Results 101 to 110 of about 15,302 (285)

GaIn As Quantum Dots (QD) grown by Liquid Phase Epitaxy (LPE)

Journal of Physics: Conference Series, 2009
The majority of the semiconductor structures with QD today are grown by MBE and MOCVD. It is known that the best material quality can be achieved by LPE because, in contrast to MBE and MOCVD, this method is realized at near-equilibrium conditions. To develop QD LPE technology first of all it is necessary to find out a growth technique allowing the ...
Ortiz Vázquez F E, Mishurnyi V A, Gorbatchev A Yu, De Anda F, Elyukhin V A   +4 more
openaire   +1 more source

Quantum Dots for Biomedical Biosensing, NIR‐II Bioimaging, and Phototherapy: Materials Design, Signal Transduction, and Translational Barriers

Advanced Science, EarlyView.
This review outlines bottom‐up and biomimetic fabrication strategies of quantum dots, and highlights their emerging applications in biosensing, multimodal bioimaging, and intelligent cancer theranostics. It further discusses key translational barriers and future perspectives for advancing QD‐based nanomedicine toward clinical implementation.
Jie Ju, Zhifang Liu, Xinran Gao, Wen Sun, Wei Fu, Yanfei Wang   +5 more
wiley   +1 more source

Development of Immunochromatographic Test Strip based on Quantum Dot Nanoparticles (QDs)

IOP Conference Series: Materials Science and Engineering, 2019
Water-soluble fluorescent CdSe/CdZnS quantum dots (QDs) (λem=637nm) were used as a labelling reporter for strip detection. The CdSe/CdZnS QDs was prepared by using core shell technique where CdSe QDs (λem=590nm) core was capped with CdZnS shell. CdZnS-QDs were conjugated with amine-modified DNA probe, that can bio-recognize with DNA product for use in ...
T Sioloetwong, A Kopwitthaya, N Sathirapongsasuti, K Nawattanapaiboon, C Kitiyakara, T Srikhirin   +5 more
openaire   +1 more source

Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors

Advanced Science, EarlyView.
 . ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton, Tuan Sang Tran, Duc Khanh Tran, Van Thanh Dau, Dzung Viet Dao   +4 more
wiley   +1 more source

Quantum dot sensitized solar cell design with surface passivized CdSeTe QDs

Solar Energy, 2020
Abstract One of the main factors affecting the performance of quantum dot sensitized solar cells (QDSSCs) is charge recombination caused by surface traps. It is important to passivize the surface traps of the synthesized QDs as much as possible in order to raise the power conversation efficiency (PCE).
openaire   +2 more sources

Unity Quantum Yield of High‐Entropy Quantum Dots Composited With Photonic Crystals for Information Encryption

Advanced Science, EarlyView.
This study first extends the high‐entropy concept to I‐III‐VI quantum dots (QDs) and synthesizes CZCrGSe/ZnSe/ZnS core/shell/shell QDs with a record photoluminescence quantum yield (PLQY) of 100%. Their ZnSe/ZnS double shell efficiently passivates defects and boosts structural stability.
Maoyuan Huang, Ziqiang Tian, Binkun Xie, Haiyang Li, Bo Tan, Chang He, Shiliang Mei, Wanlu Zhang, Changchun Wang, Ruiqian Guo   +9 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

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

Bandgap‐Engineered PtxTey:Ag2Te Composite Quantum Dots Enable Programmable NIR‐II Imaging and Photothermal‐Immune Synergistic Therapy

Advanced Science, EarlyView.
A bandgap‐engineered PtxTey:Ag2Te quantum dot platform enables tunable NIR‐IIb emission for deep‐tissue imaging and mild photothermal therapy. Conjugation with αPD‐L1 confers dual tumor targeting and real‐time monitoring of PD‐L1 dynamics. Mild photothermal modulation induces immune reprogramming, enhancing checkpoint blockade efficacy and achieving ...
Jing Liu, Rui Xu, Quan Wu, Tian‐Xin Xiao, Lai‐Xi Zhao, Lei Sun, Ya‐Wen Zheng, Liang Dong, Zhi‐Quan Tian, Haibo Wang   +9 more
wiley   +1 more source

Interlevel absorption of electromagnetic waves by nanocrystal with divalent impurity

Condensed Matter Physics, 2014
The energy spectrum of central divalent impurity is calculated using the effective mass approximation in a spherical quantum dot (QD). The dipole moment and oscillator strength of interlevel transition is defined.
V. I Boichuk, R.Ya. Leshko
doaj   +1 more source