In a paper published online today (July 22) in the journal Science Advances, Terrones and colleagues revealed that
adding nitrogen atoms to the pristine graphene further enhances sensitivity and, importantly, they gave a theoretical explanation for how graphene and N - doped graphene cause the enhancement.
The key to the whole design is
the added nitrogen atom together with a neighboring vacancy in the crystal structure.
Not exact matches
By raising the temperature to 85 °C and
adding more hydrogen, the researchers got some of the paired
nitrogen atoms to
add two more hydrogens; then, each
nitrogen atom left its partner completely to form ammonia (NH3).
Here there are two options: either you insert a single
nitrogen atom into the extremely fine tip, or you
add nitrogen at the final phase of the diamond production process.
Nitrogen, in the form of nitric oxide (one
nitrogen atom and one oxygen
atom), has been detected for the first time on the surface of Mars by a team of researchers using the Sample Analysis at Mars (SAM) instrument suite aboard NASA's Curiosity rover,
adding to the growing speculation that life could have once flourished on ancient Mars.