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AMERICAN CERAMIC SOCIETY

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advances in nanomaterials<br />

New graphene ‘hub’ and electronics discovery create excitement in UK<br />

In early October, the United Kingdom’s<br />

Chancellor of the Exchequer<br />

George Osborne announced plans by<br />

the government to invest £50 million<br />

(about $80 million) in a new graphenebased<br />

R&D center. The center, to be<br />

called the Graphene Global Research<br />

and Technology Hub, will be located at<br />

the University of Manchester.<br />

The location in many ways is a tribute<br />

to the past and ongoing work by<br />

Andre Geim and Kostya Novoselov,<br />

who discovered graphene at the University<br />

of Manchester in 2004 and were<br />

awarded the 2010 Nobel Prize in physics.<br />

Geim and Novoselov’s pioneering<br />

work has allowed them to attract a talented<br />

team and stay at the forefront of<br />

this field, where a lot of ideas for commercialization<br />

are being brewed.<br />

Although no timetables are being<br />

proposed in regard to real commercialization<br />

opportunities, Osborne, according<br />

to a university news release, told<br />

attendees of a Conservative Party Conference,<br />

“…We will fund a national<br />

research program that will take this<br />

Nobel-prize-winning discovery from the<br />

British laboratory to the British factory<br />

floor. … We’re going to get Britain<br />

making things again.”<br />

In the same release, the university,<br />

itself, goes on to predict, “The development<br />

of the Hub will capitalize on<br />

the UK’s international leadership in<br />

the field. It will act as a catalyst to<br />

spawn new businesses, attract global<br />

companies and translate the value of<br />

scientific discovery into wealth and job<br />

creation for the UK. The center would<br />

help develop the technology to allow<br />

manufacture on a scale that would open<br />

up the promising commercial opportunities,<br />

incorporating a large doctoral<br />

training center and advanced research<br />

equipment.”<br />

To be sure, there are many other graphene<br />

research efforts, public and private,<br />

in the UK and around the world.<br />

Responding to the news about the<br />

funding for the Manchester hub, a story<br />

American Ceramic Society Bulletin, Vol. 90, No. 9 | www.ceramics.org<br />

Noble laureates Novoselov and Geim,<br />

left, along with Nancy Rothwell, president<br />

and vice-chancellor of the University of<br />

Manchester, meet with UK Science Minister<br />

David Willetts and Osborne to discuss plans<br />

for a new graphene-based R&D hub to be<br />

located at the school.<br />

at Optics.org notes, “Though it is home<br />

to the graphene discoverers, when it<br />

comes to future commercialization of<br />

the technology, the UK will face stiff<br />

competition from both competing<br />

academic institutions and many of the<br />

world’s largest technology companies.”<br />

Already several big-name companies,<br />

such as IBM, Hitachi and TDK, have<br />

received patents for novel graphenebased<br />

devices. But, as is usually the<br />

case, having a patent and having a<br />

commercial success are unrelated<br />

events. Although there is a lot of promise,<br />

there is still a long way to go in<br />

fundamental research and,<br />

at the other end of the spectrum,<br />

basic processing and<br />

application methods.<br />

Given the interest and<br />

competition, the £50 million<br />

investment could easily<br />

be dwarfed if not carefully<br />

targeted. Along these lines,<br />

the Optics.org story discusses<br />

the views of another UK graphene<br />

researcher, Karl Coleman<br />

(University of Durham),<br />

and reports, “Coleman thinks<br />

that manufacturing ought to<br />

be one of the priority areas<br />

for the future technology<br />

hub, and also points out that<br />

graphene applications go<br />

beyond the high-profile areas<br />

(Credit: Univ. of Manchester.)<br />

of electronics, displays and aerospace.<br />

‘[We] would like to see the hub include<br />

what we sometimes call the low-hanging<br />

fruits, such as capacitors, conducting<br />

inks and composites, to name just<br />

a few, that are likely to be commercialized<br />

much sooner,’ he said.”<br />

On the other hand, Geim and<br />

Novoselov do have a high-profile<br />

electronics application in mind for<br />

graphene: the elusive replacement for<br />

the silicon chip. In a paper, “Tunable<br />

Metal–Insulator Transition in Double-<br />

Layer Graphene Heterostructures,”<br />

recently published in Nature Physics<br />

(doi:10.1038/nphys2114), their group<br />

discusses the creation of double boron<br />

nitride–graphene sandwich structures.<br />

Essentially, these investigators transferred<br />

a graphene monolayer to the top<br />

of a 20- to 30- nanometer-thick BN<br />

crystal (prepared on a silicon wafer).<br />

The graphene was then covered with<br />

another BN crystal and another graphene<br />

monolayer. Both monolayers<br />

were given multiterminal shapes, individual<br />

electrical contacts and aligned<br />

identically over each other.<br />

According to the authors of the<br />

paper, the four-layer structure for the<br />

first time allowed the behavior of gra-<br />

Ponomarenko with boron nitride–graphene sandwich<br />

device.<br />

(Credit: Univ. of Manchester.)<br />

17

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