Evidence of flexoelectricity in graphene nanobubbles created by
tip induced electric field

J 2021

Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field

ROY, Rajarshi, David NEČAS a Lenka ZAJÍČKOVÁ

Základní údaje

Originální název

Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field

Autoři

ROY, Rajarshi (356 Indie, domácí), David NEČAS (203 Česká republika) a Lenka ZAJÍČKOVÁ (203 Česká republika, domácí)

Vydání

Carbon, Elsevier, 2021, 0008-6223

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 11.307

Kód RIV

RIV/00216224:14310/21:00121550

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.carbon.2021.04.086

UT WoS

000661625400065

Klíčová slova anglicky

Graphene nanobubbles; Piezoelectric force microscopy; Flexoelectricity

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 15. 2. 2023 18:53, doc. Mgr. Lenka Zajíčková, Ph.D.

Anotace

V originále

Strain engineering in graphene nanobubbles (GNB) has made significant progress in recent years opening new possibilities to observe quantum phenomena such as Newton's ring oscillation and generation of pseudomagnetic field. Here, we demonstrated that controlled formation of graphene nanobubbles is possible on transferred graphene on standard SiO2/Si substrate by the application of external electric field through the tip of piezoelectric force microscope (PFM). We manipulated their dimensional attributes (height, area and volume) by varying tip ramp voltage and tip distance. Prominent out-of-plane piezo-response (flexoelectricity) was observed using PFM in the newly created nanobubbles due to the presence of non-uniform strain gradients in the nanobubbles. Moreover, we found quadratic dependence of the effective piezoelectric coefficient proportional to the increasing bubble creation ramp voltage. Our work motivates the exploration of flexoelectric properties and related applications with 2D nanobubbles on different substrates.

Návaznosti

EF18_070/0009846, projekt VaV

Název: MSCAfellow2@MUNI

Přiložené soubory

1-s2_iskdpjer.0-S0008622321004759-main.pdf

Vyhledat podobné dokumenty

Citovat

ROY, Rajarshi, David NEČAS a Lenka ZAJÍČKOVÁ. Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field. Carbon. Elsevier, 2021, roč. 179, č. 1, s. 677-682. ISSN 0008-6223. Dostupné z: https://dx.doi.org/10.1016/j.carbon.2021.04.086.

@article{1766538,
   author = {Roy, Rajarshi and Nečas, David and Zajíčková, Lenka},
   article_number = {1},
   doi = {http://dx.doi.org/10.1016/j.carbon.2021.04.086},
   keywords = {Graphene nanobubbles; Piezoelectric force microscopy; Flexoelectricity},
   language = {eng},
   issn = {0008-6223},
   journal = {Carbon},
   title = {Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field},
   url = {https://www.sciencedirect.com/science/article/pii/S0008622321004759?via%3Dihub},
   volume = {179},
   year = {2021}
}

TY  - JOUR
ID  - 1766538
AU  - Roy, Rajarshi - Nečas, David - Zajíčková, Lenka
PY  - 2021
TI  - Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field
JF  - Carbon
VL  - 179
IS  - 1
SP  - 677-682
EP  - 677-682
PB  - Elsevier
SN  - 00086223
KW  - Graphene nanobubbles
KW  - Piezoelectric force microscopy
KW  - Flexoelectricity
UR  - https://www.sciencedirect.com/science/article/pii/S0008622321004759?via%3Dihub
N2  - Strain engineering in graphene nanobubbles (GNB) has made significant progress in recent years opening new possibilities to observe quantum phenomena such as Newton's ring oscillation and generation of pseudomagnetic field. Here, we demonstrated that controlled formation of graphene nanobubbles is possible on transferred graphene on standard SiO2/Si substrate by the application of external electric field through the tip of piezoelectric force microscope (PFM). We manipulated their dimensional attributes (height, area and volume) by varying tip ramp voltage and tip distance. Prominent out-of-plane piezo-response (flexoelectricity) was observed using PFM in the newly created nanobubbles due to the presence of non-uniform strain gradients in the nanobubbles. Moreover, we found quadratic dependence of the effective piezoelectric coefficient proportional to the increasing bubble creation ramp voltage. Our work motivates the exploration of flexoelectric properties and related applications with 2D nanobubbles on different substrates.
ER  -

ROY, Rajarshi, David NEČAS a Lenka ZAJÍČKOVÁ. Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field. \textit{Carbon}. Elsevier, 2021, roč.~179, č.~1, s.~677-682. ISSN~0008-6223. Dostupné z: https://dx.doi.org/10.1016/j.carbon.2021.04.086.

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