TY  - JOUR
AU  - Madarász, János
AU  - Okuya, M
AU  - Kaneko, S
TI  - Preparation of covellite and digenite thin films by an intermittent spray pyrolysis deposition method
JF  - JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
J2  - J EUR CERAM SOC
VL  - 21
PY  - 2001
IS  - 10-11
SP  - 2113
EP  - 2116
PG  - 4
SN  - 0955-2219
DO  - 10.1016/S0955-2219(01)00183-2
UR  - https://m2.mtmt.hu/api/publication/1246217
ID  - 1246217
AB  - Intermittent spray pyrolysis of 0.01-0.20 M aqueous solutions of CuCl
(dissolved in the presence of 3-fold molar amount of thiourea) onto a
heated alkali-free glass substrate in air already at 225-275 degreesC
resulted in various thin films of CuS (covellite) and/or Cu(1.8)s
(Cu9S5, digenite). A combination of low pyrolysis temperatures (225-250
degreesC) and low solution concentrations (0.01-0.02 M) has resulted in
the formation of thin solid CuS films. At a pyrolysis temperature of
275 degreesC Cu1.8S films have been obtained. The higher concentration
range (0.05-0.20 M) has been found favorable for simultaneous formation
of Cu1.8S and CuS. In the two-phase layers the crystal growth of CuS
has seemed to be limited, whilst the growth of Cu1.8S has been
preferentially favored especially on its (0 0 15) lattice plane. (C)
2001 Elsevier Science Ltd. All rights reserved.
LA  - English
DB  - MTMT
ER  -