Results 71 to 80 of about 41,364 (301)

Improvement of the Stability and Optical Properties of CsPbBr3 QDs

, 2023
All-inorganic perovskite quantum dots (CsPbX3 QDs) (X = Cl, Br, I) have the advantages of adjustable emission position, narrow emission spectrum, high fluorescence quantum efficiency (PLQY), easy preparation, and elevated defect tolerance; therefore ...
Jiajie Cheng, Guangdong Huang, Yufan Jiang, Jingjing Dong, Jiaming Wang, Li Zou, Meili Yang   +6 more
core   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

Advanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen, Wei Zeng, Zherui Zhao, JiYu Zhao, Ziyan Huang, Zhuo Chen, Kui Zhou, Guanglong Ding, Su‐Ting Han, Ye Zhou   +9 more
wiley   +1 more source

Quantum Dots as a Potential Multifunctional Material for the Enhancement of Clinical Diagnosis Strategies and Cancer Treatments

Nanomaterials
Quantum dots (QDs) represent a class of nanoscale wide bandgap semiconductors, and are primarily composed of metals, lipids, or polymers. Their unique electronic and optical properties, which stem from their wide bandgap characteristics, offer ...
Wenqi Guo, Xueru Song, Jiaqi Liu, Wanyi Liu, Xiaoyuan Chu, Zengjie Lei   +5 more
doaj   +1 more source

CMOS‐Integrated Synaptic Photoreceptor Chip Inspired by Insect Visual Processing

Advanced Science, EarlyView.
CMOS‐integrated Si QDs/ReS2 synaptic photoreceptor array mimics the parallel processing and wavelength‐selective strategy of insect vision. By combining intrinsic ultraviolet‐violet sensitivity with synaptic plasticity, the chip enables frontend sensory redundancy reduction without external filters, offering a scalable pathway toward lowpower ...
Jian Chai, Xinyi Xu, Yue Wang, Xiaochen Wang, Hailiang Wang, Yunfei Xie, Xinwei Zhang, Haoyu Wang, Hao Ning, Jiangming Lin, Yongliang Xie, Qihai Jiang, Baoshi Qiao, Xiaolei Ding, Luyao Ma, Shukai Duan, Zhenyi Ni, Huan Hu, Xin He, Fei Xue, Feichi Zhou, Lingfei Li, Srikrishna Chanakya Bodepudi, Rui Yuan, Bin Yu, Yang Xu   +25 more
wiley   +1 more source

Synthesis of Novel Stable ZnSe Magic‐Sized Clusters and Their Direct Transformation to Quantum Dots

Advanced Science, EarlyView.
We have developed a low‐temperature synthetic approach that enables the fabrication of novel ZnSe MSCs with remarkable thermal stability. These stabilized MSCs serve as efficient precursors that can be readily converted to ZnSe QDs under mild conditions through simple introduction of a selenium source.
Bin Song, Zihui Jin, Xuanyu Zhang, Rong‐Jun Xie   +3 more
wiley   +1 more source

Graphene quantum dots in alveolar macrophage: uptake-exocytosis, accumulation in nuclei, nuclear responses and DNA cleavage

Particle and Fibre Toxicology, 2018
Background Given the tremendous potential for graphene quantum dots (QDs) in biomedical applications, a thorough understanding of the interaction of these materials with macrophages is essential because macrophages are one of the most important barriers ...
Lina Xu, Yanhui Dai, Zhenyu Wang, Jian Zhao, Fei Li, Jason C. White, Baoshan Xing   +6 more
doaj   +1 more source

Submicron QDs-containing Particles as Nano-thermosensors

, 2016
International audienceWe have developed a facile approach to engineering ratiometric sensors nano-thermosensors (NTSs) with a core/shell structure.
Sizova, Svetlana, Mochalov, Konstantin, Nabiev, Igor, Oleinikov, Vladimir, Samokhvalov, Pavel, Generalova, Alla, Tretyak, Marina   +6 more
core   +1 more source

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

Effect of Nucleic Acid and Albumin on Luminescence Properties of Deposited TiO2 Quantum Dots

International Journal of Electrochemical Science, 2012
Luminescent quantum dots (QDs) have gained a great attention as promising candidates in optical detection of various biomolecules such as DNA, proteins, etc.
Jana Drbohlavova, Jana Chomoucka, Radim Hrdy, Jan Prasek, Libor Janu, Marketa Ryvolova, Vojtech Adam, Rene Kizek, Tereza Halasova, Jaromir Hubalek   +9 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