Researchers studied the electronic properties of a one-dimensional chain sulfur by encapsulating S atoms within a single-walled carbon nanotube. The atomic radius of S is rs = 1.02 Å. For the graphene, the C-C bond length is b = 1.42 Å and surface engery is γ=46.7 mJ/ m2 . (b) In bulk, sulfur needs ultrahigh pressures exceeding ~90 GPa to become metallic. Based on your band diagram, do you expect the encapsulated S chain to be a metal, semiconductor, or insulator?
Researchers studied the electronic properties of a one-dimensional chain sulfur by encapsulating S atoms within a single-walled carbon nanotube. The atomic radius of S is rs = 1.02 Å. For the graphene, the C-C bond length is b = 1.42 Å and surface engery is γ=46.7 mJ/ m2 . (b) In bulk, sulfur needs ultrahigh pressures exceeding ~90 GPa to become metallic. Based on your band diagram, do you expect the encapsulated S chain to be a metal, semiconductor, or insulator?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Researchers studied the electronic properties of a one-dimensional chain sulfur by encapsulating S atoms within a single-walled carbon nanotube. The atomic radius of S is rs = 1.02 Å. For the graphene, the C-C bond length is b = 1.42 Å and surface engery is γ=46.7 mJ/ m2 .
(b) In bulk, sulfur needs ultrahigh pressures exceeding ~90 GPa to become metallic. Based on your band diagram, do you expect the encapsulated S chain to be a metal, semiconductor, or insulator?
Transcribed Image Text:S atoms
CNT edge
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