Results 101 to 110 of about 35,825 (292)

Tunneling transfer protocol in a quantum dot chain immune to inhomogeneity

, 2011
We propose a quantum dot (QD) implementation of a quantum state transfer channel. The proposed channel consists of N vertically stacked QDs with the nearest neighbor tunnel coupling, placed in an axial electric field.
Korzekwa, Kamil, Machnikowski, Paweł
core   +1 more source

Fabrication of inverted inorganic–organic quantum-dot light-emitting diodes with solution-processed n-type oxide electron injection layers and QD-polymer blend light-emitting layers [PDF]

, 2022
Eiji Itoh, Sosei Yamane, Katsutoshi Fukuda   +2 more
openalex   +1 more source

Initial Distance‐Dependent Mean Force Drives Synaptic Vesicle Motion Toward Fusion Sites in Stimulated Hippocampal Neurons

Advanced Science, EarlyView.
Synaptic vesicle (SV) motion and exocytosis dynamics in the presynaptic terminals of live neurons are intimately linked to synaptic transmission during neuronal activity. In this work, it is revealed that, during electrical stimulation, SVs located farther from their fusion sites exhibit greater straightness and experience larger mean forces directed ...
Gyunam Park, Ji‐Hyun Kim, Hunki Lee, Chungwon Park, Sidong Chen, Luke Bates, Jaeyoung Sung, Hyokeun Park   +7 more
wiley   +1 more source

Using a quantum dot as a high-frequency shot noise detector

, 2006
We present the experimental realization of a Quantum Dot (QD) operating as a high-frequency noise detector. Current fluctuations produced in a nearby Quantum Point Contact (QPC) ionize the QD and induce transport through excited states.
E. Onac, F. Balestro, G. L. Ingold, L. H. Willems van Beveren, L. P. Kouwenhoven, U. Hartmann, W. Schottky, Y. V. Nazarov   +7 more
core   +2 more sources

Visualizing Strain‐Coupled Cryogenic Phase Transitions and Defect Dynamics in Perovskite Quantum Dots Using In Situ STEM

Advanced Science, EarlyView.
Cryogenic cooling induces an orthorhombic‐to‐monoclinic phase transition in CsPbBr3 quantum dots, accompanied by pronounced strain localization at surfaces and interfaces. Multimodal in situ STEM directly visualize reversible defect healing during moderate cryogenic treatment and irreversible degradation upon prolonged exposure, revealing the intrinsic
Xinjuan Li, Zhao Jiang, Si Chen, Yi Tang, Bofeng Xue, Tianhao Wu, Yang Lu, Xavier Moya, Akshay Rao, Zhongzheng Yu, Caterina Ducati   +10 more
wiley   +1 more source

Dephasing due to Which Path Detector

, 1997
We study dephasing of electrons induced by a which path detector and thus verify Bohr's complementarity principle for fermions. We utilize a double path interferometer with two slits, with one slit being replaced by a coherent quantum dot (QD).
Aleiner, Buttiker, D Mahalu, E Buks, Eglert, Field, Gefen, Gurvitz, Imry, Imry, Khlus, Lesovik, Levinson, M Heiblum, R Schuster, Schuster, Stern, V Umansky, Yacoby, Zou   +19 more
core   +2 more sources

Wafer‐Scale Bandgap‐Tunable MoS2/PbS Phototransistors Enabled by Solution Processing

Advanced Science, EarlyView.
This work advances bandgap‐tunable MoS2/PbS phototransistors by introducing lateral heterojunctions, which enable superior tunable bandgap (1.24–0.61 eV) via Type‐II alignment. Plasma‐enhanced solution processing ensures uniform 4‐inch wafer‐scale fabrication with 97% yield.
Ziheng Tang, Chengqian Cui, Xiaoli Jing, Rui You, Mingjun Zhang, Jing Xu   +5 more
wiley   +1 more source

Green Synthesis of InP/ZnS Core/Shell Quantum Dots for Application in Heavy-Metal-Free Light-Emitting Diodes

Nanoscale Research Letters, 2017
Quantum dot light-emitting diodes (QD-LEDs) have been considered as potential display technologies with the characterizations of high color purity, flexibility, transparency, and cost efficiency.
Tsung-Rong Kuo, Shih-Ting Hung, Yen-Ting Lin, Tzu-Lin Chou, Ming-Cheng Kuo, Ya-Pei Kuo, Chia-Chun Chen   +6 more
doaj   +1 more source

Ultrafast Dense Immobilization of Noble Metal Nanoparticles on Customizable Multifunctional Polymer Microspheres for Heterogeneous Catalysis and Multiplexed Biodetection

Advanced Science, EarlyView.
This work proposes a facile co‐assembly strategy to achieve highly uniform and dense immobilization of diverse noble metal nanoparticles onto metastable multifunctional (e.g., magnetic or fluorescent) polymer microspheres, enabling fabrication of complex hierarchical superstructures.
Jie Zhao, Xinyi Liu, Dan Li, Xuefei Jing, Weijie Wu, Liangrui He, Yizhang Tang, Zhen Liu, Yulin Zeng, Haitian Sha, Huibin Qiu, Xujiang Yu, Wanwan Li   +12 more
wiley   +1 more source

Carrier Excitation Energies from a QD to OCL, RMS of Relative QD-Size Fluctuations and Temperature Dependence of QDL

مجلة علوم ذي قار, 2019
In this work, we study the characteristic temperature of a quantum dot laser (QDL) in presence of internal optical loss and quantum efficiency. The control parameters (the constant component of internal loss coefficient, effective cross section, carrier
R. M. Hassan
doaj   +4 more sources