Shell thickness effects on quantum dot brightness and energy transfer

Nanoscale ◽  
2017 ◽  
Vol 9 (42) ◽  
pp. 16446-16458 ◽  
Author(s):  
Margaret Chern ◽  
Thuy T. Nguyen ◽  
Andrew H. Mahler ◽  
Allison M. Dennis
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Quantum Dot ◽  
Shell Thickness ◽  
Sensing Applications

CdSe/xCdS/ZnS thick-shelled ‘giant’ quantum dots are exceptionally bright as well as effective as energy transfer donors for sensing applications.

Nanocrystalline Phosphors for Lighting and Detection Applications

2010 ◽  
Vol 654-656 ◽  
pp. 1130-1133 ◽  
Author(s):  
Christopher J. Summers ◽  
Hisham M. Menkara ◽  
Richard A. Gilstrap ◽  
Mazen Menkara ◽  
Thomas Morris
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Shell Growth ◽  
Stokes Shift ◽  
Thermal Quenching ◽  
High Sensitivity ◽  
In Situ Monitoring ◽  
White Leds ◽  
Sensing Applications ◽  
Improved Stability

We report the development of new nanoparticle phosphors and quantum dot structures designed for applications to enhance the color rendering and efficiency of high brightness white LEDs, as well as for bio-sensing applications. The intrinsic problem of self-absorption, high toxicity, and high sensitivity to thermal quenching of conventional quantum dot systems has prevented their adoption to LED devices. Doped Cd-free quantum dots may circumvent these issues due to their distinct Stokes shift and improved stability at high temperature. We report on the modification of Mn-doped ZnSe/ZnS core-shell quantum dots for application to the (blue diode + yellow emitter) white LED system. Band gap tuning for 460 nm excitation, inorganic shell growth and in-situ monitoring for enhanced efficiency, and analysis of thermal stability will are reported.

Efficient and Bright Colloidal Quantum Dot Light-Emitting Diodes via Controlling the Shell Thickness of Quantum Dots

2013 ◽  
Vol 5 (22) ◽  
pp. 12011-12016 ◽  
Author(s):  
Huaibin Shen ◽  
Qinli Lin ◽  
Hongzhe Wang ◽  
Lei Qian ◽  
Yixing Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Shell Thickness ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Colloidal Quantum Dot

Photoinduced energy transfer in dye encapsulated polymer nanoparticle–CdTe quantum dot light harvesting assemblies

2015 ◽  
Vol 2 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Simanta Kundu ◽  
Santanu Bhattacharyya ◽  
Amitava Patra
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Quantum Dot ◽  
Light Harvesting ◽  
Nile Red ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Cdte Quantum Dots ◽  
Cdte Quantum Dot ◽  
Red Dye

The efficient resonance energy transfer from CdTe quantum dots (donors) to Nile Red dye (acceptor) encapsulated PMMA nanoparticles for light harvesting is described.

scholarly journals Cucurbituril-mediated quantum dot aggregates formed by aqueous self-assembly for sensing applications

2019 ◽  
Vol 55 (38) ◽  
pp. 5495-5498 ◽  
Author(s):  
William J. Peveler ◽  
Hui Jia ◽  
Tiffany Jeen ◽  
Kelly Rees ◽  
Thomas J. Macdonald ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Self Assembly ◽  
Sensing Applications

Supramolecular ‘gluing’ of quantum dots is demonstrated with cucurbituril and we present the opportunity to create molecular host–guest sensing schemes.

Sensitive fluorescence assay of organophosphorus pesticides based on the fluorescence resonance energy transfer between CdTe quantum dots and porphyrin

The Analyst ◽  
2016 ◽  
Vol 141 (16) ◽  
pp. 4941-4946 ◽  
Author(s):  
Gao Xue ◽  
Zhao Yue ◽  
Zhang Bing ◽  
Tang Yiwei ◽  
Liu Xiuying ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Quantum Dot ◽  
Fluorescence Resonance Energy Transfer ◽  
Organophosphorus Pesticides ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Fluorescence Assay ◽  
Cdte Quantum Dots ◽  
Fluorescence Resonance

A sensitive and selective quantum dot (QD)-based fluorescence resonance energy transfer (FRET) biosensor was successfully fabricated for the detection of organophosphorus pesticides (OPs).

Energy Transfer in Aqueous Solutions of Oppositely Charged CdSe/ZnS Core/Shell Quantum Dots and in Quantum Dot−Nanogold Assemblies

Nano Letters ◽  
2004 ◽  
Vol 4 (3) ◽  
pp. 451-457 ◽  
Author(s):  
Richard Wargnier ◽  
Alexandre V. Baranov ◽  
Vladimir G. Maslov ◽  
Vitali Stsiapura ◽  
Mikhail Artemyev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Quantum Dot ◽  
Aqueous Solutions ◽  
Core Shell ◽  
Oppositely Charged
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