First-Principles Study of the Electron–Hole Recombination Rate at the Interface of the CdSe Quantum Dot and TiO2 Substrate

2021 ◽  
Author(s):  
Ning Du ◽  
Yingqi Cui ◽  
Li Zhang ◽  
Mingli Yang
Keyword(s):  
Quantum Dot ◽  
First Principles ◽  
Recombination Rate ◽  
Electron Hole ◽  
First Principles Study ◽  
Cdse Quantum Dot ◽  
Hole Recombination

Suppressing the electron–hole recombination rate in hematite photoanode with a rapid cooling treatment

2017 ◽  
Vol 350 ◽  
pp. 48-55 ◽  
Author(s):  
Jingran Xiao ◽  
Huali Huang ◽  
Qiuyang Huang ◽  
Le Zhao ◽  
Xiang Li ◽  
...  
Keyword(s):  
Recombination Rate ◽  
Electron Hole ◽  
Rapid Cooling ◽  
Hole Recombination

A first-principles study on DNA sequencing using graphene quantum dot

2018 ◽  
Vol 91 (6) ◽  
Author(s):  
Morteza Rastgoo ◽  
Seyed-Mohammad Tabatabaei ◽  
Morteza Fathipour
Keyword(s):  
Quantum Dot ◽  
Dna Sequencing ◽  
First Principles ◽  
Graphene Quantum Dot ◽  
First Principles Study

scholarly journals Synthesis, characterization and photocatalytic activity of mesoporous Na-doped TiO2 nano-powder prepared via a solvent-controlled non-aqueous sol–gel route

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54053-54062 ◽  
Author(s):  
Inderjeet Singh ◽  
Balaji Birajdar
Keyword(s):  
Photocatalytic Activity ◽  
Catalytic Activity ◽  
Surface Area ◽  
Recombination Rate ◽  
Sol Gel ◽  
Electron Hole ◽  
Photo Catalytic Activity ◽  
Nano Powder ◽  
Hole Recombination ◽  
Enhanced Crystallinity

The superior photo-catalytic activity of mesoporous Na doped TiO2 attributed to the combined effect of electron–hole recombination rate, increased surface area and enhanced crystallinity.

The Possible Mechanism of Excitation of the f - f Emission from Er-O Clusters in Silicon

1996 ◽  
Vol 422 ◽  
Author(s):  
V. F. Masterov ◽  
L. G. Gerchikov
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Forward Bias ◽  
Electron Trap ◽  
Electron Hole ◽  
Electron Level ◽  
Light Emitting ◽  
Trapped Electron ◽  
Hole Recombination

AbstractThe Er2O3 quantum dot (cluster) with dimensions about 1.2nm in silicon is discussed as the possible source of the Er related emission in Si:Er,O, excited by photogenerated carriers or in a light-emitting diodes (LED) at forward bias. This quantum dot is represented as a spherical quantum well 0.9eV in depth. The electron level with energy about 0.15eV below the bottom of the silicon conduction band plays role of an electron trap. The trapped electron interacts with a hole in valence band of silicon forming “indirect” exciton bonded to quantum well. The energy is transferred to f - shell of erbium by the Auger electron - hole recombination.

Quantum Dot Array LED Research with ZnO as an Electron Transport Layer

2013 ◽  
Vol 333-335 ◽  
pp. 1895-1898
Author(s):  
Jia Zhao ◽  
Xiao Yu Zhang ◽  
Yu Zhang ◽  
Yi Feng ◽  
Tie Qiang Zhang ◽  
...  
Keyword(s):  
Electron Transport ◽  
Quantum Dot ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Core Shell ◽  
Cdse Core ◽  
Electron Hole ◽  
Light Emitting ◽  
Light Stability ◽  
Hole Recombination

As a new light-emitting material, quantum dot having the advantages of other materials that can not be replaced. It is not only the fluorescence quantum yield, and light stability. Therefore, we use CdSe core-shell structure of the quantum dot LED devices as the electron-hole recombination layer. In this paper, we synthesized emission peak is located at 588nm CdSe core-shell quantum dots, and made array display LED devices with ZnO as the electron transport layer.

Synergic effects of upconversion nanoparticles NaYbF4:Ho3+ and ZrO2 enhanced the efficiency in hole-conductor-free perovskite solar cells

Nanoscale ◽  
2018 ◽  
Vol 10 (46) ◽  
pp. 22003-22011 ◽  
Author(s):  
Yanyan Li ◽  
Li Zhao ◽  
Meng Xiao ◽  
Yimin Huang ◽  
Binghai Dong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Recombination Rate ◽  
Perovskite Solar Cells ◽  
Upconversion Nanoparticles ◽  
Electron Hole ◽  
Dual Functional ◽  
Nir Light ◽  
Hole Recombination

This design enabled the dual-functional effects, that is, the harvesting of NIR light and its conversion to visible light and the reduction of the electron–hole recombination rate.

Quantum Dot Based on Z-shaped Graphene Nanoribbon: First-principles Study

2007 ◽  
Vol 20 (4) ◽  
pp. 489-494 ◽  
Author(s):  
Hao Ren ◽  
Qun-xiang Li ◽  
Qin-wei Shi ◽  
Jin-long Yang
Keyword(s):  
Quantum Dot ◽  
First Principles ◽  
Graphene Nanoribbon ◽  
First Principles Study
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