Semiconducting mixed valence sulfido (selenido) ferrates : : optical, dielectric, and electrochemical impedance properties
Abstract: The ternary potassium sulfido and selenido ferrates K9[Fe2S(e)7] were synthesized as pure phases through a facile and straightforward solid-state method. The compounds crystalize isotypic as has been reported previously. UV-visible measurements indicate semiconductivity, showing direct optical band gaps with energies of 1.91 eV for the sulfido and 1.72 eV for the selenido ferrate. Investigations of dielectric and impedance properties provide their dielectric constants in the range of 60 to 74 at room temperature at a frequency of 1 kHz, as well as ionic conductivity values in the range of 2.08 ⋅ 10−5 and 2.61 ⋅ 10−5 mS cm−1. Both, the dielectric constants and the calculated ionic conductivity of the selenido ferrate are higher compared to the sulfido ferrate, corresponding to the larger unit cell volume and increased bond lengths in the selenido ferrates. The dielectric constants are comparably higher than the reference material of SiO2, which might introduce them for dielectric applications
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Anmerkungen
-
European Journal of Inorganic Chemistry. - 27, 36 (2024) , e202400522, ISSN: 1099-0682
- Ereignis
-
Veröffentlichung
- (wo)
-
Freiburg
- (wer)
-
Universität
- (wann)
-
2025
- Urheber
- DOI
-
10.1002/ejic.202400522
- URN
-
urn:nbn:de:bsz:25-freidok-2623604
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:36 MESZ
Datenpartner
Dieses Objekt wird bereitgestellt von:
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Reza Ghazanfari, Mohammad
- Janus, Lara
- Ramadan, Islam
- Tallu, Mirko
- Dehnen, Stefanie
- Thiele, Günther
- Universität
Entstanden
- 2025
Ähnliche Objekte (12)
Semiconducting Mixed Valence Sulfido (Selenido) Ferrates: Optical, Dielectric, and Electrochemical Impedance Properties
Electrochemical doping of semiconducting polymer films with controlled morphologies
Influence of morphology on electrochemical redox processes in semiconducting polymers
A single n-type semiconducting polymer-based photo-electrochemical transistor
Direct CVD Growth of Graphene on Technologically Important Dielectric and Semiconducting Substrates
On the Integration of Dielectrometry into Electrochemical Impedance Spectroscopy to Obtain Characteristic Properties of a Dielectric Thin Film
Extremely low effective impedance in stratified graphene-dielectric metamaterials
Performance of high impedance resonators in dirty dielectric environments
Stretchable Redox‐Active Semiconducting Polymers for High‐Performance Organic Electrochemical Transistors
Ambipolar inverters with natural origin organic materials as gate dielectric and semiconducting layer
Liquid-liquid interface investigations using electrochemical impedance spectroscopy
Simualtion of electrochemical systems by analyzing impedance spectra
Semiconducting Mixed Valence Sulfido (Selenido) Ferrates: Optical, Dielectric, and Electrochemical Impedance Properties
Electrochemical doping of semiconducting polymer films with controlled morphologies
Influence of morphology on electrochemical redox processes in semiconducting polymers
A single n-type semiconducting polymer-based photo-electrochemical transistor
Direct CVD Growth of Graphene on Technologically Important Dielectric and Semiconducting Substrates
On the Integration of Dielectrometry into Electrochemical Impedance Spectroscopy to Obtain Characteristic Properties of a Dielectric Thin Film
Extremely low effective impedance in stratified graphene-dielectric metamaterials
Performance of high impedance resonators in dirty dielectric environments
Stretchable Redox‐Active Semiconducting Polymers for High‐Performance Organic Electrochemical Transistors
Ambipolar inverters with natural origin organic materials as gate dielectric and semiconducting layer
Liquid-liquid interface investigations using electrochemical impedance spectroscopy
Simualtion of electrochemical systems by analyzing impedance spectra
Semiconducting Mixed Valence Sulfido (Selenido) Ferrates: Optical, Dielectric, and Electrochemical Impedance Properties
Electrochemical doping of semiconducting polymer films with controlled morphologies
Influence of morphology on electrochemical redox processes in semiconducting polymers
A single n-type semiconducting polymer-based photo-electrochemical transistor
Direct CVD Growth of Graphene on Technologically Important Dielectric and Semiconducting Substrates
On the Integration of Dielectrometry into Electrochemical Impedance Spectroscopy to Obtain Characteristic Properties of a Dielectric Thin Film
Extremely low effective impedance in stratified graphene-dielectric metamaterials
Performance of high impedance resonators in dirty dielectric environments
Stretchable Redox‐Active Semiconducting Polymers for High‐Performance Organic Electrochemical Transistors
Ambipolar inverters with natural origin organic materials as gate dielectric and semiconducting layer
Liquid-liquid interface investigations using electrochemical impedance spectroscopy