[PDF] Top 20 Exciton Dynamics in InSb Colloidal Quantum Dots

... of InSb dots, as it has been shown to be the case for PbS nanos- tructures 15 Incidentally, we note that the level of accuracy required to simulate the ... See full document

... the exciton energies resulting from an uncertainty of 1 monolayer (ML) in the displayed core radii ( ∼ ± ...show exciton energies taken from the first and second absorption peak positions in absorp- tion ... See full document

... the mono-exponential decay of which had a characteristic lifetime of 91 ± 1 ps and was attributed to biexciton recombination; no evidence of surface-related trapping was observed. The rise time of the bleach, which is ... See full document

... film. We estimate an uncertainty in absolute temperature of a sample which does not exceed ±1°C. PL decay mea- surements were performed on epifluorescence micro- scope. The excitation source was a pulsed laser diode ... See full document

... charge dynamics in CdTe colloidal quantum ...these dots and the same dots before treatment enables new insights into the effect of surface trapping on ultrafast charge ...multiple ... See full document

... edge dynamics of the HgTe CQDs were also investigated by reversible electrochemistry and a high bandwidth optical setup to gain a more complete insight on the electronic structure [37, ... See full document

... The remainder of this paper is structured as follows. In Sec. II we outline our model for the dynamics of a micro- cavity containing quantum dots and explain how to identify a condensate in the ... See full document

... in quantum dots or ...non-metallic dots of this size. Dynamic dilation occurs for dots at constant pressure, rather than constant ...of dots in ultrafast optical ...the dots, or ... See full document

... carriers were involved in the different trapping processes. Considering that the use of these nanomaterials in biology, optoelectronics, photonics and photovoltaics is be- coming widespread, such a gap in our ... See full document

... CdTe colloidal quantum ...the quantum dots, and does not affect ...the quantum dots results in non-radiative decay pathways being almost entirely supressed, producing ... See full document

... The above QDs were synthesized by controlling their excited-state properties [18]. Fundamental studies on relationship between surface structure of semiconductor nanocrystals and their excited-state properties had been ... See full document

... To conclude this section we estimate the QD capture volume for excitons[64]. This can be deduced from the saturation power of the X level: at that power (of about 1500 nW distributed over a diameter of 1 µm) the number ... See full document

... charge dynamics to be studied free of the sample-specific influence of trapping, which hitherto has complicated ...the dynamics of unpassivated CQDs and with those exposed to air, enabling the study of the ... See full document

... calculate exciton and bi-exciton energies for the same CdSe/CdTe core/shell QD for ten different values of environmental dielectric ...both exciton and bi-exciton energies with increasing ... See full document

... charge dynamics of CQDs made of different materials in differ- ent ...PL dynamics in CdTe ...edge Exciton, j e CBM ,h VBM > , to a surface-trapped Exciton, j e n ,h trap > (in which e n ... See full document

... self-assembled quantum dots always has a range of ...(smaller) dots to lower-energy (bigger) dots via the wetting ...for dots where such a redistribution of carriers occurs, in the ... See full document

... Except for x = 0.35 [red data points in FIG. 2 (b)], which will be discussed in detail in section III-C, the exciton Bohr radius decreases with increasing mismatch up to 6.1 %, then saturates [ FIG. 2 (b)]. The ... See full document

... in quantum dot (QD) systems are relevant to the understanding of a number of their optical and elec- tronic ...tial quantum well (QW) configuration can lead to the enhancement of the interband oscillator ... See full document

... The PL quantum yield (QY) was evaluated relative to ICG (13 % in DMSO) [8]. A maximum PL QY of 0.06 % was measured for AIT NCs synthesized at 170 °C after 120 min reaction. The PL, however, was completely quenched ... See full document

... double quantum dots (DQDs) can be fabricated ...inter dots can be con- trolled not only by the composition but also by the exter- nally applied voltages; thus, DQDs are an ideal system for ... See full document