Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Guiding Graphene Derivatization for the On-Chip Multisensor Arrays : From the Synthesis to the Theoretical Background. / Rabchinskii, Maxim K.; Sysoev, Victor V.; Glukhova, Olga E.; Brzhezinskaya, Maria; Stolyarova, Dina Yu; Varezhnikov, Alexey S.; Solomatin, Maksim A.; Barkov, Pavel V.; Kirilenko, Demid A.; Pavlov, Sergei I.; Baidakova, Marina V.; Shnitov, Vladimir V.; Struchkov, Nikolai S.; Nefedov, Denis Yu; Antonenko, Anastasiia O.; Cai, P.; Liu, Z.; Brunkov, Pavel N.
в: Advanced Materials Technologies, Том 7, № 7, 2101250, 07.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Guiding Graphene Derivatization for the On-Chip Multisensor Arrays
T2 - From the Synthesis to the Theoretical Background
AU - Rabchinskii, Maxim K.
AU - Sysoev, Victor V.
AU - Glukhova, Olga E.
AU - Brzhezinskaya, Maria
AU - Stolyarova, Dina Yu
AU - Varezhnikov, Alexey S.
AU - Solomatin, Maksim A.
AU - Barkov, Pavel V.
AU - Kirilenko, Demid A.
AU - Pavlov, Sergei I.
AU - Baidakova, Marina V.
AU - Shnitov, Vladimir V.
AU - Struchkov, Nikolai S.
AU - Nefedov, Denis Yu
AU - Antonenko, Anastasiia O.
AU - Cai, P.
AU - Liu, Z.
AU - Brunkov, Pavel N.
N1 - Publisher Copyright: © 2022 Wiley-VCH GmbH.
PY - 2022/7
Y1 - 2022/7
N2 - Engineering the physics and chemistry of 2D materials is a key to unlock the potential of the advanced e-nose technologies limited by the current semiconductor technologies. Herein, the adjustment of the graphene's morphology, physics, and gas sensing properties upon its carboxylation via the developed photochemical method is demonstrated. Formation of matrices of nanoscale holes yet with the retention of the lamellar structure of the graphene layer is signified upon the introduction of up to 9.5 at% of carboxyl groups. The impact of the applied carboxylation on the conduction mechanism and electronic structure is demonstrated. The appearance of a set of the localized states in the valence band is revealed, originating from the molecular orbitals of carboxyls as is signified by the proposed approach for the identification of electronic states in graphene chemical derivatives. Given holey structure, predominance of highly affine carboxyls, and lateral inhomogeneity, the enhanced detection and discrimination of various alcohols, acetone, and ammonia vapors at room temperature is demonstrated. The opposite chemiresistive response toward ammonia in the humid air is also experimentally revealed and justified by the performed density functional theory modeling on the effect of ammonia, water, and their mix on electronic structure, and resistivity of the carboxylated graphene.
AB - Engineering the physics and chemistry of 2D materials is a key to unlock the potential of the advanced e-nose technologies limited by the current semiconductor technologies. Herein, the adjustment of the graphene's morphology, physics, and gas sensing properties upon its carboxylation via the developed photochemical method is demonstrated. Formation of matrices of nanoscale holes yet with the retention of the lamellar structure of the graphene layer is signified upon the introduction of up to 9.5 at% of carboxyl groups. The impact of the applied carboxylation on the conduction mechanism and electronic structure is demonstrated. The appearance of a set of the localized states in the valence band is revealed, originating from the molecular orbitals of carboxyls as is signified by the proposed approach for the identification of electronic states in graphene chemical derivatives. Given holey structure, predominance of highly affine carboxyls, and lateral inhomogeneity, the enhanced detection and discrimination of various alcohols, acetone, and ammonia vapors at room temperature is demonstrated. The opposite chemiresistive response toward ammonia in the humid air is also experimentally revealed and justified by the performed density functional theory modeling on the effect of ammonia, water, and their mix on electronic structure, and resistivity of the carboxylated graphene.
KW - 2D material
KW - density functional theory calculations
KW - derivatization
KW - e-nose
KW - electronic structure
KW - gas sensor
KW - multisensor array
KW - RAY-ABSORPTION-SPECTROSCOPY
KW - ELECTRICAL-CONDUCTIVITY
KW - GRAPHITE OXIDE
KW - MOLECULES
KW - FUNCTIONALIZATION
KW - DENSITY
KW - ELECTRONIC-STRUCTURE RECOVERY
KW - GAS SENSOR
KW - SELECTIVITY
KW - PRISTINE
UR - http://www.scopus.com/inward/record.url?scp=85125467620&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a08b7669-ee9f-374e-b0d2-c7718dac006e/
U2 - 10.1002/admt.202101250
DO - 10.1002/admt.202101250
M3 - Article
AN - SCOPUS:85125467620
VL - 7
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
SN - 2365-709X
IS - 7
M1 - 2101250
ER -
ID: 94274492