Photoluminescent, undoped ZnO films have been fabricated using spray pyrolysis of zinc nitrate solution. The luminescent films had a polycrystalline hexagonal wurtzite type structure with no preferred orientation. Photoluminescence intensity was critically dependent on substrate temperature during spray pyrolysis and on post-annealing temperature. Green, photoluminescent films possessed a porous structure while orange films possessed a close packed granular morphology. Green luminescence appears to be due to oxygen vacancies in a layer just below the crystallite surface.

1.
Thin Film Solar Cells, edited by K. L. Chopra and S. R. Das (Plenum, New York, 1983).
2.
K. S.
Weissenrieder
and
J.
Muller
,
Thin Solid Films
300
,
30
(
1997
).
3.
J.
Muller
and
S.
Weissenrieder
,
Fresenius J. Anal. Chem.
349
,
380
(
1994
).
4.
F.-C.
Lin
,
Y.
Takao
,
Y.
Shimizu
, and
M.
Egashira
,
Sens. Actuators B
24–25
,
843
(
1995
).
5.
M. S.
Ramanchalam
,
A.
Rohatgi
,
W. B.
Carter
,
J. P.
Shaffer
, and
T. K.
Gupta
,
J. Electron. Mater.
24
,
413
(
1995
).
6.
W.-C.
Shih
and
M.-S.
Wu
,
J. Cryst. Growth
137
,
319
(
1994
).
7.
J.
Zhong
,
A. H.
Kitai
, and
P.
Mascher
,
J. Electrochem. Soc.
140
,
3644
(
1993
).
8.
K.
Vanheusden
,
W. L.
Warren
,
C. H.
Seager
,
D. R.
Tallant
,
J. A.
Voigt
, and
B. E.
Gnade
,
J. Appl. Phys.
79
,
7983
(
1996
).
9.
Y.
Sato
and
S.
Sati
,
Thin Solid Films
281
,
445
(
1996
).
10.
Y.
Natsume
,
H.
Sakata
,
T.
Hirayama
, and
H.
Yanagida
,
J. Appl. Phys.
72
,
4203
(
1992
).
11.
D. J.
Goyal
,
C.
Agashe
,
M. G.
Takwale
,
B. R.
Marathe
, and
V. G.
Bhide
,
J. Mater. Sci.
27
,
4705
(
1992
).
12.
J.
de Merchant
and
M.
Cocivera
,
Chem. Mater.
7
,
1742
(
1995
).
13.
S. A.
Studenikin
,
N.
Golego
, and
M.
Cocivera
,
J. Appl. Phys.
83
,
2104
(
1998
).
14.
T. M.
Young
,
S. H.
Kim
,
H. Y.
Moon
,
G. C.
Park
,
Y. J.
Kim
, and
K. W.
Kim
,
Jpn. J. Appl. Phys., Part 1
35
,
6208
(
1996
).
15.
N.
Benramdane
,
W. A.
Murad
,
R. H.
Misho
,
M.
Ziane
, and
Z.
Kebbab
,
Mater. Chem. Phys.
48
,
119
(
1997
).
16.
C. T.
Troy
,
Photonics Spectra
31
,
34
(
1997
).
17.
K.
Vanheusden
,
C. H.
Seager
,
W. L.
Warren
,
D. R.
Tallant
,
J.
Caruso
,
M. J.
Hampden-Smith
, and
T. T.
Kodas
,
J. Lumin.
75
,
11
(
1997
).
18.
A.
Ortiz
,
C.
Falcony
,
J. A.
Hernandez
,
M.
Garcia
, and
J. C.
Alonsa
,
Thin Solid Films
293
,
103
(
1997
).
19.
C.
Falcony
,
A.
Ortiz
,
M.
Garcia
, and
J. S.
Helman
,
J. Appl. Phys.
63
,
2378
(
1988
).
20.
A.
Ortiz
,
C.
Falcony
,
M.
Garcia
, and
A.
Sanchez
,
J. Phys. D
20
,
671
(
1987
).
21.
A.
Ortiz
,
M.
Garcia
, and
C.
Falcony
,
Mater. Chem. Phys.
24
,
383
(
1990
).
22.
O. F.
Schirmer
and
D.
Zwingel
,
Solid State Commun.
8
,
1559
(
1970
).
23.
S.
Takata
,
T.
Minami
,
H.
Nanto
, and
T.
Kawamura
,
Phys. Status Solidi A
65
,
K83
(
1981
).
24.
H.
Nanto
,
T.
Minami
, and
S.
Takata
,
Phys. Status Solidi A
65
,
K131
(
1981
).
25.
R. B.
Lauer
,
J. Phys. Chem. Solids
34
,
249
(
1973
).
26.
O.
Milosevic
,
V.
Gagic
,
J.
Vodnik
,
A.
Mitrovic
,
L.
Karanovic
,
B.
Stojanovic
, and
L.
Zivkovic
,
Thin Solid Films
296
,
44
(
1997
).
27.
Comprehensive Inorganic Chemistry, 1st ed., edited by J. C. Bailar, A. F. Trotman-Dickenson, H. J. Emeleus, and S. R. Nyholm (Pergamon, Oxford, 1973), Vol. 3.
28.
Handbook of X-rays, edited by E. F. Kaelble (McGraw-Hill, New York, 1967).
29.
L.
Alexander
,
J. Appl. Phys.
25
,
155
(
1954
).
30.
B. S.
Pierce
and
R. L.
Hengehold
,
J. Appl. Phys.
47
,
644
(
1976
).
31.
P. Kofstad, Nonstoichiometry, Diffusion, and Electrical Conductivity in Binary Metal Oxides (Wiley, New York, 1972).
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