 By analytically calculating the inter-level matrix elements of singlephoton optical transitions between the impurity states, we derive a general expression for the radiative decay rate of an excited impurity state.…”
Section: Introductionmentioning
confidence: 98%