Photoluminescence studies on CdS-CBD films grown by using different S/Cd ratios

Aguilar‐Hernández, J.; Sastré-Hernández, J.; Ximello-Quiebras, N.; Mendoza-Pérez, R.; Vigil‐Galán, O.; Contreras‐Puente, G.; Cárdenas-García, M.

doi:10.1016/j.tsf.2005.11.082

Cited by 28 publications

(19 citation statements)

References 7 publications

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“…As the deposition time increases to over 90 min, the PL intensity from the band-to-band transition significantly increases. The increase of the I bb /I vs is caused by the improvement of the crystalline quality of the CBD CdS thin films [17].…”

Section: Resultsmentioning

confidence: 99%

Photoluminescence of Nanocrystalline CdS Thin Films Prepared by Chemical Bath Deposition

Park¹

2010

Transactions on Electrical and Electronic Materials

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Nanocrystalline cadmium sulfide (CdS) thin films were prepared using chemical bath deposition in a solution bath containing CdSO 4 , SC(NH 2 ) 2 , and NH 4 OH. The CdS thin films were investigated using X-ray diffraction (XRD), photoluminescence (PL), and Fourier transform infrared spectroscopy (FTIR). The as-deposited CdS thin film prepared at 80°C for 60 min had a cubic phase with homogeneous and small grains. In the PL spectrum of the 2,900 Å-thick CdS thin film, the broad red band around 1.7 eV and the broad high-energy band around 2.7 eV are attributed to the S vacancy and the band-to-band transition, respectively. As the deposition time increases to over 90 min, the PL intensity from the band-to-band transition significantly increases. The temperature dependence of the PL intensity for the CdS thin films was studied from 16 to 300 K. The E A and E B activation energies are obtained by fitting the temperature dependence of the PL intensity. The E A and E B are caused by the deep trap and shallow surface traps, respectively. From the FTIR analysis of the CdS thin films, a broad absorption band of the OH stretching vibration in the range 3,000-3,600 cm -1 and the peak of the CN stretching vibration at 2,000 cm -1 were found.

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Section: Resultsmentioning

confidence: 99%

Photoluminescence of Nanocrystalline CdS Thin Films Prepared by Chemical Bath Deposition

Park¹

2010

Transactions on Electrical and Electronic Materials

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“…5,6 Various methods have been used to produce CdS films such as vacuum thermal evaporation, 7 chemical vapor deposition, 8 solÀgel chemical solution growth, 9 ultrasonic spray pyrolysis (USP), 10 rf sputtering, 11 screen printingÀsintering technique, 6 and chemical bath deposition (CBD) 12,13 for electrooptical device applications. Among these deposition methods, CBD technique is one of the least expensive and simplest methods, which makes it very attractive to obtain reproducible and uniform CdS films.…”

Section: Introductionmentioning

confidence: 99%

Humidity Sensing Properties of CdS Nanoparticles Synthesized by Chemical Bath Deposition Method

Demir

Okur

Seker

et al. 2011

Ind. Eng. Chem. Res.

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Thin films of CdS nanoparticles were synthesized by the chemical bath deposition (CBD) technique to investigate humidity response characteristics. The morphology and the crystal structure of CdS thin films were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The quartz crystal microbalance (QCM) technique was used to measure the water vapor adsorption and desorption rates of CdS thin films. The dynamic Langmuir model was used to analyze the kinetics of the moisture adsorption and desorption process under relative humidity (RH) between 17 and 85% RH. Our results indicate that CdS thin films have a great affinity to humidity at room temperature.

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“…Over the years, group II-VI semiconducting compounds have enjoyed a continuous interest by many research groups around the world due to a wide array of unque applications [1][2][3][4]. Generally these types of compounds are extensively used in solid-state physics especially in optoelectronics, photodetectors, low-voltage electroluminescent cathodes, heterojunction solar cells and photovoltaic cells with different polycrystalline absorber materials [5][6][7][8][9][10][11]. Within these classes, Cd-Zn sulphide based compounds have shown unique attraction due to their easy tuning of energy gap and lattice parameters [12,13].…”

Section: Introductionmentioning

confidence: 99%

Understanding the shrinkage of optical absorption edges of nanostructured Cd-Zn sulphide films for photothermal applications

Hossain

Kabir

Rahman

et al. 2017

Applied Surface Science

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Highlights  Cd-Zn sulphide films synthesized via chemical bath deposition technique were investigated for photovoltaic and optoelectronic applications.  XRD studies show that Cd-Zn sulphide films are composed of nanocrystalline structure surrounded by the amorphous grain boundaries.  Nanocrystalline structures of the films were confirmed by the SEM.  The band gap of these films is a combination of composition and size  EU and σ studies ascribed the shrinkage of the solar absorption edges around the optical band-gaps.

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Photoluminescence studies on CdS-CBD films grown by using different S/Cd ratios

Cited by 28 publications

References 7 publications

Photoluminescence of Nanocrystalline CdS Thin Films Prepared by Chemical Bath Deposition

Photoluminescence of Nanocrystalline CdS Thin Films Prepared by Chemical Bath Deposition

Humidity Sensing Properties of CdS Nanoparticles Synthesized by Chemical Bath Deposition Method

Understanding the shrinkage of optical absorption edges of nanostructured Cd-Zn sulphide films for photothermal applications

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