نتایج جستجو برای: colloidal quantum dot

تعداد نتایج: 325560  

Journal: :IEICE Transactions on Electronics 2022

In this paper, we introduce our latest progress in the colloidal quantum dot enhanced color conversion layer for micro LEDs. Different methods of how to deploy dots can be discussed and reviewed. The necessity using seen efficiency such calculated from measured spectrum. A sub-pixel size 5 micron pattern demonstrated array format.

2011
Rumiana Bakalova Zhivko Zhelev Daisuke Kokuryo Lubomir Spasov Ichio Aoki Tsuneo Saga

BACKGROUND One of the most attractive properties of quantum dots is their potential to extend the opportunities for fluorescent and multimodal imaging in vivo. The aim of the present study was to clarify whether the composition and structure of organic coating of nanoparticles are crucial for their application in vivo. METHODS We compared quantum dots coated with non-crosslinked amino-functio...

2018
Boris le Feber Ferry Prins Eva De Leo Freddy T Rabouw David J Norris

To improve the photophysical performance of colloidal quantum dots for laser applications, sophisticated core/shell geometries have been developed. Typically, a wider bandgap semiconductor is added as a shell to enhance the gain from the quantum-dot core. This shell is designed to electronically isolate the core, funnel excitons to it, and reduce nonradiative Auger recombination. However, the s...

Journal: :Nature nanotechnology 2009
Jason P Clifford Gerasimos Konstantatos Keith W Johnston Sjoerd Hoogland Larissa Levina Edward H Sargent

Solution-processed semiconductors are compatible with a range of substrates, which enables their direct integration with organic circuits, microfluidics, optical circuitry and commercial microelectronics. Ultrasensitive photodetectors based on solution-process colloidal quantum dots operating in both the visible and infrared have been demonstrated, but these devices have poor response times (on...

2005
Lin Pang Kevin Tetz Yaoming Shen Chyong-Hua Chen Yeshaiahu Fainman

Commercially available CdSe/ZnS and PbSe colloidal semiconductor quantum dots were employed to produce both an electron beam sensitive poly methyl methacrylate PMMA -quantum-dot QD positive composite via a prepolymerization processing and an electron beam and ultraviolet UV light sensitive SU-8-QD negative composite via a direct dispersion procedure. Compared to the QDs in the original colloida...

Journal: :Angewandte Chemie 2010
Peter M Allen Brian J Walker Moungi G Bawendi

This paper examines the molecular mechanism of InP colloidal quantum dot (QD) syntheses. Unlike methods for monodisperse PbSe and CdSe we found that existing InP syntheses result in total depletion of molecular phosphorous species following nucleation, so QD growth is due exclusively to non-molecular ripening. We find that amines inhibit precursor depletion via solvation, and these findings may...

2009
Tim P. Osedach Scott M. Geyer John C. Ho Alexi C. Arango Moungi G. Bawendi Vladimir Bulović

Citation Osedach, Tim P. et al. " Lateral heterojunction photodetector consisting of molecular organic and colloidal quantum dot thin films. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits...

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