Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca-bentonite

Küçükçelebi, Hayreddin; Durmuş, Haziret; Deryal, Abdullah; Taşer, Mehmet; Karakaya, Necati

doi:10.1016/j.clay.2012.04.007

Applied Clay Science

2012

DOI: 10.1016/j.clay.2012.04.007

|View full text |Cite

Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca-bentonite

Hayreddin Küçükçelebi¹,

Haziret Durmuş²,

Abdullah Deryal³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2015

2023

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 8 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relaxation time, τ, is defined asin which τ 0 is the relaxation time at high temperatures, E A the activation energy, and T 0 the temperature at which the relaxation time could be considered as “infinitely slow”. 32,33…”

mentioning

confidence: 99%

Charge Carriers Are Not Affected by the Relatively Slow-Rotating Methylammonium Cations in Lead Halide Perovskite Thin Films

Caselli

Fischer

Meggiolaro

et al. 2019

J. Phys. Chem. Lett.

View full text Add to dashboard Cite

Recently, several studies have investigated dielectric properties as a possible origin of the exceptional optoelectronic properties of metal halide perovskites (MHPs). In this study we investigated the temperature-dependent dielectric behavior of different MHP films at different frequencies. In the gigahertz regime, dielectric losses in methylammonium-based samples are dominated by the rotational dynamics of the organic cation. Upon increasing the temperature from 160 to 300 K, the rotational relaxation time, τ, decreases from 400 (200) to 6 (1) ps for MAPb-I3 (-Br3). By contrast, we found negligible temperature-dependent variations in τ for a mixed cation/mixed halide FA0.85MA0.15Pb(I0.85Br0.15)3. From temperature-dependent time-resolved microwave conductance measurements we conclude that the dipolar reorientation of the MA cation does not affect charge carrier mobility and lifetime in MHPs. Therefore, charge carriers do not feel the relatively slow-moving MA cations, despite their great impact on the dielectric constants.

show abstract

mentioning

confidence: 99%

Charge Carriers Are Not Affected by the Relatively Slow-Rotating Methylammonium Cations in Lead Halide Perovskite Thin Films

Caselli

Fischer

Meggiolaro

et al. 2019

J. Phys. Chem. Lett.

View full text Add to dashboard Cite

show abstract

Bentonite-derived materials preferably with nanocarbon incorporation exhibiting exceptionally high dielectric loss at relatively low electrical conductivity

Delixiati

Chung

2015

J Mater Sci

View full text Add to dashboard Cite

Nitrate-intercalated Mg 1−x Al x -Layered Double Hydroxides with different layer charges ( x ): Preparation, characterization, and study by impedance spectroscopy

Lahkale

Elhatimi

Sadik

et al. 2018

Applied Clay Science

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca-bentonite

Cited by 8 publications

References 19 publications

Charge Carriers Are Not Affected by the Relatively Slow-Rotating Methylammonium Cations in Lead Halide Perovskite Thin Films

Charge Carriers Are Not Affected by the Relatively Slow-Rotating Methylammonium Cations in Lead Halide Perovskite Thin Films

Bentonite-derived materials preferably with nanocarbon incorporation exhibiting exceptionally high dielectric loss at relatively low electrical conductivity

Nitrate-intercalated Mg 1−x Al x -Layered Double Hydroxides with different layer charges ( x ): Preparation, characterization, and study by impedance spectroscopy

Contact Info

Product

Resources

About