Growth kinetics of CdTe colloidal nanocrystals
Abstract
The growth kinetics of CdTe colloidal nanocrystals has been analyzed quantitatively by means of dynamic light scattering and photoluminescence measurements. The growth rates, size distributions, critical radii, and diffusion constants have been calculated in the framework of the Sugimoto theoretical model. A two-step diffusion-controlled growth regime has been proposed for the reported synthesis and a set of relations for the time evolution of the size distribution has been derived and discussed in the sense of the size distribution focusing concept.
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The effective bandgap of QDs and hence their photoluminescence can be tuned by either modifying their radius or their composition.
“As a result, the effective bandgap of QDs and hence their photoluminescence (PL) can be tuned by either modifying their radius [14] or the composition: CdS [15], CdSe [16], and CdTe [17] in the visible spectra and PbS [18], PbSe [19], and InAs [20] in the near infrared.”
From Polymer/QDs Nanocomposites for Waveguiding Applications (2012) · cites this paper as [16]
The emission wavelength can be tuned by changing the material forming the QDs and their size.
“In addition taking in account that the emission wavelength can be tuned by changing the material forming the QDs and their size [14][15][16][17][18][19][20], it has demonstrated the applications of colloidal QDs in LEDs technology [35].”
From Polymer/QDs Nanocomposites for Waveguiding Applications (2012) · cites this paper as [16]
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Polymer/QDs Nanocomposites for Waveguiding Applications
Gordillo, H., Suárez, I., Abargues, R., Rodríguez-Cantó, P., Albert, S., & Martínez-Pastor, J. P. (2012) · Journal of Nanomaterials · doi:10.1155/2012/960201 · Cited by 49 · see citing works
“As a result, the effective bandgap of QDs and hence their photoluminescence (PL) can be tuned by either modifying their radius [14] or the composition: CdS [15], CdSe [16], and CdTe [17] in the visible spectra and PbS [18], PbSe [19], and InAs [20] in the near infrared.”
Background
- Authors
- Ferreira, D. L., Silva, F. O., Viol, L. C. D. S., Licínio, P., Valadares, M., Cury, L. A., Schiavon, M. A., & Alves, J. L. A.
- Affiliations
- Universidade Federal de Minas Gerais (BR)
- Federal University of São João del-Rei (BR)
- ORCID
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 2009-08-27
- Volume
- 131
- Issue
- 8
- Pages
- 084712-084712
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2043334048
- Cited by
- 16
- References
- 0
- Citations by year
- 2022: 1 · 2019: 2 · 2018: 2 · 2017: 2 · 2013: 2 · 2012: 5
- FWCI
- 1.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Chemical Physics (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
- Physical Sciences › Materials Science › Materials Chemistry › Chemical and Physical Properties of Materials
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Semiconductor Detectors and Materials
- Keywords
- CdTe nanocrystals, colloidal nanocrystals, growth kinetics, diffusion-controlled growth, size distribution, critical radius, diffusion coefficient, dynamic light scattering, photoluminescence
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