scholarly journals Structure and transport properties of triple-conducting BaxSr1−xTi1−yFeyO3−δ oxides

RSC Advances ◽  
2021 ◽  
Vol 11 (32) ◽  
pp. 19570-19578
Author(s):  
T. Miruszewski ◽  
K. Dzierzgowski ◽  
P. Winiarz ◽  
D. Jaworski ◽  
K. Wiciak-Pawłowska ◽  
...  

BaxSr1−xTi1−yFeyO3−δ-based perovskite materials with different barium and iron contents are reported as triple conducting oxides (TCOs), which may conduct three charge carriers: oxygen ions, protons and electrons/holes.

1997 ◽  
Vol 56 (21) ◽  
pp. 14149-14156 ◽  
Author(s):  
P. Fournier ◽  
X. Jiang ◽  
W. Jiang ◽  
S. N. Mao ◽  
T. Venkatesan ◽  
...  

1995 ◽  
Vol 393 ◽  
Author(s):  
Joyce Albritton Thomas ◽  
Grant M. Kloster ◽  
D. Shriver ◽  
C. R. Kannewurf

ABSTRACTRecently, there has been considerable interest in advanced materials and processing techniques for practical applications. V2O5 xerogels have generated much attention because they are layered materials that undergo reversible redox intercalation with lithium. The sol-gel process has been used to intercalate V2O5 xerogels with the polymer electrolyte, oxymethylene linked poly(ethylene oxide) - lithium triflate [(a-PEO)n(LiCF3SO3)]. The resulting nanocomposite is a mixed ionic-electronic conductor in which the ionic charge carriers in the polymer electrolyte are in intimate contact with the electronic charge carriers in the V205 xerogel. Variable-temperature electronic conductivity and thermoelectric power measurements have been performed to examine the charge transport properties.


2020 ◽  
Vol 117 (4) ◽  
pp. 041904 ◽  
Author(s):  
Oriane Baussens ◽  
Loli Maturana ◽  
Smaïl Amari ◽  
Julien Zaccaro ◽  
Jean-Marie Verilhac ◽  
...  

2009 ◽  
Vol 180 (2-3) ◽  
pp. 160-167 ◽  
Author(s):  
Maria A. Azimova ◽  
Steven McIntosh

2016 ◽  
Vol 478 ◽  
pp. 126-129 ◽  
Author(s):  
J. Važgėla ◽  
K. Genevičius ◽  
G. Juška

2020 ◽  
Vol 6 (37) ◽  
pp. eabb6393
Author(s):  
Artem Musiienko ◽  
Jindřich Pipek ◽  
Petr Praus ◽  
Mykola Brynza ◽  
Eduard Belas ◽  
...  

Halide perovskites have undergone remarkable developments as highly efficient optoelectronic materials for a variety of applications. Several studies indicated the critical role of defects on the performance of perovskite devices. However, the parameters of defects and their interplay with free charge carriers remain unclear. In this study, we explored the dynamics of free holes in methylammonium lead tribromide (MAPbBr3) single crystals using the time-of-flight (ToF) current spectroscopy. By combining ToF spectroscopy and Monte Carlo simulation, three energy states were detected in the bandgap of MAPbBr3. In addition, we found the trapping and detrapping rates of free holes ranging from a few microseconds to hundreds of microseconds. Contrary to previous studies, we revealed a strong detrapping activity of traps. We showed that these traps substantially affect the transport properties of MAPbBr3, including mobility and mobility-lifetime product. Our results provide an insight on charge transport properties of perovskite semiconductors.


Sign in / Sign up

Export Citation Format

Share Document