Repozytorium
Wyszukaj
Kolekcje
Inne
Phase transitions and properties of 0D hybrid iodoantimonate(III) and iodobismuthate(III) semiconducting ferroics: [C(NH2)3]3Bi2I9 and [C(NH2)3]3Sb2I9.
Autorzy
Rok wydania
2021
Czasopismo
Journal of Molecular Structure
Numer woluminu
1226
Strony
129387/1-129387/10
DOI
10.1016/j.molstruc.2020.129387
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The guanidinium derivatives [C(NH2)3]3Bi2I9 (GBI) and [C(NH2)3]3Sb2I9 (GSI) are promising compounds from the viewpoint of their electrooptical and semiconducting properties. In this paper we present the optical, dielectric, UV–Vis, Raman and 1H NMR (spin-lattice relaxation time, T1, and second moment, M2) results of studies on GBI and GSI. The temperature and frequency dependent ac conductivity of GBI and GSI has been analyzed in terms of the Jonscher relationship. The parameters for the ac conductivity have been estimated. The UV–Vis spectra have been analyzed for GBI and GSI and the respective calculations regarding the band gap have been carried out. GBI and GSI reveal the semiconducting properties in their high temperature phases (σac in the range 10–5 – 10–7 S/m). 1H NMR studies indicate the key role of the guanidium cation dynamics in the phase transitions mechanisms.
Słowa kluczowe
Organic-inorganic hybrid composites, Guanidine, Materials, Semiconductivity, Phase transition
Adres publiczny
http://dx.doi.org/10.1016/j.molstruc.2020.129387
Strona internetowa wydawcy
Podobne publikacje
Tris(allylammonium) hexabromobismuthate(III) - crystal structure, phase transitions and thermal, dielectric, vibrational and1H NMR properties over a range of temperatures.
Płowaś Iwona, Białońska Agata, Bator Grażyna , Jakubas Ryszard, Medycki Wojciech, Baran Jan
An inverse ferroelastic type phase transition and electric properties in bis(ethylenediammonium)tetrachlorozincate chloride crystal
Ingram Adam, Czapla Zbigniew, Górecki Czesław, Kinzhybalo Vasyl, Kostrzewa Marek, Szklarz Przemysław
Polymorphism and Red Photoluminescence Emission from 5s2 Electron Pairs of Sb(III) in a New One-Dimensional Organic–Inorganic Hybrid Based on Methylhydrazine: MHy2SbI5
Rowińska Magdalena, Stefańska Dagmara, Bednarchuk Tamara J., Zaręba Jan K., Jakubas Ryszard, Gągor Anna