Results 41 to 50 of about 29,770 (162)

Review on the ionizing irradiation preparation of semiconductor CdS fluorescent quantum dots

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2021
Semiconductor CdS fluorescent quantum dots (QDs) have been widely studied for their excellent optical and electrical properties. There are many mature preparation methods of CdS QDs have been developed.
ZHAO Yuan   +6 more
doaj   +1 more source

QD floating gate NVRAM using QD channel for faster erasing [PDF]

open access: yesElectronics Letters, 2018
A new pathway to design floating gate quantum dot (QD) non‐volatile RAM (QDNVRAM) cells that possess high‐speed low‐voltage Erase capabilities not possible with conventional floating gate NV memories is presented. This is achieved by directly accessing the QD floating gate layer with an additional drain (D2) during the Erase operation.
M. Lingalugari   +4 more
openaire   +1 more source

qd-Type Methods for Quasiseparable Matrices [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2011
In the last few years many numerical techniques for computing eigenvalues of structured rank matrices have been proposed. Most of them are based on QR iterations since, in the symmetric case, the rank structure is preserved and high accuracy is guaranteed.
Roberto Bevilacqua   +2 more
openaire   +4 more sources

Highly sensitive synchronous fluorescence determination of mercury (II) based on the denatured ovalbumin coated CdTe QDs

open access: yes, 2012
Chemically denatured ovalbumin (dOB) was used to modify the surface of 3-mercaptopropionic acid (MPA) stabilized CdTe quantum dots (QDs), which resulted in a great enhancement of the synchronous fluorescence intensity.
李文友   +5 more
core   +1 more source

One-pot synthesis optimization of thiol-capped SnS and SnS/ZnS QDs for photocatalytic degradation of Rhodamine 6G

open access: yesHeliyon
Interest in SnS-based quantum dots (QDs) has increased due to their low toxicity, widespread natural availability, and superior electro-optical characteristics suitable for photodegradation applications.
Madillo Mareka   +2 more
doaj   +1 more source

Study of quantum dots (CdS, ZnS) toxicity in Danio rerio: preliminary results

open access: yesAnnals of Medicine, 2021
Introduction Quantum Dots (QDs) are nanoparticles with potential applications in many industrial and biomedical areas (e.g. fluorescent dyes, LED). QDs have unique and remarkable properties, however, little is known about their toxicity [1].
Beatriz Matos   +2 more
doaj   +1 more source

Surface Chemistry Studies of Quantum Dots (QDs) Modified with Surfactants

open access: yes, 2003
Since luminescent CdSe quantum dots (QDs) have shown great potential in biological labeling, the surface chemistry behavior of QDs at interfaces is of great research interest.
Sui, Guodong   +5 more
core   +1 more source

CdTe-QDs Affect Reproductive Development of Plants through Oxidative Stress

open access: yes, 2023
With the continuous development of industry, an increasing number of nanomaterials are widely used. CdTe-QDs is a nanomaterial with good optical properties, but its release into the natural environment may pose a potential threat.
Jianhua Wang   +4 more
core   +1 more source

Viability and pluripotency studying of human embryo stem cells labeled with quantum dots

open access: yesNano Biomedicine and Engineering, 2010
Semiconductor quantum dots (QDs) hold increasing potential for cellular imaging both in vitro and in vivo. In this report, we aimed to study imaging of human embryonic stem (ES) cells labeled with quantum dots (QDs), and to evaluate the viability and ...
Jing Ruan   +6 more
doaj   +1 more source

Investigation of carrier dynamics of QDs using kinetic model and ultrafast spectroscopy

open access: yesOptical Materials: X, 2022
The study of carrier dynamics of QDs is extremely important for developing efficient light-harvesting systems. Here, we investigate size-dependent hole transfer from CdSe QDs to 4-aminothiophenol (4-ATPh) ligand using ultrafast spectroscopy.
Bikash Jana   +5 more
doaj   +1 more source

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