In graphene, why is a 4 V gate voltage needed to Pauli-block interband transitions of 0.8 eV?

23 April 2021 1 7K Report

Please help me understand: I don’t understand why the drive voltage in this paper needs to be so high to allow light transmission:

https://www.nature.com/articles/nature10067

Manuel Gómez

Dear Sam Lin , according to the paper by Liu et al. broadening and offsetting of the drive voltage are due to graphene defects and natural doping from the substrate respectively.

Hope it helps.

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