Electrical and optical properties of chemically deposited SnO2:I coatings

Abass, A. K.; Bakr, H.; Jassim, Salah Abdul-Jabbar; Fahad, Tarek A.

doi:10.1016/0165-1633(88)90002-0

Cited by 11 publications

(4 citation statements)

References 20 publications

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“…Moreover, few reports have also demonstrated the effects of chlorine (Cl), bromine (Br), and I doping in SnO 2 . Abass et al [17][18][19], using several experiments with emphasis on optical and electrical properties, found pronounced improvements in these properties by halogen doping. Agashe et al [20] also studied the electrical properties of sprayed deposited SnO 2 films and showed that when replacing F dopants with Br, conductivity was reduced.…”

Section: Introductionmentioning

confidence: 99%

Defect Processes in Halogen Doped SnO2

et al. 2021

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In the present study, we performed density functional theory calculations (DFT) to investigate structural changes and their impact on the electronic properties in halogen (F, Cl, Br, and I) doped tin oxide (SnO2). We performed calculations for atoms intercalated either at interstitial or substitutional positions and then calculated the electronic structure and the optical properties of the doped SnO2. In all cases, a reduction in the bandgap value was evident, while gap states were also formed. Furthermore, when we insert these dopants in interstitial and substitutional positions, they all constitute a single acceptor and donor, respectively. This can also be seen in the density of states through the formation of gap states just above the valence band or below the conduction band, respectively. These gap states may contribute to significant changes in the optical and electronic properties of SnO2, thus affecting the metal oxide’s suitability for photovoltaics and photocatalytic devices. In particular, we found that iodine (I) doping of SnO2 induces a high dielectric constant while also reducing the oxide’s bandgap, making it more efficient for light-harvesting applications.

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Section: Introductionmentioning

confidence: 99%

Defect Processes in Halogen Doped SnO2

et al. 2021

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“…These properties allow them to be excellent candidates as heat mirrors and for optoelectronic device applications. To further improve their performance, the films are doped with a higher valence cation [1] or a lower valence anion [2]. Tin oxide (SnO2) films are promising for solar thermal energy conservation due to their environmental stability, and anti acid and base corrosion.…”

Section: Introductionmentioning

confidence: 99%

Tracing the Incorporated Fluorine in Spray Deposited Nanocrystalline Tin Oxide Thin Film

2010

Egyptian Journal of Solids

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Pure and fluorine incorporated tin oxide thin films are synthesized using a costeffective spray pyrolysis technique. The dependence of the morphology, structure, optical properties, and sheet resistance of the prepared SnO2: F films, on the concentration of fluorine in spray solution are reported. The 2D & 3D AFM images show observable changes in grain size and shape. The XRD patterns are considered as a good monitor for fluorine in SnO2 lattice. The crystallite size is found to be in the range 18 to 40 nm as calculated from XRD patterns. The energy gap of the pure sample is larger than that reported for samples having larger crystallite size, in micron and submicron ranges. The plasma frequencies ωp of the F incorporated samples exhibit blue shift due to increase in carrier concentration. The electron concentration, mobility, mean free path and Fermi energy are calculated from the experimentally determined p. Sheet resistance is measured and correlated with the reflectance at  = 2500 nm. The figure of merit and performance coefficient are estimated. It is found that prepared SnO2: F could be considered as a promising candidate for solar energy applications and optoelectronic devices.

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“…Extensive research work has been performed on SnO 2 coatings because of the wide range of their applicability as conductive electrodes for solar cells, heat mirrors, thin film resistors, gas sensors and so on [1]. The physical properties of these films are very sensitive to dopants and can be improved by cation doping (Sb, P) [2,3] as well as anion doping (F, Cl, Br and I) [4][5][6][7]. SnO 2 films doped with Sb and F have been studied in detail because these dopants have considerably improved the electro-optical properties of these films.…”

Section: Introductionmentioning

confidence: 99%

“…One can expect that these studies will reveal the importance of the electronegativity and ionic size of a dopant in affecting the physical properties of a host lattice. Abass et al [5][6][7] have studied the effect of halogen doping on optical properties of SnO 2 films. Nonetheless, systematic investigations on the growth mechanism and structural/electrical properties of Cl-, Br-and I-doped SnO 2 films are needed.…”

Section: Introductionmentioning

confidence: 99%

The effect of F, Cl and Br doping on the growth and structural properties of sprayed films

Agashe

Major

1996

J. Phys. D: Appl. Phys.

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The effect of halogen (F, Cl and Br) doping on growth kinetics and structural properties of spray pyrolytically deposited tin dioxide films was studied in detail. The strengths of the halo-acids and hence the electronegativities of the halogens played an important role in governing the reaction processes which controlled the growth kinetics of the films. F doping affected the growth rate of a film the least, whereas Cl and Br doping reduced the growth rate to an increasing extent. The structural properties were less affected by doping. The films were polycrystalline and remained highly textured along the [200] direction irrespective of the dopant as well as of the doping level. The grain size remained essentially the same regardless of the dopant.

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Electrical and optical properties of chemically deposited SnO2:I coatings

Cited by 11 publications

References 20 publications

Defect Processes in Halogen Doped SnO2

Defect Processes in Halogen Doped SnO2

Tracing the Incorporated Fluorine in Spray Deposited Nanocrystalline Tin Oxide Thin Film

The effect of F, Cl and Br doping on the growth and structural properties of sprayed films

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