InSb-InAs nanowire heterostructure diodes investigated by electron beam induced current (EBIC) demonstrate an unusual spatial profile where the sign of the EBIC signal changes in the vicinity of the heterointerface. A qualitative explanation confirmed by theoretical calculations is based on the specific band diagram of the structure representing a type-III heterojunction with an accumulation layer in InAs. The sign of the EBIC signal depends on the specific parameters of this layer. In the course of measurements, the diffusion length of holes in InAs and its temperature dependence are also determined.

1.
K. L.
Kavanagh
,
Semicond. Sci. Technol.
25
,
024006
(
2010
).
2.
P.
Caroff
,
M. M.
Messing
,
B. M.
Borg
,
K. A.
Dick
,
K.
Deppert
, and
L.-E.
Wernersson
,
Nanotechnology
20
,
495606
(
2009
).
3.
P.
Caroff
,
J. B.
Wagner
,
K. A.
Dick
,
H. A.
Nilsson
,
M.
Jeppsson
,
K.
Deppert
,
L.
Samuelson
,
L. R.
Wallenberg
, and
L.-E.
Wernersson
,
Small
4
,
878
(
2008
).
4.
H. A.
Nilsson
,
P.
Caroff
,
C.
Thelander
,
E.
Lind
,
O.
Karlstrom
, and
L.-E.
Wernersson
,
Appl. Phys. Lett.
96
,
153505
(
2010
).
5.
D.
Ercolani
,
F.
Rossi
,
A.
Li
,
S.
Roddaro
,
V.
Grillo
,
G.
Salviati
,
F.
Beltram
, and
L.
Sorba
,
Nanotechnology
20
,
505605
(
2009
).
6.
A.
Pitanti
,
D.
Ercolani
,
L.
Sorba
,
S.
Roddaro
,
F.
Beltram
,
L.
Nasi
,
G.
Salviati
, and
A.
Tredicucci
,
Phys. Rev. X
1
,
011006
(
2011
).
7.
J. D.
Russell
and
C.
Leach
,
Acta Mater.
17
,
6227
(
1998
).
8.
H.
Demers
,
N.
Poirier-Demers
,
A. R.
Couture
,
D.
Joly
,
M.
Guilmain
,
N. D.
Jonge
, and
D.
Drouin
,
Scanning
33
,
135
(
2011
).
9.
H. J.
Leamy
,
J. Appl. Phys.
53
,
R51
(
1982
).
10.
D. B.
Holt
and
D.C.
Joy
,
SEM Microcharacterization of Semiconductors
(
Academic
,
London
,
1989
), Chap. 6, pp.
241
296
.
11.
A.
Gustafsson
,
M. T.
Björk
, and
L.
Samuelson
,
Nanotechnology
18
,
205306
(
2007
).
12.
G. A.
Sai-Halasz
,
R.
Tsu
, and
L.
Esaki
,
Appl. Phys. Lett.
30
,
651
(
1977
).
14.
E.
Dupuy
,
D.
Morris
,
N.
Pauc
,
V.
Aimez
,
M.
Gendry
, and
D.
Drouin
,
Appl. Phys. Lett.
94
,
022113
(
2009
).
15.
O.
Madelung
,
Semiconductors: Data Handbook
, 3rd ed. (
Springer
,
Berlin
,
2004
).
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