AC conductivity and dielectric properties of Sb2S3 films

Farid, A. M.; Bekheet, A.E.

doi:10.1016/s0042-207x(00)00403-6

Cited by 66 publications

(29 citation statements)

References 21 publications

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“…It has an orthorhombic layered structure. 10,11 The values of the electronic gap of amorphous and crystalline Sb 2 S 3 thin films are 2.20 eV and 1.78 eV, respectively. 12,13 Due to the direct band gap and excellent photoconductivity of Sb 2 S 3 , it can be widely exploited in television cameras, microwave devices, and other optoelectronic devices.…”

Section: Introductionmentioning

confidence: 99%

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

El-Rahman

Darwish

Hanafy

2016

Journal of Elec Materi

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The Sb 2 S 3 bulk material was used for next-generation anode for lithium-ion batteries. Alternative current (AC) conductivity, dielectric properties and electric modulus of Sb 2 S 3 have been investigated. The measurements were carried out in the frequency range from 40 Hz to 5 MHz and temperature range from 293 K to 453 K. The direct current (DC) conductivity, r DC , shows an activated behavior and the calculated activation energy is 0.50 eV. The AC conductivity, r AC , was found to increase with the increase of temperature and frequency. The conduction mechanism of r AC was controlled by the correlated barrier hopping model. The behavior of the dielectric constant, e¢, and dielectric loss index, e¢¢, reveal that the polarization process of Sb 2 S 3 is dipolar in nature. The behavior of both e¢ and e¢¢ reveals that bulk Sb 2 S 3 has no ferroelectric or piezoelectric phase transition. The dielectric modulus, M, gives a simple method for evaluating the activation energy of the dielectric relaxation. The calculated activation energy from M is 0.045 eV.

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Section: Introductionmentioning

confidence: 99%

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

El-Rahman

Darwish

Hanafy

2016

Journal of Elec Materi

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“…Because of these useful properties, considerable efforts have been devoted to the fabrication of Sb 2 S 3 films and controlled synthesis of 1D Sb 2 S 3 nanostructures, as well as more complex assemblies. Various Sb 2 S 3 films have been fabricated by different methods, such as chemical bath deposition, [24] thermal evaporation, [25] and spray pyrolysis techniques. [26] .…”

Section: Introductionmentioning

confidence: 99%

Sb₂S₃ with Various Nanostructures: Controllable Synthesis, Formation Mechanism, and Electrochemical Performance toward Lithium Storage

Duan

Lian

et al. 2010

Chemistry A European J

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The size- and shape-controlled synthesis of Sb(2)S(3) nanostructures has been successfully realized by a facile hydrothermal route. A range of dimensional nanostructures, such as one-dimensional nanorods, two-dimensional nanowire bundles, three dimensional sheaf-like superstructures, dumbbell-shaped superstructures, and urchin-like microspheres, could be obtained through introducing different organic complex reagents or ionic liquids to the reaction system. The formation mechanisms of various Sb(2)S(3) nanostructures have been rationally proposed based on the crystal structure and the nature of the complex reagents and the ionic liquid. The effects of experimental parameters on the final product are also discussed in detail. In addition, electrochemical measurements demonstrate that the as-synthesized Sb(2)S(3) nanostructures have higher initial Li intercalation capacity and excellent cyclic performances, which indicates that the as-synthesized Sb(2)S(3) nanostructures could have potential applications in commercial batteries.

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“…In small polaron tunneling model frequency exponent s increases with temperature. In the correlated barrier hopping (CBH) model, s decreases with increasing temperature [39,40]. The observed trend of variation in s in the present investigated samples suggests that the CBH model is suitable for explaining the conduction mechanism of charge carriers in SDS doped PEDOT nanofibers system.…”

Section: Ac Conductivity Studymentioning

confidence: 65%

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

Chutia

Kumar

2015

J Polym Res

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The electrical conductivity and carrier relaxation in poly (3, 4-ethylenedioxythiophene) (PEDOT) nanofibers have been studied over a wide range of frequency and temperature by means of impedance spectroscopy. High resolution transmission electron micrographs confirm the formation of nanofibers with average diameter of 14 nm. The linear increase of imaginary permittivity with decreasing frequency in the loglog plot of ε″ versus ω is attributed to the higher contribution of dc conductivity than that of the electrode polarization. The presence of single semicircle in the complex impedance ColeCole plot indicates the presence of single charge carrier relaxation mechanism. The perfect matching of the relaxation peak in Z″ and M″ vs. frequency at different temperature confirms the presence of Debye type relaxation. From the temperature dependent behavior of frequency exponent study it is confirmed that the charge transport takes place through correlated barrier hopping mechanism. Decrease of barrier height and increase of density of states with increasing dopant concentration can be corroborated with the conductivity enhancement.

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AC conductivity and dielectric properties of Sb2S3 films

Cited by 66 publications

References 21 publications

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

Sb₂S₃ with Various Nanostructures: Controllable Synthesis, Formation Mechanism, and Electrochemical Performance toward Lithium Storage

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

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AC conductivity and dielectric properties of Sb2S3 films

Cited by 66 publications

References 21 publications

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

Sb2S3 with Various Nanostructures: Controllable Synthesis, Formation Mechanism, and Electrochemical Performance toward Lithium Storage

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

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Sb₂S₃ with Various Nanostructures: Controllable Synthesis, Formation Mechanism, and Electrochemical Performance toward Lithium Storage