Transition rules and optical properties of armchair graphene nanoribbons embedded in hexagonal boron nitride lattices are studied for the first time. Based on tight binding calculations considering first and second nearest neighbors, we show that the optical transition rules of such structures are completely different from that of conventional graphene nanoribbons. These rules are explained by the symmetry properties of the subband wave functions. The optical spectrum, the quantum efficiency, and the photoresponsivity of different nanoribbons are evaluated and their application in photodetector devices is investigated. The results are verified with first principles calculations.
REFERENCES
1.
M.
Freitag
, Nat. Nanotechnol.
3
, 455
(2008
).2.
F.
Bonaccorso
, Z.
Sun
, T.
Hasan
, and A.
Ferrari
, Nat. Photonics
4
, 611
(2010
).3.
F.
Zheng
, K.-I.
Sasaki
, R.
Saito
, W.
Duan
, and B.-L.
Gu
, J. Phys. Soc. Jpn.
78
, 074713
(2009
).4.
Y.
Ding
, Y.
Wang
, and J.
Ni
, Appl. Phys. Lett.
95
, 123105
(2009
).5.
G.
Seol
and J.
Guo
, Appl. Phys. Lett.
98
, 143107
(2011
).6.
R.
Saito
, G.
Dresselhaus
, and M.
Dresselhaus
, Physical Properties of Carbon Nanotubes
(Imperial College Press
, London
, 1998
).7.
S.
Reich
, J.
Maultzsch
, C.
Thomsen
, and P.
Ordejón
, Phys. Rev. B
66
, 035412
(2002
).8.
Y.
Hancock
, A.
Uppstu
, K.
Saloriutta
, A.
Harju
, and M. J.
Puska
, Phys. Rev. B
81
, 245402
(2010
).9.
D.
Gunlycke
and C. T.
White
, Phys. Rev. B
77
, 115116
(2008
).10.
M.
Freitag
, Y.
Martin
, J.
Misewich
, R.
Martel
, and P.
Avouris
, Nano Lett.
3
, 1067
(2003
).11.
H.
Hsu
and L. E.
Reichl
, Phys. Rev. B
76
, 045418
(2007
).12.
S.
Tasaki
, K.
Maekawa
, and T.
Yamabe
, Phys. Rev. B
57
, 9301
(1998
).13.
A.
Grüneis
, R.
Saito
, G. G.
Samsomidze
, T.
Kimura
, M. A.
Pimenta
, A.
Jorio
, A. G. S.
Filho
, G. D.
Dresselhaus
, and M. S.
Dresselhaus
, Phys. Rev. B
67
, 165402
(2003
).14.
J. M.
Soler
, E.
Artacho
, J. D.
Gale
, A.
García
, J.
Junquera1
, P.
Ordejón
, and D.
Sánchez-Portal
, J. Phys.: Condens. Matter
14
, 2745
(2002
).15.
P. T.
Yu
and M.
Cardona
, Fundamentals of Semiconductors: Physics and Materials Properties
(Springer
, Berlin
, 2001
).16.
Symmetry and Spectroscopy: Introduction to Vibrational and Electronic Spectroscopy
, edited by D. C.
Harris
and M. D.
Bertolucci
(Courier Dover Publications
, 1989
).17.
K. I.
Sasaki
, K.
Kato
, Y.
Tokura
, K.
Oguri
, and T.
Sogawa
, Phys. Rev. B
84
, 085458
(2011
).18.
H. C.
Chung
, M. H.
Lee
, C. P.
Chang
, and M. F.
Lin
, Opt. Express
19
, 23351
(2011
).19.
F.
Xia
, T.
Mueller
, Y.-M.
Lin
, A.
Valdes-Garcia
, and P.
Avouris
, Nat. Nanotechnol.
4
, 839
(2009
).20.
M.
Pourfath
, O.
Baumgartner
, S.
Kosina
, and S.
Selberherr
, in Proceedings of the 9th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD
(IEEE, 2009
), p. 13
.21.
S. V.
Goupalov
, Phys. Rev. B
72
, 195403
(2005
).22.
H.
Zheng
, Z.
Wang
, T.
Luo
, Q.
Shi
, and J.
Chen
, Phys. Rev. B
75
, 165414
(2007
).23.
T. G.
Pedersen
, Phys. Rev. B
67
, 113106
(2003
).© 2012 American Institute of Physics.
2012
American Institute of Physics
You do not currently have access to this content.
