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[ellissj] 16/4/2019 10:24

A korean researcher at kaist (sung hool choi) gave a presentation on flexible screens at graphene conference last year. Wonder if they might be interested in vrs 2D inks ? Best ellis

'Graphene and 2D Materials for Display Technology
.'

Sung-Yool Choi,
Ick-Joon Park, Youngjun Woo, Gi Woong Shim,
Woonggi Hong, Sang Yoon Yang
.

School of Electrical Engineering, Graphene/2D
Materials Research Center, KAIST, Daejeon,
34141, Korea
[e-mail]

Abstract

"Two-dimensional (2D) materials, graphene
and transition metal dichalcogenides
(TMDCs), have attracted tremendous
research activities worldwide as innovative
materials for application to next-generation
displays due to their unique properties such
as versatile electrical conductivity, optical
transparency, and mechanical flexibility and
stretchability.

During the last decade, we
have demonstrated that the integration of
graphene and TMDCs enables the
implementation of 2D materials-based front
panel and back-plane devices for flexible or
stretchable displays [1-3]. In this talk, I will
present recent advances in the synthesis of
2D materials [4] and applications to future
display technology [5-6] and will discuss the
technical issues to be addressed for the
applications to real display devices."

[ellissj] 16/4/2019 10:15

The original inks story here. Best ellis


SCALABLE 100% YIELD PRODUCTION OF CONDUCTIVE GRAPHENE INKS

A method for producing high quality, water-based conductive graphene inks with high concentrations has been developed by researchers from the Graphene Flagship working at the Cambridge Graphene Centre at the University of Cambridge, UK. The novel method uses ultrahigh shear forces in a microfluidization process to exfoliate graphene flakes from graphite. The process converts 100% of the starting graphite material into usable flakes for conductive inks, avoiding the need for centrifugation and reducing the time taken to produce a usable ink. The research is published in ACS Nano.

The inks produced by the microfluidization process have high concentrations of up to 100 g of graphene flakes per litre and can be optimised for screen printing. These inks can also be used to create novel composites, coatings and energy storage devices. This method can easily be applied to other layered materials, such as hexagonal boron nitride or transition metal dichalcogenides, to provide a family of printable circuit components — conductor, insulators and semiconductors — with which to build printed electronics with different functionalities. These inks are ideal for applications where low-cost is important.

With the 100% yield of the microfluidization method, it is now possible to produce high quality graphene inks in sufficient quantities for commercial products. Inks produced using this method have already been commercialised via a University of Cambridge spin out company, Cambridge Graphene, which was recently acquired by engineering solutions company Versarien. The inks are also supplied to Novalia, an innovative print company based in Cambridge, for use in their interactive touch-based printed electronic demos.

Dr. Panagiotis Karagiannidis, a researcher at the Cambridge Graphene Centre, is lead author of the work. “The motivation was the need for layers with low sheet resistance to be produced by screen printing using inks with high concentration. In the microfluidization process, all of the starting mixture experiences the same uniform intensive shear levels, converting it into a usable ink with high concentration. There is no wastage of material or time consuming post-processing.”


Prof. Andrea Ferrari is Director of the Cambridge Graphene Centre, Science and Technology Officer of the Graphene Flagship, and Chair of the Flagship Management Panel. He stated “This is an important conceptual advance, and will significantly help the innovation and industrialisation goals of the Graphene Flagship. The fact that the process is already licensed and commercialised indicates how it is feasible to cut the time from lab to market even during the lifetime of the Flagship.”

Chris Jones of Novalia said “For viable marketable applications, the materials need to be cost effective, easy to handle and show consistent performance. We ran these inks on ordinary industrial screen printing equipment without modification and achieved consistent results, printing hundreds of interactive demonstrators for Mobile World Congress. This is a very exciting point — a critical juncture between the laboratory and the public.”

Mar García-Hernandez of the Spanish National Research Council (CSIC) is the leader of the Graphene Flagship Work Package Enabling Materials, which is focused on development of scalable synthesis methods for graphene and other layered materials. “Microfluidization is a huge leap ahead towards applications of affordable and environmentally friendly graphene inks in organic photovoltaics, RFID antennas, electrically conductive coatings or nanocomposites. The method is certainly well suited for the synthesis of a variety of other layered material inks, which will enlarge the scope of applications of layered materials in real world devices.”

[phoenixs] 16/4/2019 10:15

There have been various comments on shorters. I can still see 23% short on the IG. Also, it has been the tendency for shorters to try to put the boot in when the share price has been falling. On rises of the share price they run away and take cover only for their ugly heads to rise again at a later date. Just maybe, with Miton out completely, they will find easier pastures but some will have to buy back in the future. Let's hope that there are a few more blockbuster pieces of news in the near future.

[festario] 16/4/2019 10:05

Reposted due to a sloppy error.Thanks Ridicule, and similar congrats on your recent outcome my friend!Now, it can only be PI's selling now and stifling the inexorable rise. Because the fund who was accumulating won't be in sufficient profit ...And it can't be a Director because when Neill sells sone its one big fat number and it gets reported after they have been taken up. These 10k blocks are just annoying traders or the rump of Herald's holding.

[anley] 16/4/2019 09:57

Thank you for your comments which shows just how little some people in high positions know.

Nevertheless its a big business and needs lots of cash to keep it running.........

