Electrochemical characterization of multilayered CdTe/ PSS films prepared by electrostatic self-assembly method

Mohammad Mahbub Rabbani; Jeong Hyun Yeum; Jungsoo Kim; Dae Geun Nam; Weontae Oh

doi:10.4313/TEEM.2014.15.5.257

Electrochemical characterization of multilayered CdTe/ PSS films prepared by electrostatic self-assembly method

Mohammad Mahbub Rabbani, Jeong Hyun Yeum, Jungsoo Kim, Dae Geun Nam, Weontae Oh

Department of Biofibers and Biomaterials Science

Research output: Contribution to journal › Article › peer-review

Abstract

Multilayered CdTe/PSS films were prepared by the electrostatic self-assembly method in an aqueous medium. Positively-charged cadmium telluride (CdTe) nanoparticles and anionic polyelectrolyte, poly (sodium 4-styrene sulfonate) (PSS) were assembled alternately in order to build up a multilayered film structure. A linear proportion of absorbance to the number of bilayers suggests that an equal amount of CdTe was adsorbed after each dipping cycle, which resulted in the buildup of a homogenous film. The binding energies of elements (Cd and Te) in multilayered CdTe/PSS film shifted from those of the CdTe nanoparticles in the pure state. This result indicates that the interfacial electron densities were redistributed by the strong electrostatic interaction between the oppositely-charged CdTe and PSS. Electrochemical properties of the multilayered CdTe/PSS films were studied in detail by cyclic voltammetry (CV).

Original language	English
Pages (from-to)	257-261
Number of pages	5
Journal	Transactions on Electrical and Electronic Materials
Volume	15
Issue number	5
DOIs	https://doi.org/10.4313/TEEM.2014.15.5.257
State	Published - 1 Oct 2014

Keywords

CdTe
Cyclic voltammetry
Self-assembly
Thin film

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title = "Electrochemical characterization of multilayered CdTe/ PSS films prepared by electrostatic self-assembly method",

abstract = "Multilayered CdTe/PSS films were prepared by the electrostatic self-assembly method in an aqueous medium. Positively-charged cadmium telluride (CdTe) nanoparticles and anionic polyelectrolyte, poly (sodium 4-styrene sulfonate) (PSS) were assembled alternately in order to build up a multilayered film structure. A linear proportion of absorbance to the number of bilayers suggests that an equal amount of CdTe was adsorbed after each dipping cycle, which resulted in the buildup of a homogenous film. The binding energies of elements (Cd and Te) in multilayered CdTe/PSS film shifted from those of the CdTe nanoparticles in the pure state. This result indicates that the interfacial electron densities were redistributed by the strong electrostatic interaction between the oppositely-charged CdTe and PSS. Electrochemical properties of the multilayered CdTe/PSS films were studied in detail by cyclic voltammetry (CV).",

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AU - Rabbani, Mohammad Mahbub

AU - Yeum, Jeong Hyun

AU - Kim, Jungsoo

AU - Nam, Dae Geun

AU - Oh, Weontae

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Multilayered CdTe/PSS films were prepared by the electrostatic self-assembly method in an aqueous medium. Positively-charged cadmium telluride (CdTe) nanoparticles and anionic polyelectrolyte, poly (sodium 4-styrene sulfonate) (PSS) were assembled alternately in order to build up a multilayered film structure. A linear proportion of absorbance to the number of bilayers suggests that an equal amount of CdTe was adsorbed after each dipping cycle, which resulted in the buildup of a homogenous film. The binding energies of elements (Cd and Te) in multilayered CdTe/PSS film shifted from those of the CdTe nanoparticles in the pure state. This result indicates that the interfacial electron densities were redistributed by the strong electrostatic interaction between the oppositely-charged CdTe and PSS. Electrochemical properties of the multilayered CdTe/PSS films were studied in detail by cyclic voltammetry (CV).

AB - Multilayered CdTe/PSS films were prepared by the electrostatic self-assembly method in an aqueous medium. Positively-charged cadmium telluride (CdTe) nanoparticles and anionic polyelectrolyte, poly (sodium 4-styrene sulfonate) (PSS) were assembled alternately in order to build up a multilayered film structure. A linear proportion of absorbance to the number of bilayers suggests that an equal amount of CdTe was adsorbed after each dipping cycle, which resulted in the buildup of a homogenous film. The binding energies of elements (Cd and Te) in multilayered CdTe/PSS film shifted from those of the CdTe nanoparticles in the pure state. This result indicates that the interfacial electron densities were redistributed by the strong electrostatic interaction between the oppositely-charged CdTe and PSS. Electrochemical properties of the multilayered CdTe/PSS films were studied in detail by cyclic voltammetry (CV).

KW - CdTe

KW - Cyclic voltammetry

KW - Self-assembly

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Electrochemical characterization of multilayered CdTe/ PSS films prepared by electrostatic self-assembly method

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Keywords

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