Journal ArticleDOI
Recent developments on recycling end-of-life flat panel displays: A comprehensive review focused on indium
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In this paper, a review of the most recent technologies for indium recovery from waste flat panel displays is provided, which is different from the other fractions obtained after primary dismantling (such as indium fractionation).Abstract:
In this paper, a review of the most recent technologies for indium recovery from waste flat panel displays is provided. Differently from the other fractions obtained after primary dismantling (such...read more
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Potential substitutes for critical materials in white LEDs: Technological challenges and market opportunities
Pierre Gaffuri,Elena Stolyarova,Daniel Llerena,Estelle Appert,Marianne Consonni,Stéphane Robin,Vincent Consonni +6 more
TL;DR: The present approach addresses the transdisciplinary problem of the reduction and substitution of critical materials in functional devices intended for consumers, and can be generalized to other energy-related materials and devices.
Journal ArticleDOI
VUV and UV photoluminescence of green emitting Sr2P2O7:Tb3+ phosphors for PDP applications
TL;DR: Tb3+-activated Sr2P2O7 phosphor samples were prepared via the co-precipitation route as discussed by the authors, and the phase structure and vibrational characteristics of the synthesized phosphors were confirmed by X-ray diffraction and Fourier transform-infrared spectroscopy, respectively.
Journal ArticleDOI
Thermotropic liquid crystals with low-dimensional carbon allotropes
Adam P. Draude,Ingo Dierking +1 more
Abstract: As display devices based on liquid crystals have matured over the last decades, liquid crystal research has shifted its priorities in slightly different directions, such as sensors, photonics, nanotechnology and even more biologically related fields like drug delivery. This implied a change of emphasis in the development of novel materials, of which a completely new class of liquid crystal based composites emerged, that of nanoparticle-dispersed liquid crystals. The underlying ideas were to add functionality, while maintaining switchability, and the exploitation of liquid crystal self-organisation to build hierarchical nanostructures. Of particular interest for applications are dispersions of carbon nanomaterials, such as fullerenes, nanotubes and the graphene variants, due to their interactions with conventional liquid crystals. While such systems have been investigated for the past two decades, we concentrate in this review on the effects of dimensionality of the dispersed carbon nanoparticles, which goes hand in hand with the more recent developments in this field. Examples are the doping of 0D fullerenes in liquid crystals and implications for Blue Phase stability, or 1D nanotubes in nematic and ferroelectric liquid crystals, questions of dispersibility and applications as alignment media in ITO-free devices. Graphene (2D) and especially graphene oxide are mainly investigated for their formation of lyotropic liquid crystals. We here discuss the more recent aspects of dispersion in thermotropics.
Journal ArticleDOI
Carbon Allotropes as ITO Electrode Replacement Materials in Liquid Crystal Devices
TL;DR: In this article, the main contenders for new electrode technologies are discussed with an emphasis placed on carbon-based materials for liquid crystal displays, including composite approaches, and the advantages and disadvantages of ITO-free technologies with application examples given.
Journal ArticleDOI
Recycling of liquid crystals from e-waste
Ana Blanco Barrera,Corinne Binet,F. Dubois,Pierre-Alexandre Hébert,Philippe Supiot,C Foissac,Ulrich Maschke +6 more
TL;DR: In this paper , an orderly, manual LCD dismantling line is put into operation for differentiated recycling of electronic boards, cold cathode lamps that may contain mercury, polymers, metals, and other valuable materials.
References
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Journal ArticleDOI
Hydrometallurgical methods of indium recovery from obsolete LCD and LED panels
TL;DR: A review of the literature data on the possibilities of indium recovery from ITO layers of waste LCD and LED displays is presented in this article, where a short characterization of the indium, its compounds, resources, production and applications are presented.
Journal ArticleDOI
Europium, Yttrium, and Indium Recovery from Electronic Wastes
TL;DR: In this paper, a group of rare earths such as europium and yttrium, as well as semiconductors such as indium were recovered from cathode ray tubes that were manually dismantled.
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Recovery of Indium from Mobile Phone Touch Screen Using Adapted Acidithiobacillus ferrooxidans
TL;DR: In this paper, a serial subculturing approach was used for bacterial adaptation with heavy metals in mobile phone touch screen and the results confirmed as well as each other, the results showed that the adapted cell, non-adapted cell and control were 100% (adapted), 10% (non-adapting), 1% (control), respectively.