Microstructural and Optical Characterization of Heterostructures of ZnS/CdS and CdS/ZnS Synthesized by Chemical Bath Deposition Method
Table 1
Some standard, observed, and calculated structural parameters of CdS/glass, CdS/ZnS, ZnS/glass, and ZnS/CdS thin films (JCPDS # used 00-010-0454 for cubic CdS and 01-089-2174 for hexagonal ZnS).
Sample
2θ (deg)
Phase
Index
FWHM (deg)
D (nm)
ε (x10-3)
Standard d-spacing (Å)
Observed d-spacing (Å)
CdS/glass
26.71
CdS (C)
(111)
0.35716
22.86
1.5158
3.3600
3.3351
ZnS/CdS
23.23
ZnS (H)
(0024)
0.4705
17.24
2.0107
3.6447
3.8179
27.18
ZnS (H)
(014)
0.7829
10.44
3.3203
3.2735
3.2788
28.57
ZnS (H)
(0028)
0.5956
13.76
2.5185
3.1240
3.1217
47.80
ZnS (H)
(117)
1.1077
7.85
4.4186
1.8900
1.9011
ZnS/glass
23.59
ZnS (H)
(0024)
1.9336
4.19
8.2586
3.6447
3.7684
27.32
ZnS (H)
(014)
0.7851
10.41
3.3288
3.2735
3.2673
28.52
ZnS (H)
(0028)
0.9209
8.90
3.8945
3.1240
3.1274
47.98
ZnS (H)
(117)
0.8278
10.50
3.3001
1.8900
1.8947
CdS/ZnS
28.53
ZnS (H)
(0028)
1.1022
7.43
4.6608
3.1240
3.1263
47.99
ZnS (H)
(117)
0.9790
8.88
3.9023
1.8900
1.8942
The letters “C” and “H” refer the cubic and hexagonal structures, respectively.
