Close-spaced sublimation growth of homo- and hetero-epitaxial CdTe thick films

Jiang, Quanzhong; Cantwell, B.J.; Mullins, J.T.; Basu, Arnab; Brinkman, A.W.

doi:10.1016/j.jcrysgro.2007.12.043

Cited by 15 publications

(8 citation statements)

References 15 publications

(21 reference statements)

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“…Therefore, CSS method is widely used for the deposition of CdTe films [1,8,9,17,18]. This technique has many variants [1]: sublimation of compound with the inert carrier gas (Ar, N 2 ) [13,14], vacuum sublimation with [8] or without hot-walls [9,17,19].…”

Section: Introductionmentioning

confidence: 99%

Study of the structural and photoluminescence properties of CdTe polycrystalline films deposited by close-spaced vacuum sublimation

Kosyak

Opanasyuk

Bukivskij

et al. 2010

Journal of Crystal Growth

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a b s t r a c tThe polycrystalline CdTe films were deposited by the close-spaced vacuum evaporation at the different substrate temperatures (150-550 1C). The X-ray diffraction measurements of structural and substructural properties of these films were carried out to study their phase composition and texture. The films' parameters such as the coherent scattering domain size, microdeformation level and mean density of dislocations were determined based on the broadening of diffraction peaks. In this case the Hall and three-fold convolution approximations were used. Surface morphology, grain size and growth mechanism of the films were determined by the scanning electron microscopy. The low temperature photoluminescence measurements allowed us to establish the correlation between the point and extended defect structure on the one hand and the growth conditions on the other. As a result, the growth conditions of CdTe polycrystalline films with fairly good crystal and optical quality were determined.

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Section: Introductionmentioning

confidence: 99%

Study of the structural and photoluminescence properties of CdTe polycrystalline films deposited by close-spaced vacuum sublimation

Kosyak

Opanasyuk

Bukivskij

et al. 2010

Journal of Crystal Growth

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“…Furthermore, either powder or bulk source materials can be used to grow single crystal layers. 17,18 Apart from CdZnTe, CSS is also suitable for the epitaxy of several other important optoelectronic materials such as SiC 19 and AlN. 20 The idea of growing semiconductor films through CSS was first proposed by Nicoll 21 in 1963.…”

Section: Introductionmentioning

confidence: 99%

“…al. 18 adopted a lower deposition rate for the nucleation stage and then increased it for prolonged deposition of the film. We find that epitaxial CdZnTe films can be obtained in one step at high growth rates with the proper control of the growth conditions.…”

Section: Introductionmentioning

confidence: 99%

One-step fast deposition of thick epitaxial CdZnTe film on (001)GaAs by close-spaced sublimation

et al. 2012

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“…Alternatively, the use of CSS for CdTe epitaxial growth on GaAs and CdTe substrates has been investigated in a limited fashion. 25 In this study, the potential to grow CdTe epitaxial films on CdTe(111)B substrates was explored, using the conventional CSS reactor illustrated in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Smooth CdTe(111) Films by the Conventional Close-Spaced Sublimation Technique

Escobedo

Quinones

Adame

et al. 2010

Journal of Elec Materi

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Thin epitaxial CdTe films were grown on CdTe(111)B substrates by the close-spaced sublimation (CSS) technique and were characterized over a range of experimental parameters. The source temperature was varied between 480°C and 540°C, maintaining an average constant source-substrate temperature difference DT of $130°C. Helium was used as a carrier gas at pressures between 2 Torr and 10 Torr. Scanning electron microscopy (SEM) and x-ray diffraction (XRD) were used to analyze the film morphology and structure. Growth rates ranging from 1 lm/h to 4 lm/h were observed, based on profilometer thickness measurements. The addition of a pre-growth heat treatment step and post-growth annealing treatment resulted in smooth CdTe (111) films. An evolution in growth morphology was demonstrated with SEM images and film quality was confirmed with XRD.

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Close-spaced sublimation growth of homo- and hetero-epitaxial CdTe thick films

Cited by 15 publications

References 15 publications

Study of the structural and photoluminescence properties of CdTe polycrystalline films deposited by close-spaced vacuum sublimation

Study of the structural and photoluminescence properties of CdTe polycrystalline films deposited by close-spaced vacuum sublimation

One-step fast deposition of thick epitaxial CdZnTe film on (001)GaAs by close-spaced sublimation

Characterization of Smooth CdTe(111) Films by the Conventional Close-Spaced Sublimation Technique

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