Photoconductivity of CdTe films

Chakrabarti, R.; Dutta, Joydeep; Maity, Arjun; Chaudhuri, S.; Pal, A.K.

doi:10.1016/s0040-6090(96)08801-3

Cited by 20 publications

(16 citation statements)

References 13 publications

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“…The main reflections of the samples are the same and can be indexed according to fcc CdTe lattice. The data analysis gave the lattice constant as 6.395 Å for the as-deposited and CdCl 2 -treated samples, which agreed with the reported value of 6.410 Å of lattice constant 13,14 (ASTM Cards 15-0770, 75-2086). Two values of the lattice constant are attributed to the re-crystallized lattice.…”

Section: Structural Propertiessupporting

confidence: 87%

CdCl2-treated CdTe thin films deposited by the close spaced sublimation technique

et al. 2008

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Cadmium telluride thin films were prepared by the close spaced sublimation (CSS) technique, using CdTe powder as evaporant and were submitted to a chemical treatment at 25°C in a saturated CdCl 2 solution (2.08 g/100 mL methanol), followed by heat treatment under vacuum $10 -3 mbar at 400°C for 30 min. The effect of chemical and thermal treatments on the crystallographic, morphological, optical, and electrical properties were studied through XRD, scanning electron microscope (SEM), spectrophotometry, and dc electrical resistivity measurements, respectively. The studies revealed that the CdTe grows in face centered cubic phase and that post-deposition treatment affects the morphology as well as the crystallographic properties. The effect on the morphology is stronger. Increase of the grain size was observed in the samples treated thermally. The electrical resistivity drops by a factor of 20 in CdCl 2 -immersed and heated samples.

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Section: Structural Propertiessupporting

confidence: 87%

CdCl2-treated CdTe thin films deposited by the close spaced sublimation technique

et al. 2008

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“…The values of these parameters were chosen from the known data [7][8][9][10][11][12][13][14][15] and optimized experimentally. The deposition process was conducted in the high vacuum ($10 À7 Torr).…”

Section: Resultsmentioning

confidence: 99%

Influence of substrate materials on the properties of CdTe thin films grown by hot-wall epitaxy

Bilevych

Soshnikov

Darchuk

et al. 2005

Journal of Crystal Growth

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“…Many other devices in the fields of electronics, optics, and infrared are also fabricated by using CdS [1][2][3]. The CdS is a suitable n-type material, 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.…”

Section: Fabrication Of Cds Thin Film By Chemical Bath Deposition (Cbmentioning

confidence: 99%

“…Major issue for the CdTe PV modules is the availability of tellurium. Actually, tellurium is an extremely rare element (1)(2)(3)(4)(5) parts per billion in the earth's crust. Manufacturing of CdTe PV solar panels at large-commercial scale will cause depletion of tellurium [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of CdCl2 Treatment on Physical Properties of CdTe/CdS Thin Film Solar Cell

Shah¹,

Rabeel²,

Abbas³

et al. 2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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We report CdTe, CdS, and ITO thin films on glass substrates for solar cell fabrication by closed space sublimation and chemical bath deposition. CdTe and CdS thin films were sublimated to chemical treatment at 25°C in a saturated CdCl 2 solution (1.04 g/100 ml methanol) and heat treated at 400°C for 30 minutes. Indium tin oxide and tellurium films were analyzed by spectrophotometer and scanning electron microscopy. It has been observed that solar cell performance can be improved by depositing a CdCl 2 layer on the CdTe/CdS layers. The optical, structural, and morphological changes of CdTe and CdS surfaces on CdTe/CdS/ITO/glass solar cells due to CdCl 2 solution treatment followed by annealing for 400°C were studied. Optical analysis showed about 15% decrease in transmittance after CdCl 2 heat treatment in case of CdTe thin film, whereas CdS thin film demonstrated an increase of about 10-15% transmittance after CdCl 2 heat treatment. Similarly, a decrease in band gap values was found for both CdTe and CdS thin films after CdCl 2 heat treatment. XRD and SEM results of CdCl 2 heat-treated CdTe and CdS samples showed recrystallization, reorientation, and progressive increase in grain size. The grain sizes of CdTe and CdS samples demonstrated an increase of about 0.2 µm.

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Photoconductivity of CdTe films

Cited by 20 publications

References 13 publications

CdCl2-treated CdTe thin films deposited by the close spaced sublimation technique

CdCl2-treated CdTe thin films deposited by the close spaced sublimation technique

Influence of substrate materials on the properties of CdTe thin films grown by hot-wall epitaxy

Effects of CdCl2 Treatment on Physical Properties of CdTe/CdS Thin Film Solar Cell

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