[anley] 16/4/2019 09:54

Worth paying attention and viewing....................


hxxps://www.nanoxplore.ca/wp-content/uploads/2018/12/Corporate-presentation-2018.pdf

[spike_1] 16/4/2019 09:47

Re NanoXplore and the quality of their 'graphene'.

Their data sheet DOES NOT say 6 - 10 layers if you read the small print, which says UP TO 90% of flakes within this range.

In other words an unknown %, but not less than 10% (presumably a variable %) will be over 10 layers. It is EXTREMELY unlikely therefore that their 'Graphene Black' will pass the 'graphene' standard.

Best wishes - Spike

[ellissj] 16/4/2019 09:46

Looks like the orig tweeter is the microfluidiser uk sales agent. Best ellis

"Analytik are exclusive UK and Ireland suppliers of Microfluidics’ market leading Microfluidizer® high pressure homogenisers.

Microfluidics, part of IDEX Corporation, are manufacturers of unique high pressure homogeniser fluid processors, that are the gold standard in nano-enabled applications for uniform particle size reduction, cell disruption and nanoemulsion formation.

We will be happy to work together with you on a solution with the full support of the Microfluidicsteam, based in Westwood, USA. Visit our contact page, request a quote or call us on [phone].."

[ellissj] 16/4/2019 09:42

Interesting that cambridge university graphene centre should retweet this 'old news' about graphene inks - spun out and acquired by vrs since ?

Graphene Centre Retweeted

Analytik

@AnalytikLtd

Learn more about

@GrapheneUCam's production of high-quality, water-based conductive #graphene inks with high concentrations: (link: hxxps://analytik.co.uk/scalable-100-yield-production-of-conductive-graphene-inks/) analytik.co.uk/scalable-100-y…

12:30 pm · 27 Mar 2019

[festario] 16/4/2019 09:31

Thanks Ridicule, and similar congrats on your recent outcome my friend!Now, it can only be PI's selling now and stifling the inexorable rise. Because the fund who was accumulating won't be in sufficient numbers. And it can't be a Director because when Neill sells sone its one big fat number and it gets reported after they have been taken up. These 10k blocks are just annoying traders or the rump of Herald's holding.

[grabster] 16/4/2019 09:16

ridicule - (earlier) - the 'something big' that Zina refers to as being announced at the May summit could indeed involve VRS - but I am 70:30 inclined to think it is more likely something about the US government's stance on graphene development.

[davemac3] 16/4/2019 09:13

NanoXplore also won this award, looks like competition to me

[superg1] 16/4/2019 09:11

BTW

VRS was never in the Goldmans report, various others we know well were as were specific details about graphene ink from Cambridge.

Goldmans had not spotted VRS

[zagrosfold] 16/4/2019 09:04

15% of shares in exchange for a deal worth theoretically hundreds of millions seems a small price to pay. Buy now with a future 15% knocked off but potentially hundreds of percent more valuable because of the deal or buy later in the placing for an unknown but surely much higher placing price. That's the gamble!

[woodpeckers] 16/4/2019 09:02

Think Neill is quietly telling us that we are going to be a global giant, in case we didn't know....

Neill Ricketts
‏
Following Following @neillricketts
More Neill Ricketts Retweeted FIVE EYES
Doesn't really effect companies like apple, Rolls Royce, schlumberger, in fact almost all global Giants who produce in ChinaNeill Ricketts added,
FIVE EYES

@FIVEEYES5
Replying to @VegPatchShares @MikeWBrenner and 2 others
Have read articles myself where CEOs state the worst decision was to move into China. Their IP was stolen/ copied and they saw no real benifit.

[1teepee] 16/4/2019 09:00

hTTps://www.nanoxplore.ca/sds-tds/ Their datasheet makes say 6-10 layers

[woodpeckers] 16/4/2019 09:00

Listening again to yesterday's podcast, I noted how quickly neill responded 'by the AGM" when asked when he hoped to get the deal completed...why then?...the only reason I could come up with was so that he used the current 15% share allowance already in place which would then presumably be renewed for next year....and maybe they already have a second such deal in mind...

Note yor point raised, ridicule, re the rest of us participating...not sure how that would happen without an egm...

[axotyl] 16/4/2019 08:56

Sticking Nanoexplore in the search field for this board, about 95% of the posts mentioning them were Log's drivel.

[ridicule] 16/4/2019 08:47

Super, further to DaveMac3’s question, do you have any thoughts on Nanoxplore. The quantities they plan to produce would point to multi-layer, but they have 4 times more people than VRS and they have just won the IdTech award with a UoM person on the panel?

[f3rdinand] 16/4/2019 08:42

Yep, entirely my sentiments too! Will be a tough decision selling these shares (in years to come) as you just know it's a stock that will continue climbing way into the distance! But life is for living so no point holding on forever!

[superg1] 16/4/2019 08:41

Just to mention the US which is a recent focus of my attention but not for the reason some may think.

In the recent US news perhaps this bit was lost in the chaos.

"We are already pursuing a number of substantial opportunities in the US, particularly through the support of the National Graphene Association, and I expect our level of activity to significantly increase in the coming months, particularly given the high number of enquires we have had for the supply of our graphene and other 2D materials from leading US companies.

[1teepee] 16/4/2019 08:38

Keep that stock market open!

[1teepee] 16/4/2019 08:37

White and fluffy is that;) with four legs