The electrical properties of evaporated films of cadmium sulphide

Wilson, J. I. B.; Woods, J.

doi:10.1016/0022-3697(73)90074-7

Cited by 81 publications

(19 citation statements)

References 12 publications

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“…There was a decrease in the intensity of the (002) reflection and a relative increase in the intensities of thc (103) and (105) reflections as the deposition rate increased. Thus at low dcposition rates a higher degree of preferred orientation was observed, in close agreement with previous work [25]. However.…”

Section: Crystallographic Orientationsupporting

confidence: 93%

A Morphological and Structural Study of Evaporated Cadmium Sulphide Thin Films

Ashour¹,

Gould²,

Ramadan³

1991

Phys. Stat. Sol. (a)

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The morphology of evaporated cadmium sulphide thin films is investigated using scanning electron microscopy. As‐grown films of thickness less than 30 nm exhibit protrusions which are identified with prisms developed along the c‐axis. Pinholes and cracks in the films are also observed. The structure of the deposited films is interpreted and discussed in terms of line‐profile analysis of X‐ray diffraction patterns, with a particular emphasis given to the effeets of preparation conditions on the orientation, crystallite grain size, and residual microstrain. The films are found to be of the hexagonal wurtzite structure with c‐axis of length 0.6796 nm. All the films are found to be preferentially orientated with the 〈001〉 fibre texture. The degree of preferential orientation is found to incrcase slightly with increasing film thickness, but 10 decrcase with increasing deposition rate. In general the grain size is found to increase with increasing thickness and to decrease with increasing deposition rate, while the residual microstrain shows the oppositc dependence. The optimum temperature for the substrates during deposition appears to be approximately 150°C where the grain size is a maximum and the residual microstrain a minimum.

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Section: Crystallographic Orientationsupporting

confidence: 93%

A Morphological and Structural Study of Evaporated Cadmium Sulphide Thin Films

Ashour¹,

Gould²,

Ramadan³

1991

Phys. Stat. Sol. (a)

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“…31,32 In fact, the density of grain boundary states plays a crucial role in fixing the grain boundary potential. The non-zero value of the grain boundary potential [33][34][35][36][37] and relatively high resistance of polycrystalline materials (compared to single crystals) conclusively prove manifestations of grain boundary states. It has been found that the grain boundary potential of CdS varies widely from sample to sample.…”

Section: Resultsmentioning

confidence: 94%

On the sub-band gap optical absorption in heat treated cadmium sulphide thin film deposited on glass by chemical bath deposition technique

Chattopadhyay

Karim

Roy

2013

Journal of Applied Physics

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The sub-band gap optical absorption in chemical bath deposited cadmium sulphide thin films annealed at different temperatures has been critically analyzed with special reference to Urbach relation. It has been found that the absorption co-efficient of the material in the sub-band gap region is nearly constant up to a certain critical value of the photon energy. However, as the photon energy exceeds the critical value, the absorption coefficient increases exponentially indicating the dominance of Urbach rule. The absorption coefficients in the constant absorption region and the Urbach region have been found to be sensitive to annealing temperature. A critical examination of the temperature dependence of the absorption coefficient indicates two different kinds of optical transitions to be operative in the sub-band gap region. After a careful analyses of SEM images, energy dispersive x-ray spectra, and the dc current-voltage characteristics, we conclude that the absorption spectra in the sub-band gap domain is possibly associated with optical transition processes involving deep levels and the grain boundary states of the material.

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“…1) the lattice spacing "d" has been determined and it has been found that it is in very good agreement with those of ASTM DATA (80-0006) (Table III). Predicted peaks (002) and (110) are reported as the characteristic peaks for In:CdS thin films by several workers [5][6][7] and the absence of other peaks proves the purity of the prepared thin films. From the diffraction profiles it has been found that the films are polycrystalline in nature with hexagonal structure having the preferential orientation along (002) plane.…”

Section: Structural Analysis Of In:cds Thin Filmsmentioning

confidence: 74%

“…Two basic requirements for the window material are low electrical resistivity and high optical transmittance. Even though resistivity and optical transmittance strongly depend on preparation conditions [5,6], undoped CdS thin films generally show high electrical resistivities. Thus, it is difficult to produce undoped CdS thin films with both low resistivity and high transmittance just by controlling preparation conditions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Preparation Technique on the Properties of In:CdS Thin Films

Dhanam¹,

Kavitha²,

Maheswari³

et al. 2011

Acta Phys. Pol. A

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This paper presents the results of the structural, morphological and optical analysis of In:CdS thin films prepared by chemical bath deposition and successive ionic layer adsorption and reaction techniques. X-ray diffraction patterns showed the hexagonal phase of cadmium sulfide and it has been found that the amount of atomic percentage of indium increases the intensity of the preferential orientation (002)

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The electrical properties of evaporated films of cadmium sulphide

Cited by 81 publications

References 12 publications

A Morphological and Structural Study of Evaporated Cadmium Sulphide Thin Films

A Morphological and Structural Study of Evaporated Cadmium Sulphide Thin Films

On the sub-band gap optical absorption in heat treated cadmium sulphide thin film deposited on glass by chemical bath deposition technique

Influence of Preparation Technique on the Properties of In:CdS Thin Films

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