نتایج جستجو برای: zns quantum dots

تعداد نتایج: 305904  

Journal: :Nanoscale 2015
Aqiang Wang Huaibin Shen Shuaipu Zang Qingli Lin Hongzhe Wang Lei Qian Jinzhong Niu Lin Song Li

In this paper, highly stable violet-blue emitting ZnSe/ZnS core/shell QDs have been synthesized by a novel "low temperature injection and high temperature growth" method. The resulting nearly monodisperse ZnSe/ZnS core/shell QDs exhibit excellent characteristics such as a high color saturation (typical spectral full width at half-maximum between 12 and 20 nm), good emission tunability in the vi...

Journal: :Wissenschaftliche Beiträge / Technische Hochschule Wildau 2012

2010
Katrin Pechstedt Tracy Whittle Jeremy Baumberg Tracy Melvin

An investigation of the photoinduced fluorescence enhancement (PFE) behavior of CdSe/ZnS core/shell quantum dots deposited at low densities, under anhydrous and controlled water humidity, under oxygen or argon, is presented. The photoluminescence properties of CdSe/ZnS QDs are highly dependent upon the local gaseous environment. Under anhydrous conditions, under either oxygen or argon, there wa...

Journal: :Energies 2022

Light-emitting diodes based on quantum dots as an active emission can be considered a promising next generation for application in displays and lighting. We report theoretical investigation of green at 550 nm microcavity inorganic–organic light-emitting devices Zn (Te, Se) alloy layer. Distributed Bragg Reflector (DBR) has been applied bottom mirror. The realization high-quality DBR consisting ...

Journal: :Applied Science and Convergence Technology 2023

2017
Federico Montanarella Thomas Altantzis Daniele Zanaga Freddy T Rabouw Sara Bals Patrick Baesjou Daniel Vanmaekelbergh Alfons van Blaaderen

Robust luminophores emitting light with broadly tunable colors are desirable in many applications such as light-emitting diode (LED)-based lighting, displays, integrated optoelectronics and biology. Nanocrystalline quantum dots with multicolor emission, from core- and shell-localized excitons, as well as solid layers of mixed quantum dots that emit different colors have been proposed. Here, we ...

Journal: :Biomaterials science 2015
Dan Shao Jing Li Yue Pan Xin Zhang Xiao Zheng Zheng Wang Ming Zhang Hong Zhang Li Chen

Theranostics is emerging as a popular strategy for cancer therapy; thanks to the development of nanotechnology. In this work, we have combined an HSV-TK/GCV suicide gene system and near-infrared quantum dots, as the former is quite effective in liver cancer treatment and the latter facilitates tumor imaging. A folate-modified theranostic liposome (FL/QD-TK) was developed, which is composed of a...

Journal: :Nature nanotechnology 2012
Ling Ye Ken-Tye Yong Liwei Liu Indrajit Roy Rui Hu Jing Zhu Hongxing Cai Wing-Cheung Law Jianwei Liu Kai Wang Jing Liu Yaqian Liu Yazhuo Hu Xihe Zhang Mark T Swihart Paras N Prasad

Quantum dots have been used in biomedical research for imaging, diagnostics and sensing purposes. However, concerns over the cytotoxicity of their heavy metal constituents and conflicting results from in vitro and small animal toxicity studies have limited their translation towards clinical applications. Here, we show in a pilot study that rhesus macaques injected with phospholipid micelle-enca...

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