Quantum Yield Enhancement of Cd/Se Colloidal Quantum Dots by Variation of Surface Ligands

2013 ◽  
Author(s):  
David Gudeman ◽  
Witold Palosz
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Colloidal Quantum Dots ◽  
Yield Enhancement ◽  
Surface Ligands

An experimental and theoretical mechanistic study of biexciton quantum yield enhancement in single quantum dots near gold nanoparticles

Nanoscale ◽  
2015 ◽  
Vol 7 (15) ◽  
pp. 6851-6858 ◽  
Author(s):  
Swayandipta Dey ◽  
Yadong Zhou ◽  
Xiangdong Tian ◽  
Julie A. Jenkins ◽  
Ou Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Quantum Yield ◽  
Yield Enhancement ◽  
Mechanistic Study ◽  
Single Quantum ◽  
Single Quantum Dots

NIR-Emitting Colloidal Quantum Dots Having 26% Luminescence Quantum Yield in Buffer Solution

2007 ◽  
Vol 129 (23) ◽  
pp. 7218-7219 ◽  
Author(s):  
Sean Hinds ◽  
Stefan Myrskog ◽  
Larissa Levina ◽  
Ghada Koleilat ◽  
Jun Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Colloidal Quantum Dots ◽  
Luminescence Quantum Yield ◽  
Buffer Solution

High Quantum Yield Blue Emission from Lead-Free Inorganic Antimony Halide Perovskite Colloidal Quantum Dots

ACS Nano ◽  
2017 ◽  
Vol 11 (9) ◽  
pp. 9294-9302 ◽  
Author(s):  
Jian Zhang ◽  
Ying Yang ◽  
Hui Deng ◽  
Umar Farooq ◽  
Xiaokun Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Blue Emission ◽  
Lead Free ◽  
Colloidal Quantum Dots ◽  
High Quantum Yield ◽  
High Quantum ◽  
Halide Perovskite

Review of the synthesis and properties of colloidal quantum dots: the evolving role of coordinating surface ligands

2012 ◽  
Vol 65 (13) ◽  
pp. 2391-2414 ◽  
Author(s):  
Christopher M. Evans ◽  
Laura C. Cass ◽  
Kathryn E. Knowles ◽  
Daniel B. Tice ◽  
Robert P.H. Chang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Surface Ligands

scholarly journals Quantum Yield Enhancement in Graphene Quantum Dots via Esterification with Benzyl Alcohol

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Suzuka Tachi ◽  
Hiroki Morita ◽  
Misaki Takahashi ◽  
Yusuke Okabayashi ◽  
Takuya Hosokai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Benzyl Alcohol ◽  
Functional Groups ◽  
Photophysical Properties ◽  
Graphene Quantum Dots ◽  
Yield Enhancement ◽  
Light Illumination ◽  
Nonradiative Recombination ◽  
Widespread Application

Abstract The quantum yield of graphene quantum dots was enhanced by restriction of the rotation and vibration of surface functional groups on the edges of the graphene quantum dots via esterification with benzyl alcohol; this enhancement is crucial for the widespread application of graphene quantum dots in light-harvesting devices and optoelectronics. The obtained graphene quantum dots with highly graphene-stacked structures are understood to participate in π–π interactions with adjacent aromatic rings of the benzylic ester on the edges of the graphene quantum dots, thus impeding the nonradiative recombination process in graphene quantum dots. Furthermore, the crude graphene quantum dots were in a gel-like solid form and showed white luminescence under blue light illumination. Our results show the potential for improving the photophysical properties of nanomaterials, such as the quantum yield and band-gap energy for emission, by controlling the functional groups on the surface of graphene quantum dots through an organic modification approach.

Photoluminescence Quantum Yield and Matrix-Induced Luminescence Enhancement of Colloidal Quantum Dots Embedded in Ionic Crystals

2014 ◽  
Vol 26 (10) ◽  
pp. 3231-3237 ◽  
Author(s):  
Marcus Müller ◽  
Martin Kaiser ◽  
Gordon M. Stachowski ◽  
Ute Resch-Genger ◽  
Nikolai Gaponik ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Colloidal Quantum Dots ◽  
Ionic Crystals ◽  
Luminescence Enhancement ◽  
Photoluminescence Quantum Yield
Sign in / Sign up

Export Citation Format

Share Document