Cylindrical quantum dots of diameter ∼8 nm and height 3–10 nm, and wires of diameter 50 nm and height 500–1000 nm, were self-assembled by electrodepositing semiconductors in the nanometer-sized pores of anodic alumina films. Current–voltage characteristics of both wires and dots show Coulomb blockade at room temperature, while the wires also show a Coulomb staircase when exposed to infrared radiation. These results establish that electrochemical self-assembly is a viable technique for producing nanostructures that have potential uses in room-temperature single electronics.

1.
S. Bandyopadhyay and A. E. Miller, in Handbook of Advanced Electronic and Photonic Materials and Devices, edited by H. S. Nalwa (Academic, San Diego, 2000), Vol. 6, Chap. 1, pp. 1–27 and references therein.
2.
N.
Kouklin
,
L.
Menon
,
A. Z.
Wong
,
D. W.
Thompson
,
J. A.
Woollam
,
P. F.
Williams
, and
S.
Bandyopadhyay
,
Appl. Phys. Lett.
79
,
4423
(
2001
).
Google Scholar
 
3.
L.
Menon
et al.,
J. Electron. Mater.
29
,
510
(
2000
).
Google Scholar
 
4.
For a high resolution TEM picture of 10 nm Fe dots, see
S.
 
Bandyopadhyay
,
Physica E (Amsterdam)
 
11
,
126
(
2001
).
Google Scholar
 
Materials electrodeposited in ∼10 nm pores turn out to be single crystal, whereas materials electrodeposited in wider (50 nm) and longer pores are polycrystalline.
5.
S.
Bhattacharyya
,
S. K.
Saha
, and
D.
Chakravorty
,
Appl. Phys. Lett.
77
,
3770
(
2000
).
Google Scholar
 
6.
P. Delsing, in Single Charge Tunneling, edited by H. Grabert and M. H. Devoret (Plenum, New York, 1992), Chap. 7, pp. 249–274.
7.
S. M. Sze, Physics of Semiconductor Devices (Wiley, New York, 1981).
8.
R. P.
Andres
et al.,
Science
272
,
1323
(
1996
).
Google Scholar
 
9.
R. P.
Andres
et al.,
Science
273
,
1690
(
1996
).
Google Scholar
 
10.
E. S.
Soldatov
, LANL e-print xxx.lanl.gov/abs cond-mat/9610155.
11.
J. B.
Barner
and
S. T.
Ruggiero
,
Phys. Rev. Lett.
59
,
807
(
1987
).
Google Scholar
 
12.
K. K.
Likharev
,
N. S.
Bakhvalov
,
G. S.
Kazacha
, and
S. I.
Serdyukova
,
IEEE Trans. Magn.
25
,
1436
(
1989
).
Google Scholar
 
13.
N. S.
 
Bakhvalov
,
G. S.
 
Kazacha
,
K. K.
 
Likharev
, and
S. I.
 
Serdyukova
,
Zh. Eksp. Teor. Fiz.
 
95
,
1010
(
1989
);
Google Scholar
 
N. S.
Bakhvalov
,
G. S.
Kazacha
,
K. K.
Likharev
, and
S. I.
Serdyukova
,
Sov. Phys. JETP
68
,
581
(
1989
).
Google Scholar
 
14.
L. S.
Kuzmin
,
P.
Delsing
,
T.
Claeson
, and
K. K.
Likharev
,
Phys. Rev. Lett.
62
,
2539
(
1989
).
Google Scholar
 
15.
G.-L. Ingold and Yu. V. Nazarov, in Single Charge Tunneling, edited by H. Grabert and M. H. Devoret (Plenum, New York, 1992), Chap. 2, pp. 21–107.
This content is only available via PDF.
© 2002 American Institute of Physics.
2002
American Institute of Physics
You do not currently have access to this content.