Quantum confinement in silver selenide semiconductor nanocrystals

2012 ◽  
Vol 48 (44) ◽  
pp. 5458 ◽  
Author(s):  
Ayaskanta Sahu ◽  
Ankur Khare ◽  
Donna D. Deng ◽  
David J. Norris
Keyword(s):  
Quantum Confinement ◽  
Semiconductor Nanocrystals ◽  
Silver Selenide

Localization and Dynamics of Long-Lived Excitations in Colloidal Semiconductor Nanocrystals with Dual Quantum Confinement

ChemPhysChem ◽  
2015 ◽  
Vol 16 (8) ◽  
pp. 1663-1669 ◽  
Author(s):  
Su Liu ◽  
Nicholas J. Borys ◽  
Sameer Sapra ◽  
Alexander Eychmüller ◽  
John M. Lupton
Keyword(s):  
Quantum Confinement ◽  
Semiconductor Nanocrystals ◽  
Colloidal Semiconductor Nanocrystals ◽  
Colloidal Semiconductor ◽  
Dual Quantum

Impact of quantum confinement on the optical nonlinearities of semiconductor nanocrystals

1990 ◽  
Author(s):  
Christos Flytzanis ◽  
Francois Hache ◽  
Maurice C. Klein ◽  
Daniel Ricard
Keyword(s):  
Quantum Confinement ◽  
Semiconductor Nanocrystals ◽  
Optical Nonlinearities

Nanocrystals and nano-optics

1995 ◽  
Vol 353 (1703) ◽  
pp. 313-321 ◽  
Keyword(s):  
Optical Spectroscopy ◽  
Quantum Confinement ◽  
Near Field ◽  
Science And Technology ◽  
Semiconductor Nanocrystals ◽  
Single Molecules ◽  
Three Dimensional ◽  
Nanometer Scale ◽  
New Science

Three dimensional electronic quantum confinement in semiconductor nanocrystals, and near-field optical spectroscopy of single molecules, are briefly discussed as examples of new science and technology at the nanometer scale.

Loosening Quantum Confinement: Observation of Real Conductivity Caused by Hole Polarons in Semiconductor Nanocrystals Smaller than the Bohr Radius

Nano Letters ◽  
2012 ◽  
Vol 12 (9) ◽  
pp. 4937-4942 ◽  
Author(s):  
Ronald Ulbricht ◽  
Joep J. H. Pijpers ◽  
Esther Groeneveld ◽  
Rolf Koole ◽  
Celso de Mello Donega ◽  
...  
Keyword(s):  
Quantum Confinement ◽  
Semiconductor Nanocrystals ◽  
Bohr Radius

scholarly journals Sugar-Mediated Green Synthesis of Silver Selenide Semiconductor Nanocrystals under Ultrasound Irradiation

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 5193
Author(s):  
Daniela Armijo García ◽  
Lupe Mendoza ◽  
Karla Vizuete ◽  
Alexis Debut ◽  
Marbel Torres Arias ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Optical Properties ◽  
Colloidal Stability ◽  
Semiconductor Nanocrystals ◽  
Cost Effective ◽  
Ultrasound Irradiation ◽  
Silver Selenide ◽  
Easy Method ◽  
Stabilizing Agents ◽  
Vis Spectroscopy

Silver selenide (Ag2Se) is a promising nanomaterial due to its outstanding optoelectronic properties and countless bio-applications. To the best of our knowledge, we report, for the first time, a simple and easy method for the ultrasound-assisted synthesis of Ag2Se nanoparticles (NPs) by mixing aqueous solutions of silver nitrate (AgNO3) and selenous acid (H2SeO3) that act as Ag and Se sources, respectively, in the presence of dissolved fructose and starch that act as reducing and stabilizing agents, respectively. The concentrations of mono- and polysaccharides were screened to determine their effect on the size, shape and colloidal stability of the as-synthesized Ag2Se NPs which, in turn, impact the optical properties of these NPs. The morphology of the as-synthesized Ag2Se NPs was characterized by transmission electron microscopy (TEM) and both α- and β-phases of Ag2Se were determined by X-ray diffraction (XRD). The optical properties of Ag2Se were studied using UV–Vis spectroscopy and its elemental composition was determined non-destructively using scanning electron microscopy–energy-dispersive spectroscopy (SEM–EDS). The biological activity of the Ag2Se NPs was assessed using cytotoxic and bactericidal approaches. Our findings pave the way to the cost-effective, fast and scalable production of valuable Ag2Se NPs that may be utilized in numerous fields.

Assessing the Environmental Effects Related to Quantum Dot Structure, Function, Synthesis and Exposure

2021 ◽  
Author(s):  
Marissa Giroux ◽  
Zahra Zahra ◽  
Omobayo Adio Salawu ◽  
Robert M. Burgess ◽  
Kay T. Ho ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Quantum Dot ◽  
Structure Function ◽  
Environmental Effects ◽  
Quantum Confinement ◽  
Semiconductor Nanocrystals

Quantum dots (QDs) are engineered semiconductor nanocrystals with unique fluorescent, quantum confinement, and quantum yield properties, making them valuable in a range of commercial and consumer imaging, display, and lighting...

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