Results 31 to 40 of about 1,293,225 (284)
ACS Central Science, 2018 Understanding the surface of semiconductor nanocrystals (NCs) prepared using colloidal methods is a long-standing goal of paramount importance for all their potential optoelectronic applications, which remains unsolved largely because of the lack of site-
L. Piveteau +12 more
semanticscholar +1 more source
Photoassisted Synthesis of CdSe and Core−Shell CdSe/CdS Quantum Dots [PDF]
Langmuir, 2004 This paper describes the synthesis of core-shell CdSe/CdS quantum dots (QDs) in aqueous solution by a simple photoassisted method. CdSe was prepared from cadmium nitrate and 1,1-dimethylselenourea precursors under illumination for up to 3 h using a pulsed Nd:YAG laser at 532 nm. The effects that the temperature and the laser irradiation process have on
Lin, Yang-Wei +3 more
openaire +2 more sources
Ultrahigh–Q Microtoroid On-Chip Resonators for Low Threshold Microlasers [PDF]
, 2006 Recently demonstrated silica toroidal microcavities, as on-chip resonant cavities, become one of the most promising laser resonators due to their exceptional ability to confine optical energy temporarily and spatially (high Q-factor and small mode volume)
Min, Bumki
core +1 more source
Coherent phonons in CdSe quantum dots triggered by ultrafast electron transfer
EPJ Web of Conferences, 2013 The origin of coherent oscillations in CdSe quantum dots and in the CdSe/methylviologen electron transfer system is studied. In CdSe/methylviologen coherent phonons are triggered by the electron transfer from the quantum dot to methylviologen.
Wachtveitl J., Braun M., Dworak L.
doaj +1 more source
Characteristics of quantum dots phagocytosis by neutrophil granulocytes
Heliyon, 2019 This article describes the main morphological and biochemical features of neutrophil granulocytes in the process of phagocytosis of two types of quantum dots (CdSe/ZnS-MPA and CdSe/CdSeZnS/ZnS-PTVP).
S.N. Pleskova +3 more
doaj +1 more source
Multi-dimensional coherent spectroscopy of CdSe colloidal quantum dots at cryogenic temperatures [PDF]
EPJ Web of Conferences, 2019 One-quantum and zero-quantum multi-dimensional coherent spectroscopy are used to study CdSe colloidal quantum dots at cryogenic temperatures. Each technique reveals unique aspects of the electron-phonon coupling dynamics in the material.
Liu Albert +4 more
doaj +1 more source
Dynamic behavior of nematic liquid crystal mixtures with quantum dots in electric fields
Beilstein Journal of Nanotechnology, 2018 The dynamic behavior of a mixture consisting of liquid crystalline 4-cyano-4’-pentylbiphenyl (5CB) and CdSe/ZnS quantum dots in electric fields was theoretically studied.
Emil Petrescu +2 more
doaj +1 more source
Molecules, 2022 Constructing photocatalysts to promote hydrogen evolution and carbon dioxide photoreduction into solar fuels is of vital importance. The design and establishment of an S-scheme heterojunction system is one of the most feasible approaches to facilitate ...
Yayun Wang +4 more
doaj +1 more source
Supramolecular assemblies of semiconductor quantum dots and a bis(bipyridinium) derivative: luminescence quenching and aggregation phenomena† [PDF]
RSC Advances, 2014 We have synthesized CdSe and CdSe–ZnS core–shell luminescent nanocrystal quantum dots and studied their interaction with a ditopic bis(bipyridinium) compound in solution.
Marek Oszajca +6 more
doaj +1 more source
Nonlinear Optical Properties of CdSe and CdTe Core-Shell Quantum Dots and Their Applications
Frontiers in Physics, 2021 The strong nonlinear optical behavior of low-dimensional materials, such as quantum dots and core-shell quantum dots, has been a topic of intense research in recent years.
Um e Kalsoom +3 more
doaj +1 more source