Results 81 to 90 of about 1,114,424 (221)

Energy transfer in colloidal CdTe quantum dot nanoclusters

Optics Express, 2010
Quantum dot (QD) nanoclusters were formed using oppositely charged colloidal CdTe QDs, of two different sizes, mixed in aqueous solutions. The photoluminescence (PL) spectra and time-resolved PL decays show signatures of Förster resonant energy transfer (FRET) from the donor QDs to the acceptor QD in the nanoclusters.
Clare, Higgins, Manuela, Lunz, A Louise, Bradley, Valerie A, Gerard, Stephen, Byrne, Yurii K, Gun'ko, Vladimir, Lesnyak, Nikolai, Gaponik   +7 more
openaire   +4 more sources

Engineered magnetoconductance in InAs nanowire quantum dots [PDF]

, 2015
Magnetoconductance is the change in the electrical transport properties of a solid state system in response to an applied magnetic field, determined by both its magnitude and orientation.
Fábián, Gábor
core   +1 more source

Self‐Powered Broadband High‐Responsivity Photodetectors: p‐(CuS)x(ZnSe)1−x/p‐Si Isotype Heterojunction

Small, EarlyView.
This study reports a self‐powered broadband photodetector based on compositionally tuned p‐(CuS)x(ZnSe)1−x/p‐Si isotype heterojunctions. Increasing the CuS ratio improved the film crystallinity and produced a denser, more homogeneous nanopillar morphology, enhancing light absorption.
Ali Olkun
wiley   +1 more source

Strong spin-orbit interaction, helical hole states, and spin qubits in nanowires and quantum dots [PDF]

, 2014
Semiconducting nanowires (NWs) and quantum dots (QDs) are promising platforms for spintronics and quantum computation. Great experimental and theoretical efforts have been made to continuously improve their performances, which is evident from the large ...
Klöffel, Christoph
core   +1 more source

Microwave-assisted synthesis of water-dispersed CdTe/CdSe core/shell type II quantum dots

Nanoscale Research Letters, 2011
A facile synthesis of mercaptanacid-capped CdTe/CdSe (core/shell) type II quantum dots in aqueous solution by means of a microwave-assisted approach is reported.
Sai Li-Man, Kong Xiang Yang
doaj  

Development of low cost ZnO based chemi resistive biosensor for the detection of vitamin B6 mediated by quantum dots

Scientific Reports
In this study, we developed a chemi-resistive sensor for vitamin B6 mediated by CdTe quantum dots (Cadmium Telluride QDs) utilizing ZnO-based thin films through the spin-coating sol–gel technique annealed at 500 °C.
Bhavana Anchan, Saritha Kamath U, Suresh D. Kulkarni, Kavita A. Pandey, Shounak De, Ajeetkumar Patil   +5 more
doaj   +1 more source

Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots

International Journal of Photoenergy, 2009
We present photoluminescence (PL) measurements of two different, 3 monolayers and 12 monolayers (ml), CdTe self-assembled quantum dot (SAQD) samples.
Nebojša Romčević, Maja Romčević, Radmila Kostić, Dušanka Stojanović, Aleksandra Milutinović, Jelena Trajić, Grzegorz Karczewski, Robert Galazka   +7 more
doaj   +1 more source

Cytotoxicity and cellular imaging of quantum dots protected by polyelectrolyte

Journal of Pharmaceutical Analysis, 2012
The nanocomposites of poly-diallyldimethylammonium chloride (PDADMAC) and CdTe quantum dots (QDs) (i.e. QDs-PDADMAC nanocomposites) have been prepared based on electrostatic interaction and their fluorescence stability in aqueous solution has been ...
Hai-Yan Hu, Xing-Ru Dou, Zong-Lin Jiang, Jian-Hua Tang, Lian Xie, Hong-Ping Xie   +5 more
doaj   +1 more source

Electrochemical aptasensors for ultrasensitive multiplexed detection: Towards a new era of precision diagnostics and environmental monitoring

VIEW, EarlyView.
Electrochemical aptasensors are emerging as powerful platforms for precision diagnostics and environmental monitoring, owing to their high selectivity, programmability and compatibility with miniaturised systems. However, their broader application is constrained by limited signal intensity and challenges in reliable multiplexed detection.
Azadeh Abdi, Ngoan Thi Thao Nguyen, Riccardo Zulli, Jacopo Giaretta, Fariba Dehghani, Syamak Farajikhah   +5 more
wiley   +1 more source

PbSe quantum dots grown in a high-index low-melting-temperature glass for infrared laser applications [PDF]

, 2013
PbSe quantum dots (QDs) were grown in high-refractive-index low-melting-temperature lead-phosphate glass. QDs with various sizes ranging from 2 nm to 5.3 nm were grown by controlling the growth parameters, heat-treatment temperature and time.
Leonard, V., Shepherd, D.P., P. Kannan, D. P. Shepherd, X. Feng, Choudhary, Amol, Pradeesh, Kannan, Mills, B., D. W. Hewak, V. M. Leonard, B. Mills, A. Choudhary, Hewak, D.W., Feng, X.   +13 more
core   +1 more source