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Stenciling with atoms in 2-dimensional materials possible

The possibilities for the new field of two-dimensional, one-atomic-layer-thick materials, including but not limited to graphene, appear almost limitless. In new research, Penn State material scientists report two discoveries that will provide a simple and effective way to “stencil” high-quality 2D materials in precise locations and overcome a barrier to their use in next-generation electronics.

In 2004, the discovery of a way to isolate a single atomic layer of carbon – graphene – opened a new world of 2D materials with properties not necessarily found in the familiar 3D world. Among these materials are a large group of elements – transition metals – that fall in the middle of the periodic table. When atoms of certain transition metals, for instance molybdenum, are layered between two layers of atoms from the chalcogenide elements, such as sulfur or selenium, the result is a three-layer sandwich called a transition metal dichalcogenide. TMDs have created tremendous interest among materials scientists because of their potential for new types of electronics, optoelectronics and computation.

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What Is a quantum leap?

A quantum leap is an election jumping up an energy level. When the electron jumps up - it does not exist until it reaches the next energy level. When it falls back down an energy level - it releases the energy as light.

I wish I could have been there.

Daytona beach 1957

The speed of light.

light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second

Hehe 😀

Former cover pic

Observation - the act of defining any superposition.