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| Hauptseite > Publikationsdatenbank > Polaron transport mechanism in maricite NaFePO4: A combined experimental and simulation study > print |
| Hauptseite > Publikationsdatenbank > Polaron transport mechanism in maricite NaFePO4: A combined experimental and simulation study > print |
| 001 | 878029 | ||
| 005 | 20240708132714.0 | ||
| 024 | 7 | _ | |a 10.1016/j.jpowsour.2020.228348 |2 doi |
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| 100 | 1 | _ | |a Sharma, Monika |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Polaron transport mechanism in maricite NaFePO4: A combined experimental and simulation study |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2020 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a We report, for the first time, systematic investigations on electronic properties of maricite NaFePO4 with different crystallite sizes by a combined experimental and theoretical approach. Ac impedance spectroscopy has been used to study the polaron transport behaviour in maricite NaFePO4 structure with different crystallite sizes over a wide range of temperatures. With the decrease in crystallite size, we observe a polaronic conductivity enhancement of approximately an order of magnitude at the nanoscale level as compared with its bulk counterpart. The temperature dependent dc conductivity has been analysed within the framework of the Mott model of polaron hopping and various physical parameters relevant for the polaron hopping process were extracted. Additionally, by introducing an approximated Mott model with calculated hole polaron migration barrier from density functional theory, we evaluated the polaronic conductivity as function of crystallite size in fair agreement with experimental data. The enhanced polaronic conductivity with crystallite size reduction is found to be due to the combined effect of increased polaron concentration, reduced hopping length, and lowered migration barrier. |
| 536 | _ | _ | |a 131 - Electrochemical Storage (POF3-131) |0 G:(DE-HGF)POF3-131 |c POF3-131 |f POF III |x 0 |
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| 700 | 1 | _ | |a Murugavel, Sevi |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Kaghazchi, Payam |0 P:(DE-Juel1)174502 |b 2 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1016/j.jpowsour.2020.228348 |g Vol. 469, p. 228348 - |0 PERI:(DE-600)1491915-1 |p 228348 - |t Journal of power sources |v 469 |y 2020 |x 0378-7753 |
| 856 | 4 | _ | |y Published on 2020-06-12. Available in OpenAccess from 2022-06-12. |u https://juser.fz-juelich.de/record/878029/files/JPS.pdf |
| 856 | 4 | _ | |y Published on 2020-06-12. Available in OpenAccess from 2022-06-12. |x pdfa |u https://juser.fz-juelich.de/record/878029/files/JPS.pdf?subformat=pdfa |
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