Subpicosecond Hot Hole Transfer in a Graphene Quantum Dot Composite with High Efficiency

2022 ◽  
pp. 606-613
Author(s):  
Krishna Mishra ◽  
Debopam Acharjee ◽  
Ayendrila Das ◽  
Subhadip Ghosh
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Hole Transfer ◽  
Graphene Quantum Dot

Graphene quantum dot with covalently linked Rhodamine dye: a high efficiency photocatalyst for hydrogen evolution

Carbon ◽  
2020 ◽  
Vol 167 ◽  
pp. 760-769 ◽  
Author(s):  
Diptiman Dinda ◽  
Hyunho Park ◽  
Hyun-Jun Lee ◽  
Sangyoon Oh ◽  
Soo Young Park
Keyword(s):  
Quantum Dot ◽  
Hydrogen Evolution ◽  
High Efficiency ◽  
Graphene Quantum Dot ◽  
Covalently Linked ◽  
Rhodamine Dye

Interfacial electronic structure and charge transfer of hybrid graphene quantum dot and graphitic carbon nitride nanocomposites: insights into high efficiency for photocatalytic solar water splitting

2016 ◽  
Vol 18 (2) ◽  
pp. 1050-1058 ◽  
Author(s):  
Zuju Ma ◽  
Rongjian Sa ◽  
Qiaohong Li ◽  
Kechen Wu
Keyword(s):  
Electronic Structure ◽  
Quantum Dot ◽  
Carbon Nitride ◽  
High Efficiency ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Hybrid Functional ◽  
Graphene Quantum Dot ◽  
Solar Water Splitting ◽  
Interfacial Electronic Structure

The interfacial electronic structure and electron transfer of graphene quantum dot–graphitic carbon nitride composites are characterized by using hybrid functional calculations and include long-range dispersion corrections.

Hole transport materials mediating hole transfer for high efficiency quantum dot sensitized solar cells

2021 ◽  
Author(s):  
Yu Lin ◽  
Han Song ◽  
Jianxin Zhang ◽  
Huashang Rao ◽  
Zhenxiao Pan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Hole Transport ◽  
Hole Transfer ◽  
Sensitized Solar Cells

GO modification on a QD-sensitized photoanode improved the power conversion efficiency (PCE) of ZCISe QDSCs from the original 12.50% to 13.84%.

scholarly journals High efficiency spin-valve and spin-filter in a doped rhombic graphene quantum dot device

2018 ◽  
Vol 451 ◽  
pp. 532-539 ◽  
Author(s):  
P.V. Silva ◽  
A. Saraiva-Souza ◽  
D.W. Maia ◽  
F.M. Souza ◽  
A.G. Souza Filho ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Spin Valve ◽  
Spin Filter ◽  
Graphene Quantum Dot

NiAg-graphene quantum dot-graphene hybrid with high oxidase-like catalytic activity for sensitive colorimetric detection of malathion

2021 ◽  
Author(s):  
Xu Dan ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Haiyan Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Quantum Dot ◽  
Colorimetric Detection ◽  
Graphene Quantum Dots ◽  
Functionalized Graphene ◽  
Graphene Quantum Dot ◽  
Nickel Silver

The paper reports the synthesis of nickel-silver-graphene quantum dot-graphene hybrid. Histidine-functionalized graphene quantum dots (His-GQDs) were bonded to graphene oxide (GO) and then combined with Ni2+ and Ag+ to form...

scholarly journals Tailoring the Geometry of Bottom-Up Nanowires: Application to High Efficiency Single Photon Sources

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1201
Author(s):  
Dan Dalacu ◽  
Philip J. Poole ◽  
Robin L. Williams
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Emission Rate ◽  
Single Photon ◽  
Collection Efficiency ◽  
Photon Emission ◽  
Device Performance ◽  
Bottom Up ◽  
Selective Area ◽  
Photon Generation

For nanowire-based sources of non-classical light, the rate at which photons are generated and the ability to efficiently collect them are determined by the nanowire geometry. Using selective-area vapour-liquid-solid epitaxy, we show how it is possible to control the nanowire geometry and tailor it to optimise device performance. High efficiency single photon generation with negligible multi-photon emission is demonstrated using a quantum dot embedded in a nanowire having a geometry tailored to optimise both collection efficiency and emission rate.

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