Physical properties and characterization of Ag doped CdS thin films

Shah, Nazar Abbas; Nazir, Adnan; Mahmood, Waqar; Syed, Waqar Adil; Butt, Sajid Ullah; Ali, Zulfiqar; Maqsood, Asghari

doi:10.1016/j.jallcom.2011.08.081

Cited by 52 publications

(37 citation statements)

References 25 publications

(20 reference statements)

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“…where d is the thickness and T is the transmittance, m λ is the minima and M λ is the maxima value of the wavelength taken from the transmission spectrum [8]. Energy band gap behavior with respect to thickness was almost same for both CBD and CSS.…”

Section: Comparative Analysis Of Optical Properties Of Cds Thin Filmsmentioning

confidence: 99%

“…The CdS is a suitable n-type material, which can be fabricated by a variety of fabrication techniques like sol gel technique [4], close spaced sublimation (CSS), chemical bath deposition (CBD), thermal evaporation, chemical vapor deposition, molecular beam epitaxy and spray pyrolysis. Each and every deposition process provides different optical, structural, electrical and morphological properties [5][6][7][8][9][10]. First solar company has reported CdS deposited by high rate vapor transport deposition (HRVTD).…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

Rabeel¹,

Abbas²,

Basit³

et al. 2017

JAN

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Abstract. Thin films of Cadmium Sulfide (CdS) are deposited on microscope glass slides by two techniques, chemical bath deposition (CBD) and close spaced sublimation (CSS). Cadmium Sulfide thin films fabricated by both procedures are characterized by spectrophotometer, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Optical analysis of CdS thin films shows changes in transmittance, refractive Index and energy band gap by using two different techniques. XRD and SEM results show CdS thin film samples with better crystalline structure for close spaced sublimation technique and grain size is also found different for these two methods. CdS thin films fabricated by any of these two methods are good window layers with small thickness and suitable for CdTe/CdS/ITO based solar cells.

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Section: Comparative Analysis Of Optical Properties Of Cds Thin Filmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

Rabeel¹,

Abbas²,

Basit³

et al. 2017

JAN

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“…In the last decades, the high potentialities of Cd 1−x Zn x S films do not cease to be proved in many useful devices [1][2][3]. This is principally due to their utility as window materials in heterojunction solar cells with a p-type absorber such as CuInSe 2 , CuIn x Ga 1-x Se 2 or CuSnS z Se 1-z [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…This is principally due to their utility as window materials in heterojunction solar cells with a p-type absorber such as CuInSe 2 , CuIn x Ga 1-x Se 2 or CuSnS z Se 1-z [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Energy Levels Splitting Calculated for the Heavy and Light Holes in a Cd<sub>1-x</sub>Zn<sub>x</sub>S Double Quantum Dot

Khéfacha¹

2017

NANO

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Abstract:This work reports on a theoretical investigation of a double Cd 1-x Zn x S quantum dot embedded in an insulating material.The quantum dots are assumed to have a flattened cylindrical geometry with a finite barrier at the boundary.The energy levels splitting has been computed, using the tight binding approximation, in the case of the heavy and light holes, as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that, for the light holes, the coupling is maximum when x=0.8. Moreover, it has been demonstrated the strong localization character of the heavy holes in this nanostructure.

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“…Number of researchers worked on the doping of cadmium selenide [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and also on photoconductivity, electrical and optical properties of Ag doped CdSe thin films obtained using solution growth, thermal evaporation and ion exchange method [5][6][7][8][9][10][11][12][13][14][15]. CdSe is basically n-type material in bulk as well as in thin film form having a high resistance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ag in CdSe thin films prepared using thermal evaporation

Santhosh

Bangera

Shivakumar³

2017

Физика И Техника Полупроводников

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It has been a general practice to dope thin films with suitable dopants to modify the properties of the films to make them more suitable for potential applications. When the dopant concentrations are low, they do not normally affect the structure and morphology of the films. However, it may lead to drastic changes in electronic properties of the films. This might result from the dopant getting incorporated into the lattice of the material of the films. Cadmium selenide is an important compound semiconductor material with an attractive energy band gap. The present work relates to an attempt made to dope CdSe thin films with silver. CdSe : Ag (1 to 5%) thin films were deposited on glass substrates at an optimized substrate temperature of 453 K using thermal evaporation technique. The grown films were analyzed using X-ray diffraction, scanning electron microscopy (SEM), energy dispersive analysis of X-ray (EDX) techniques. It is observed that undoped CdSe thin films and CdSe : Ag films have hexagonal structure. The grain size was found to increase marginally with an increase in the Ag concentration. The optical band gap of the films determined by optical transmission measurements agree with that of CdSe. Electrical conductivity is observed to increase from 10 −4 to 3.66 ( · cm) −1 on addition of silver. The variation of resistance with temperature indicates that the prepared films consist of CdSe and Ag existing as two separate phases coexisting and contributing individually to the resistivity of the films.

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Physical properties and characterization of Ag doped CdS thin films

Cited by 52 publications

References 25 publications

Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

The Energy Levels Splitting Calculated for the Heavy and Light Holes in a Cd<sub>1-x</sub>Zn<sub>x</sub>S Double Quantum Dot

Effect of Ag in CdSe thin films prepared using thermal evaporation

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Physical properties and characterization of Ag doped CdS thin films

Cited by 52 publications

References 25 publications

Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

Comparative Study of CdS Nano Films Deposited by Chemical Bath and Close Spaced Sublimation Techniques

The Energy Levels Splitting Calculated for the Heavy and Light Holes in a Cd&lt;sub&gt;1-x&lt;/sub&gt;Zn&lt;sub&gt;x&lt;/sub&gt;S Double Quantum Dot

Effect of Ag in CdSe thin films prepared using thermal evaporation

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The Energy Levels Splitting Calculated for the Heavy and Light Holes in a Cd<sub>1-x</sub>Zn<sub>x</sub>S Double Quantum Dot