2018
DOI: 10.1021/acs.chemmater.7b04478
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Excitation Energy Dependence of the Photoluminescence Quantum Yield of Core/Shell CdSe/CdS Quantum Dots and Correlation with Circular Dichroism

Abstract: Quantum dot (QD) based nanomaterials are very promising materials for the fabrication of optoelectronic devices like solar cells, light emitting diodes (LEDs), and photodetectors as well as as reporters for chemo-and biosensing and bioimaging. Many of these applications involve the monitoring of changes in photoluminescence intensity and energy transfer processes which can strongly depend on excitation wavelength or energy. In this work, we analyzed the excitation energy dependence (EED) of the photoluminescen… Show more

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Cited by 34 publications
(48 citation statements)
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“…This was supported by an excellent match of experimentally obtained and reconstructed CD spectra of QDs. Similar results were also obtained by Martynenko et al [68]. This model is often used to explain a wide range of observed phenomena including influence of QD size [62], shell thickness [62,69], nature and binding mode of ligands [70][71][72][73][74] on the position, shape and intensity of CD peaks, as well as the influence of QDs on the properties of chiral molecules [75], which will be discussed in the present review.…”
Section: The Mechanisms Of Ligand-induced Chirality In Qdssupporting
confidence: 86%
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“…This was supported by an excellent match of experimentally obtained and reconstructed CD spectra of QDs. Similar results were also obtained by Martynenko et al [68]. This model is often used to explain a wide range of observed phenomena including influence of QD size [62], shell thickness [62,69], nature and binding mode of ligands [70][71][72][73][74] on the position, shape and intensity of CD peaks, as well as the influence of QDs on the properties of chiral molecules [75], which will be discussed in the present review.…”
Section: The Mechanisms Of Ligand-induced Chirality In Qdssupporting
confidence: 86%
“…This model is often used to explain a wide range of observed phenomena including influence of QD size [62], shell thickness [62,69], nature and binding mode of ligands [70][71][72][73][74] on the position, shape and intensity of CD peaks, as well as the influence of QDs on the properties of chiral molecules [75], which will be discussed in the present review. In addition, this method allows the investigation of the QD energy structure using CD spectra [68].…”
Section: The Mechanisms Of Ligand-induced Chirality In Qdsmentioning
confidence: 99%
See 1 more Smart Citation
“…Next, the absorption spectra were approximated by the sum of Gaussians, with fixed FWHM and positions of the transitions determined during fitting of the MCD spectra. An extra Gaussian function with a maximum in the UV spectral region was added to simulate an underlying continuum of unresolved transitions, increasing towards short wavelengths [21,22].…”
Section: Description Of the Fitting Proceduresmentioning
confidence: 99%
“…Intrinsic chirality of nanoparticles(NPs) and the relationship between the chirality of nanoparticles and chirality of molecules on their surface are interesting topics that have been extensively studied in the past years 45 48 . Chemical sensing based on nanoparticles has attracted research interests due to their unique size-dependent properties.…”
Section: Introductionmentioning
confidence: 99%