Question

List 6 semiconductor carbon nanotubes (n,m) in order from smallest to largest band gap.

List 6 metallic carbon nanotubes

Answer 1

Answer:-

6 Semiconductor carbon nanotubes are (n,m):-

1:- (13,0)

2:- (11,0)

3:- (10,0)

4:- (8,0)

5:- (7,0)

6:- (5,0)

6 Metallic carbon nanotubes are:-  

1:- (12,0)

2:- (9,0)

3:- (6,0)

4:- (4,1)

5:- (3,0)

6:- (1,1)

Answer 2

Carbon nanotubes (CNTs) can be classified into two main categories based on their band gap: semiconductor CNTs and metallic CNTs. The band gap of CNTs is determined by their (n, m) indices, where n and m are integers that define the tube's chirality.

1. Semiconductor Carbon Nanotubes (in order of smallest to largest band gap): (5,0), (4,2), (3,3), (6,0), (8,0), (9,0)

2. Metallic Carbon Nanotubes (in no particular order): (5,5), (10,0), (7,0), (6,6), (12,0), (9,9)

Please note that the band gap of CNTs can be affected by various factors, and the values provided here are general trends. The exact band gaps may vary based on different experimental conditions and the specific arrangement of carbon atoms in the nanotubes.