Photoinduced 2-way electron transfer in composites of metal nanoclusters and semiconductor quantum dots

Nanoscale ◽  
2016 ◽  
Vol 8 (29) ◽  
pp. 14250-14256 ◽  
Author(s):  
Navendu Mondal ◽  
Sneha Paul ◽  
Anunay Samanta
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Semiconductor Quantum Dots ◽  
Metal Nanoclusters

scholarly journals Models of semiconductor quantum dots blinking based on spectral diffusion -=SUP=-*-=/SUP=-

2019 ◽  
Vol 126 (1) ◽  
pp. 77
Author(s):  
V.K. Busov ◽  
P.A. Frantsuzov
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Quantum Dot ◽  
Semiconductor Quantum Dots ◽  
Spectral Diffusion ◽  
The Other ◽  
Diffusion Controlled ◽  
Colloidal Quantum Dot ◽  
Marcus Model ◽  
Observed Behavior

AbstractThree models of single colloidal quantum dot emission fluctuations (blinking) based on spectral diffusion were considered analytically and numerically. It was shown that the only one of them, namely the Frantsuzov and Marcus model reproduces the key properties of the phenomenon. The other two models, the Diffusion-Controlled Electron Transfer (DCET) model and the Extended DCET model predict that after an initial blinking period, most of the QDs should become permanently bright or permanently dark which is significantly different from the experimentally observed behavior.

scholarly journals Auger-Assisted Electron Transfer from Photoexcited Semiconductor Quantum Dots

Nano Letters ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. 1263-1269 ◽  
Author(s):  
Haiming Zhu ◽  
Ye Yang ◽  
Kim Hyeon-Deuk ◽  
Marco Califano ◽  
Nianhui Song ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Semiconductor Quantum Dots

scholarly journals Nanoscale chirality in metal and semiconductor nanoparticles

2016 ◽  
Vol 52 (85) ◽  
pp. 12555-12569 ◽  
Author(s):  
Jatish Kumar ◽  
K. George Thomas ◽  
Luis M. Liz-Marzán
Keyword(s):  
Quantum Dots ◽  
Optical Activity ◽  
Semiconductor Nanoparticles ◽  
Semiconductor Quantum Dots ◽  
Plasmonic Nanoparticles ◽  
Metal Nanoclusters ◽  
Recent Advances

We discuss optical activity in metal nanoclusters and semiconductor quantum dots, broadly focusing on recent advances in nanoscale chirality in plasmonic nanoparticles and their assemblies.

Semiconductor Quantum Dots for Multicolor Fluorescence Imaging and Spectroscopy of Single Cancer Cells

2003 ◽  
Vol 773 ◽  
Author(s):  
Xiaohu Gao ◽  
Shuming Nie ◽  
Wallace H. Coulter
Keyword(s):  
Quantum Dots ◽  
Cancer Cells ◽  
Fluorescence Imaging ◽  
Organic Dyes ◽  
Fluorescent Proteins ◽  
Single Cells ◽  
Quantitative Imaging ◽  
Semiconductor Quantum Dots ◽  
Single Cancer ◽  
Imaging And Spectroscopy

AbstractLuminescent quantum dots (QDs) are emerging as a new class of biological labels with unique properties and applications that are not available from traditional organic dyes and fluorescent proteins. Here we report new developments in using semiconductor quantum dots for quantitative imaging and spectroscopy of single cancer cells. We show that both live and fixed cells can be labeled with multicolor QDs, and that single cells can be analyzed by fluorescence imaging and wavelength-resolved spectroscopy. These results raise new possibilities in cancer imaging, molecular profiling, and disease staging.

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