Photoluminescence of overgrown GaAs-GaAlAs quantum dots

Arnot, H. E. G.; Watt, M.; Torres, C. M. Sotomayor; Glew, R.W.; Cuscó, R.; Bates, J.B.; Beaumont, S.P.

doi:10.1016/0749-6036(89)90333-9

Cited by 54 publications

(10 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is an increasing tendency to apply QDs as markers in medicine and biology that because of their small size, brightness, independence of emission on the excitation wavelength and stability under relatively harsh environments [45]. They also have excellent photostability [18] and overcome the limitations associated with photobleaching and because of the small structures of QDs, some physical properties such as optical and electron transport characteristics are quite different from those of the bulk materials [46]. Some of the application summarised in Fig.…”

Section: Qd Applicationsmentioning

confidence: 99%

Review: three synthesis methods of CdX (X = Se, S or Te) quantum dots

Farkhani

Valizadeh²

2014

IET nanobiotechnol.

View full text Add to dashboard Cite

Quantum dots (QDs) are one of the first nanotechnologies to be integrated with the biological sciences that used for imaging or tracking macromolecules/cells in cell/tissue. Because of QDs are important in biomedical and biological applications, identify a variety of synthesis methods to produce QDs with different characteristics also is particularly important. Hence, in this review the authors discussed three methods for synthesis of heavy metal chalcogenide-based QDs for use in biomedical field: (i) Organometallic method for synthesis of QDs consists of three components: precursors, organic surfactants and solvents. The authors also discussed water-solubilisation strategies of synthesised QDs including encapsulation and ligand exchange. (ii) Aqueous synthesis technique using short-chain thiols as stabilising agents is a useful alternative to organometallic synthesis of CdSe, CdS and CdTe QDs. (iii) The third method discussed in this article for QDs synthesis involves the utilise of microorganisms to prepare QDs with controlled size, shape, chemical composition and functionality. The authors also discussed recently new methods for the synthesis of the appropriate QDs for use in biology. In addition, attachment of biomolecules such as antibodies, oligonucleotides on the surface of QDs for specific targeting and different opinions about toxicity of QD have been studied.

show abstract

Section: Qd Applicationsmentioning

confidence: 99%

Review: three synthesis methods of CdX (X = Se, S or Te) quantum dots

Farkhani

Valizadeh²

2014

IET nanobiotechnol.

View full text Add to dashboard Cite

show abstract

“…They also have excellent photostability [ 17 ] and overcome the limitations associated with photobleaching. Due to the small structures of QDs, some physical properties such as optical and electron transport characteristics are quite different from those of the bulk materials [ 18 ]. The study of the impurity states in these low dimensional structures is an important aspect to which many theoretical and experimental works based [ 16 , 19 - 21 ].…”

Section: Reviewmentioning

confidence: 99%

Quantum dots: synthesis, bioapplications, and toxicity

et al. 2012

View full text Add to dashboard Cite

This review introduces quantum dots (QDs) and explores their properties, synthesis, applications, delivery systems in biology, and their toxicity. QDs are one of the first nanotechnologies to be integrated with the biological sciences and are widely anticipated to eventually find application in a number of commercial consumer and clinical products. They exhibit unique luminescence characteristics and electronic properties such as wide and continuous absorption spectra, narrow emission spectra, and high light stability. The application of QDs, as a new technology for biosystems, has been typically studied on mammalian cells. Due to the small structures of QDs, some physical properties such as optical and electron transport characteristics are quite different from those of the bulk materials.

show abstract

“…For instance, quantum dot-based laser devices are expected to have superior performance [23]. Most of the studies on QDs are focused on spherical QDs, but QDs are better described by thin disks [24] or cylinders [25,26]. However, to our knowledge, there are only few studies on polaron effects on the THG in cylindrical QDs with a parabolic confinement potential.…”

Section: Introductionmentioning

confidence: 97%