One- and two-photon luminescence in graphene oxide quantum dots

2015 ◽  
Vol 39 (1) ◽  
pp. 98-101 ◽  
Author(s):  
Hai-Xing Zhao ◽  
Yu-Chen Wang ◽  
Lian-Ying Zhang ◽  
Min Wang
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Excitation Wavelength ◽  
Two Photon ◽  
Graphene Oxide Quantum Dots

Graphene oxide quantum dots display good one- and two-photon luminescence which can be affected by acid/alkali, solvent and excitation wavelength.

Preparation of graphene oxide and polymer-like quantum dots and their one- and two-photon induced fluorescence properties

2016 ◽  
Vol 18 (6) ◽  
pp. 4800-4806 ◽  
Author(s):  
Jia Jia Huang ◽  
Min Zhi Rong ◽  
Ming Qiu Zhang
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Fluorescence Properties ◽  
Two Photon ◽  
Microwave Assisted ◽  
Doped Graphene ◽  
One Step ◽  
Graphene Oxide Quantum Dots

Highly fluorescent N-doped graphene oxide quantum dots (GOQDs) and polymer-like quantum dots (PQDs) were developed by one-step microwave assisted pyrolysis.

scholarly journals Multifunctional Biocompatible Graphene Oxide Quantum Dots Decorated Magnetic Nanoplatform for Efficient Capture and Two-Photon Imaging of Rare Tumor Cells

2015 ◽  
Vol 7 (20) ◽  
pp. 10935-10943 ◽  
Author(s):  
Yongliang Shi ◽  
Avijit Pramanik ◽  
Christine Tchounwou ◽  
Francisco Pedraza ◽  
Rebecca A. Crouch ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Tumor Cells ◽  
Rare Tumor ◽  
Two Photon ◽  
Photon Imaging ◽  
Two Photon Imaging ◽  
Graphene Oxide Quantum Dots

Upconversion photoluminescent metal ion sensors via two photon absorption in graphene oxide quantum dots

Carbon ◽  
2015 ◽  
Vol 81 ◽  
pp. 367-375 ◽  
Author(s):  
Hyun Dong Ha ◽  
Min-Ho Jang ◽  
Fei Liu ◽  
Yong-Hoon Cho ◽  
Tae Seok Seo
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Metal Ion ◽  
Photon Absorption ◽  
Ion Sensors ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Graphene Oxide Quantum Dots ◽  
Metal Ion Sensors

scholarly journals Enhanced two-photon photoluminescence assisted by multi-resonant characteristics of a gold nanocylinder

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 4009-4019
Author(s):  
Artur Movsesyan ◽  
Gwénaëlle Lamri ◽  
Sergei Kostcheev ◽  
Anke Horneber ◽  
Annika Bräuer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Enhancement Factor ◽  
Second Harmonic ◽  
Plasmon Mode ◽  
Excitation Wavelength ◽  
Resonant System ◽  
Two Photon ◽  
Plasmon Resonances ◽  
Resonant Systems ◽  
Photoluminescence Enhancement

AbstractMulti-resonant plasmonic simple geometries like nanocylinders and nanorods are highly interesting for two-photon photoluminescence and second harmonic generation applications, due to their easy fabrication and reproducibility in comparison with complex multi-resonant systems like dimers or nanoclusters. We demonstrate experimentally that by using a simple gold nanocylinder we can achieve a double resonantly enhanced two-photon photoluminescence of quantum dots, by matching the excitation wavelength of the quantum dots with a dipolar plasmon mode, while the emission is coupled with a radiative quadrupolar mode. We establish a method to separate experimentally the enhancement factor at the excitation and at the emission wavelengths for this double resonant system. The sensitivity of the spectral positions of the dipolar and quadrupolar plasmon resonances to the ellipticity of the nanocylinders and its impact on the two-photon photoluminescence enhancement are discussed.

Heterogeneity in the fluorescence of graphene and graphene oxide quantum dots

2017 ◽  
Vol 184 (3) ◽  
pp. 871-878 ◽  
Author(s):  
Siobhan J. Bradley ◽  
Renee Kroon ◽  
Geoffry Laufersky ◽  
Magnus Röding ◽  
Renee V. Goreham ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Graphene Oxide Quantum Dots
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