scholarly journals Electrochemical and Electronic Charge Transport Properties of Ni-Doped LiMn2O4 Spinel Obtained from Polyol-Mediated Synthesis

Materials ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 806 ◽  
Author(s):  
Shuo Yang ◽  
Dirk Schmidt ◽  
Abhishek Khetan ◽  
Felix Schrader ◽  
Simon Jakobi ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Electronic Charge ◽  
Limn2o4 Spinel

Charge Transport Properties of a Partially Reduced V2O5 Xerogel Intercalated with a Polymer Electrolyte

1995 ◽  
Vol 393 ◽  
Author(s):  
Joyce Albritton Thomas ◽  
Grant M. Kloster ◽  
D. Shriver ◽  
C. R. Kannewurf
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Polymer Electrolyte ◽  
Variable Temperature ◽  
Sol Gel ◽  
Electronic Conductivity ◽  
Charge Carriers ◽  
Electronic Charge ◽  
Ionic Charge ◽  
Intimate Contact

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.

scholarly journals Deciphering the effect of traps on electronic charge transport properties of methylammonium lead tribromide perovskite

2020 ◽  
Vol 6 (37) ◽  
pp. eabb6393
Author(s):  
Artem Musiienko ◽  
Jindřich Pipek ◽  
Petr Praus ◽  
Mykola Brynza ◽  
Eduard Belas ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Charge Transport ◽  
Transport Properties ◽  
Critical Role ◽  
Charge Carriers ◽  
Electronic Charge ◽  
Free Charge ◽  
Optoelectronic Materials ◽  
Halide Perovskites

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.

scholarly journals Electronic conductivity of polymer electrolytes: electronic charge transport properties of LiTFSI-doped PEO

2020 ◽  
Vol 22 (15) ◽  
pp. 7680-7684 ◽  
Author(s):  
Mikael Unge ◽  
Harish Gudla ◽  
Chao Zhang ◽  
Daniel Brandell
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Band Gap ◽  
First Principles ◽  
Polymer Electrolytes ◽  
Electronic Conductivity ◽  
Electronic Conduction ◽  
Electronic Charge

Electronic conduction in polymer electrolytes in batteries will be of importance when it is made very thin. We calculate electronic charge transport properties from first principles, e.g. it is shown that the band gap of PEO with LiTFSI can reduce to 0.6 eV.

Annealing-Induced Morphological Changes in Nanocrystalline Quantum Dots and Their Impact on Charge Transport Properties

2011 ◽  
Vol 41 (3) ◽  
pp. 524-529 ◽  
Author(s):  
Sushmita Biswas ◽  
David J. Gosztola ◽  
Gary P. Wiederrecht ◽  
Michael A. Stroscio ◽  
Mitra Dutta
Keyword(s):  
Quantum Dots ◽  
Charge Transport ◽  
Transport Properties ◽  
Morphological Changes

Correlating Charge Transport Properties of Conjugated Polymers in Solution Aggregates and Thin‐Film Aggregates

2021 ◽  
Author(s):  
Jian Pei ◽  
Zi-Yuan Wang ◽  
Lucia Di Virgilio ◽  
Ze-Fan Yao ◽  
Zi-Di Yu ◽  
...  
Keyword(s):  
Thin Film ◽  
Conjugated Polymers ◽  
Charge Transport ◽  
Transport Properties

Charge transport properties of open-shell graphene fragments: a computational study of the phenalenyl tilings

2021 ◽  
Author(s):  
Wei-Chih Chen ◽  
Ito Chao
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Computational Study ◽  
Design Strategy ◽  
Open Shell

The skeleton of the phenalenyl radical was extended to explore charge-transporting materials. MO-based design strategy successfully leads to graphene-like radicals superior to the phenalenyl radical with different sizes and shapes.

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