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Naslov:Time-of-flight photoconductivity investigation of high charge carrier mobility in Ti3C2Tx MXenes thin-film
Avtorji:ID Urbančič, Jurij (Avtor)
ID Tomsic, Erika (Avtor)
ID Chhikara, Manisha (Avtor)
ID Pastukhova, Nadiia (Avtor)
ID Tkachuk, Vadym (Avtor)
ID Dixon, Alex (Avtor)
ID Mavrič, Andraž (Avtor)
ID Hashemi, Payam (Avtor)
ID Sabaghi, Davood (Avtor)
ID Shaygan Nia, Ali (Avtor)
ID Bratina, Gvido (Avtor)
ID Pavlica, Egon (Avtor)
Datoteke:.pdf 1-s2.0-S0925963523002042-main.pdf (1,97 MB)
MD5: 564ACF3AA616DDCD467E7AC906F04BB5
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Charge transport through a randomly oriented multilayered network of two-dimensional (2D) Ti3C2Tx (where Tx is the surface termination and corresponds to O, OH and F) was studied using time-of-flight photoconductivity (TOFP) method, which is highly sensitive to the distribution of charge carrier velocities. We prepared samples comprising Ti3C2Tx with thickness of 12 nm or 6-monolayers. MXene flakes of size up to 16 μm were randomly deposited on the surface by spin-coating from water solution. Using TOFP, we have measured electron mobility that reached values up to 279 cm2/Vs and increase with electric-field in a Poole-Frenkel manner. These values are approximately 50 times higher than previously reported field-effect mobility. Interestingly, our zero-electric-field extrapolate approaches electron mobility measured using terahertz absorption method, which represents intra-flake transport. Our data suggest that macroscopic charge transport is governed by two distinct mechanisms. The high mobility values are characteristic for the intra-flake charge transport via the manifold of delocalized states. On the other hand, the observed Poole-Frenkel dependence of charge carrier mobility on the electric field is typical for the disordered materials and suggest the existence of an important contribution of inter-flake hopping to the overall charge transport.
Ključne besede:charge transport, multilayered network, flakes, time-of-flight photoconductivity, MXene exfoliation, high-mobility solution-cast thin-film, semiconducting MXene
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2023
Leto izida:2023
Št. strani:str. 1-6
Številčenje:Vol. 135, [article no.] ǂ109879
PID:20.500.12556/RUNG-8102-c16c2c18-521d-7175-6753-510f5b05944d Novo okno
COBISS.SI-ID:147310851 Novo okno
UDK:53
ISSN pri članku:0925-9635
DOI:10.1016/j.diamond.2023.109879 Novo okno
NUK URN:URN:SI:UNG:REP:AVLCDUMO
Datum objave v RUNG:31.03.2023
Število ogledov:2747
Število prenosov:9
Metapodatki:XML DC-XML DC-RDF
:
URBANČIČ, Jurij, TOMSIC, Erika, CHHIKARA, Manisha, PASTUKHOVA, Nadiia, TKACHUK, Vadym, DIXON, Alex, MAVRIČ, Andraž, HASHEMI, Payam, SABAGHI, Davood, SHAYGAN NIA, Ali, BRATINA, Gvido in PAVLICA, Egon, 2023, Time-of-flight photoconductivity investigation of high charge carrier mobility in ▫$Ti_3C_2T_x$▫ MXenes thin-film. Diamond and related materials [na spletu]. 2023. Vol. 135, no. 109879, p. 1–6. [Dostopano 7 april 2025]. DOI 10.1016/j.diamond.2023.109879. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=8102
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Gradivo je del revije

Naslov:Diamond and related materials
Založnik:Elsevier, Elsevier Sequoia
ISSN:0925-9635
COBISS.SI-ID:15347205 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P1-0055
Naslov:Biofizika polimerov, membran, gelov, koloidov in celic

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:31.03.2023

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