A dipole–dipole interaction tuning the photoluminescence of silicon quantum dots in a water vapor environment

Nanoscale ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 1790-1797 ◽  
Author(s):  
Jinrong Yang ◽  
Yi Gao
Keyword(s):  
Quantum Dots ◽  
Excited State ◽  
Water Vapor ◽  
Dipole Interaction ◽  
Dual Band ◽  
Silicon Quantum Dots ◽  
Band Emission ◽  
Water Trimer

The dual band emission origins from the single Si–Si stretched bond of silicon quantum dots (Si QDs) induced by the dipole–dipole interaction between cyclic water trimer and Si QDs in excited state.

Excited State Properties of Allylamine-Capped Silicon Quantum Dots

2007 ◽  
Vol 111 (6) ◽  
pp. 2394-2400 ◽  
Author(s):  
X. Wang ◽  
Zhang ◽  
Niehaus ◽  
Th. Frauenheim
Keyword(s):  
Quantum Dots ◽  
Excited State ◽  
Silicon Quantum Dots

Excited-State Relaxation Dynamics of 3-Vinylthiophene-Terminated Silicon Quantum Dots

2010 ◽  
Vol 114 (27) ◽  
pp. 11693-11698 ◽  
Author(s):  
Vincent Groenewegen ◽  
Volker Kuntermann ◽  
Dietrich Haarer ◽  
Michael Kunz ◽  
Carola Kryschi
Keyword(s):  
Quantum Dots ◽  
Excited State ◽  
Relaxation Dynamics ◽  
Silicon Quantum Dots

Detection of ethanol and water vapor with silicon quantum dots coupled to an optical fiber

2013 ◽  
Vol 181 ◽  
pp. 523-528 ◽  
Author(s):  
Z.H. Zhang ◽  
R. Lockwood ◽  
J.G.C. Veinot ◽  
A. Meldrum
Keyword(s):  
Quantum Dots ◽  
Water Vapor ◽  
Optical Fiber ◽  
Silicon Quantum Dots

Excited State Relaxation and Stabilization of Hydrogen Terminated Silicon Quantum Dots

2013 ◽  
Vol 24 (2) ◽  
pp. 381-397 ◽  
Author(s):  
Qi Wu ◽  
Xian Wang ◽  
Quan-Song Li ◽  
Rui-Qin Zhang
Keyword(s):  
Quantum Dots ◽  
Excited State ◽  
Silicon Quantum Dots

Communication: Photoinduced Carbon Dioxide Binding with Surface-Functionalized Silicon Quantum Dots

2018 ◽  
Author(s):  
Oscar A. Douglas-Gallardo ◽  
Cristián Gabriel Sánchez ◽  
Esteban Vöhringer-Martinez
Keyword(s):  
Carbon Dioxide ◽  
Quantum Dots ◽  
Atmospheric Carbon Dioxide ◽  
Density Functional ◽  
Tight Binding ◽  
Carbon Dioxide Concentration ◽  
Research Area ◽  
Silicon Quantum Dots ◽  
Dependent Model ◽  
Photoinduced Charge

<div> <div> <div> <p>Nowadays, the search of efficient methods able to reduce the high atmospheric carbon dioxide concentration has turned into a very dynamic research area. Several environmental problems have been closely associated with the high atmospheric level of this greenhouse gas. Here, a novel system based on the use of surface-functionalized silicon quantum dots (sf -SiQDs) is theoretically proposed as a versatile device to bind carbon dioxide. Within this approach, carbon dioxide trapping is modulated by a photoinduced charge redistribution between the capping molecule and the silicon quantum dots (SiQDs). Chemical and electronic properties of the proposed SiQDs have been studied with Density Functional Theory (DFT) and Density Functional Tight-Binding (DFTB) approach along with a Time-Dependent model based on the DFTB (TD-DFTB) framework. To the best of our knowledge, this is the first report that proposes and explores the potential application of a versatile and friendly device based on the use of sf -SiQDs for photochemically activated carbon dioxide fixation. </p> </div> </div> </div>

Size-Dependent Photothermal Performance of Silicon Quantum Dots

2021 ◽  
Vol 125 (6) ◽  
pp. 3421-3431
Author(s):  
İrem Nur Gamze Özbilgin ◽  
Batu Ghosh ◽  
Hiroyuki Yamada ◽  
Naoto Shirahata
Keyword(s):  
Quantum Dots ◽  
Silicon Quantum Dots ◽  
Size Dependent

scholarly journals Surface‐Anisotropic Janus Silicon Quantum Dots via Masking on 2D Silicon Nanosheets

2021 ◽  
pp. 2100288
Author(s):  
Marc Julian Kloberg ◽  
Haoyang Yu ◽  
Elisabeth Groß ◽  
Felix Eckmann ◽  
Tassilo M. F. Restle ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Silicon Quantum Dots
Sign in / Sign up

Export Citation Format

Share Document