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Nanocrystalline triple perovskite compounds A3Fe2BO9 (A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting
ID
Kojčinović, Jelena
(
Avtor
),
ID
Sahu, Manisha
(
Avtor
),
ID
Hajra, Sugato
(
Avtor
),
ID
Tatar, Dalibor
(
Avtor
),
ID
Klaser, Teodoro
(
Avtor
),
ID
Skoko, Željko
(
Avtor
),
ID
Jagličić, Zvonko
(
Avtor
),
ID
Sadrollahi, Elaheh
(
Avtor
),
ID
Litterst, Fred Jochen
(
Avtor
),
ID
Kim, Hoe Joon
(
Avtor
),
ID
Djerdj, Igor
(
Avtor
)
URL - Izvorni URL, za dostop obiščite
https://pubs.rsc.org/en/content/articlelanding/2022/qm/d1qm01565f
Galerija slik
Izvleček
Four iron-based triple tungstate and tellurate perovskites have been synthesized in the nanocrystalline form using a simple sol–gel citrate route: Sr3Fe2WO9 (SFWO), Ba3Fe2WO9 (BFWO), Sr3Fe2TeO9 (SFTO), and Ba3Fe2TeO9 (BFTO). Strontium-based compounds crystallize in the tetragonal space group I4/m, while barium-based compounds crystallize in the hexagonal space group P63/mmc. All compounds possess a ferromagnetic order with high values for room-temperature magnetization. The magnetic state as traced by Mo¨ssbauer spectroscopy is heterogeneously related to disorder. The compounds also possess relatively high dielectric constants (20–199.16) measured at 1 MHz and a moderate loss factor. The synthesized triple perovskite compounds were utilized in the fabrication of vertical contact mode triboelectric nanogenerators (TENGs). The working mechanism and the electrical response of the TENGs were extensively studied. The TENG device based on BFTO/Kapton triboelectric layers produces the highest output of 88 V/2.69 mA. For the first time, the surface polarity of the triple perovskite was shown using a Kelvin probe force microscopy technique (KPFM), which elucidates the positive polarity of the triboelectric layer. Furthermore, the TENG device was used to charge several capacitors and to carry out the powering of electronics that make it an excellent choice for various self-powered applications.
Jezik:
Angleški jezik
Ključne besede:
perovskites
,
ferromagnetism
,
dielectric constant
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FMF - Fakulteta za matematiko in fiziko
FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:
2022
Št. strani:
Str. 1116-1128
Številčenje:
Vol. 6, iss. 9
PID:
20.500.12556/RUL-146428
UDK:
538.9
ISSN pri članku:
2052-1537
DOI:
10.1039/D1QM01565F
COBISS.SI-ID:
138237699
Datum objave v RUL:
31.05.2023
Število ogledov:
592
Število prenosov:
26
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Objavi na:
Gradivo je del revije
Naslov:
Materials chemistry frontiers
Skrajšan naslov:
Mater. chem. front.
Založnik:
Royal Society of Chemistry
ISSN:
2052-1537
COBISS.SI-ID:
20199427
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
perovskiti
,
feromagnetezem
,
dielektrična konstanta
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