Name: 可能的任務：石墨烯。 (MISSION POSSIBLE: Graphene)
Uploaded: 2021-01-14T06:42:08.000Z
Duration: 3 min 42 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

You were thrown into a dingy room and told "You can't leave until you have created the

Not only that, it must also be the strongest,

and as good at conducting electricity as copper.

You know, really really tiny devices and materials that are less than a hundred nanometres

Of course, I don't have to tell you a nanometre is a billionth of a meter.

But how do you create something that tiny?

It's time to embrace your inner MacGyver.

You're gonna need a pencil, some scotch tape

A pencil contains not lead but graphite, which consists of sheets of carbon in a

When you write, layers of graphite slide off the tip of the pencil and stick to the

Usually, many layers are stacked on top of each other

but once in a while you get a single layer of carbon atoms.

In 2004, Andre Geim and Konstantin Novoselov created

graphene using nothing but graphite and scotch tape.

They placed a graphite flake onto the tape,

folded it in two and then cleaved the flake in half.

They repeated this procedure a number of times and then studied the resulting fragments.

they found some of the pieces were only a single atom thick.

This was particularly unexpected because it was thought a single layer of

Graphene conducts electrons faster than any other substance at room temperature.

This is because of the extraordinarily high quality of the graphene lattice.

Scientists are yet to find a single atom out of place in graphene.

Since the electrons aren't scattered by defects in the lattice,

that Einstein's relativity must be used to  understand their motion.

And this perfect lattice is created by the very strong yet flexible bonds between

if you could balance an elephant on a pencil and

For their discovery, Geim and Novoselov were awarded the Nobel Prize

And this is only the beginning for Graphene.

Scientists are hard at work exploiting its unique properties to create:

Thin, transparent, flexible touch screens;

Smaller, faster, more energy efficient computers;

And now consider: this is only one aspect of nanotechnology,

字幕列表影片播放

可能的任務：石墨烯。 (MISSION POSSIBLE: Graphene)

stick

incredibly

aspect

material