Slide 1

1

ZnSxSe1-x CVT

:

:

1388

II-VI

II-VI

CVT

(CVT)

CVT

3

(1619) (1665) . (1690) ((CaCO3 .4

II-VI

II-VI

CVT

(CVT)

CVT

5

. () .

6 7 : .

: .

: .

8

II-VI

II-VI

CVT

(CVT)

CVT

9

II-VI .

.

.

.

10 ZnSxSe1-x

ZnSxSe1-x x=0.1 x=0.8 0.1 11

II-VI

II-VI

CVT

(CVT)

CVT

12

II-VI1313 .

14 14

II-VI

II-VI

CVT

(CVT)

CVT

15

CVT 1953 .

1965 RCA ZnSe .

1969 ZnSe .

1976 ZnSxSe1-x ZnSe .

1977 ZnS ZnSe ZnTe .

1979 ZnSxSe1-x ZnSe ZnS .16

II-VI

II-VI

CVT

(CVT)

CVT

17

CVT

.

:

A(s)+B(g) AB(g) AB(g) A(s)+B(g) 18

19Chemical Vapor Transport T2 T1

T1>T2

20 .

. 21

22

II-VI

II-VI

CVT

(CVT)

CVT

23

CVT

- -

24 CVT

25

II-VI

II-VI

CVT

(CVT)

CVT

26

ZnSxSe1-x27 ZnSxSe1-x I I2 ZnI2 S2 Se2 . :

28 (1) (2) (3) :

(1) (3)(2)

:

:

400-1200 oC ZnSxSe1-x I2 (C) .

ZnSxSe1-x

29 :

ZnI2 :

ZnSxSe1-x

=(T2)-(T1)

30 ZnSxSe1-x 0/6 x=

31 ZnSxSe1-x x

32

II-VI

II-VI

CVT

(CVT)

CVT

33

3434 3216 TZF CVT

35

36

37

38 .

39

40

II-VI

II-VI

CVT

(CVT)

CVT

41

CVT ZnSe

4243

ZnSe

ZnSe ZnSe

44

ZnS0.3Se0.6 ZnS0.6Se0.4

45

46 ZnS0.6Se0.4

ZnS0.7Se0.3 47

II-VI

II-VI

CVT

(CVT)

CVT

48

(XRD)

(UV-Vis)

SEM

(Etching)49 XRD50

50

x ZnS0.3Se0.6 XRD5151 x ZnS0.6Se0.4

XRD 5252 Vickers Hardness

5353 (111) a) ZnS0.6Se0.4 b) ZnS0.3Se0.7 c) ZnSe

Vickers Hardness

5454 UV-Visible Spectroscopy

55 55 UV-Visible Spectroscopy

ZnS0.3Se0.7444 nm5656 UV-Visible Spectroscopy

ZnSe497.5 nm575758

SEM

ZnSe ZnSe 5959 SEM

ZnSe ZnSe

6060 SEM

ZnS0.6Se0.4

6161 Etching

(111) ZnSe

6262 Etching

63 (111) ZnS0.6Se0.463 Etching

(111) ZnS0.6Se0.4

6464

II-VI

II-VI

CVT

(CVT)

CVT

65

ZnSxSe1-x-I2 CVT x . x . ZnSe .

ZnSxSe1-x x=0.0 x=0.3 x=0.6 .

ZnSe . x=0.0 ZnSe .

ZnSe .

ZnSxSe1-x x . 66

. x x . .

67Aurelio Catano and Zoltan K. Kun, Journal of Crystal Growth 33(1976) 324-330

P. Hartmann, in Crystal Growth An Introduction, Ed. P. Hartman (1973) P.368

M.J.Tafreshi, M.Fazli; Indian Journal of pure and applied physics, (2008)651-656

" ZnSxSe1-x CVT" 1388-

S. Armstrong, P.K. Datta, R.W. Miles, Thin Solid Films 403-404 (2002) 126-129

M.J. Tafreshi,K. Balakrishnan and R. Dhanasekaran " Growth, electrical conductivity and microindentation studies of CuInS2 single crystals", I1 nuovo Cimento D, Vol 18 (1996) 471-476

K. Sangwal , Prog. Cryst. Growth Character.19, 189(1989)

M.J. Tafreshi,K. Balakrishnan ,R. Dhanasekaran, "Micromorphological studies on the ZnSe single crystals grown by chemical vapor transport technique", journal of materials science 32(1997) 3517-3521

K.Sangwal, "Etching of crystals; Theory, experiment, and application" (1987)P.23

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