Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Carbon Dots with an Emission in the Near Infrared Produced from Organic Dyes in Porous Silica Microsphere Templates. / Stepanidenko, Evgeniia A.; Skurlov, Ivan D.; Khavlyuk, Pavel D.; Onishchuk, Dmitry A.; Koroleva, Aleksandra V.; Zhizhin, Evgeniy V.; Arefina, Irina A.; Kurdyukov, Dmitry A.; Eurov, Daniil A.; Golubev, Valery G.; Baranov, Alexander V.; Fedorov, Anatoly V.; Ushakova, Elena V.; Rogach, Andrey L.
в: Nanomaterials, Том 12, № 3, 543, 05.02.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Carbon Dots with an Emission in the Near Infrared Produced from Organic Dyes in Porous Silica Microsphere Templates
AU - Stepanidenko, Evgeniia A.
AU - Skurlov, Ivan D.
AU - Khavlyuk, Pavel D.
AU - Onishchuk, Dmitry A.
AU - Koroleva, Aleksandra V.
AU - Zhizhin, Evgeniy V.
AU - Arefina, Irina A.
AU - Kurdyukov, Dmitry A.
AU - Eurov, Daniil A.
AU - Golubev, Valery G.
AU - Baranov, Alexander V.
AU - Fedorov, Anatoly V.
AU - Ushakova, Elena V.
AU - Rogach, Andrey L.
N1 - Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/2/5
Y1 - 2022/2/5
N2 - Carbon dots (CDs) with an emission in the near infrared spectral region are attractive due to their promising applications in bio-related areas, while their fabrication still remains a challenging task. Herein, we developed a template-assisted method using porous silica microspheres for the formation of CDs with optical transitions in the near infrared. Two organic dyes, Rhodamine 6G and IR1061 with emission in the yellow and near infrared spectral regions, respectively, were used as precursors for CDs. Correlation of morphology and chemical composition with optical properties of obtained CDs revealed the origin of their emission, which is related to the CDs’ core optical transitions and dye-derivatives within CDs. By varying annealing temperature, different kinds of optical centers as derivatives of organic dyes are formed in the microsphere’s pores. The template-assisted method allows us to synthesize CDs with an emission peaked at 1085 nm and photoluminescence quantum yield of 0.2%, which is the highest value reported so far for CDs emitting at wave-lengths longer than 1050 nm.
AB - Carbon dots (CDs) with an emission in the near infrared spectral region are attractive due to their promising applications in bio-related areas, while their fabrication still remains a challenging task. Herein, we developed a template-assisted method using porous silica microspheres for the formation of CDs with optical transitions in the near infrared. Two organic dyes, Rhodamine 6G and IR1061 with emission in the yellow and near infrared spectral regions, respectively, were used as precursors for CDs. Correlation of morphology and chemical composition with optical properties of obtained CDs revealed the origin of their emission, which is related to the CDs’ core optical transitions and dye-derivatives within CDs. By varying annealing temperature, different kinds of optical centers as derivatives of organic dyes are formed in the microsphere’s pores. The template-assisted method allows us to synthesize CDs with an emission peaked at 1085 nm and photoluminescence quantum yield of 0.2%, which is the highest value reported so far for CDs emitting at wave-lengths longer than 1050 nm.
KW - Carbon dots
KW - Near infrared emission
KW - Organic dyes
KW - Silica microspheres
KW - Template synthesis
KW - template synthesis
KW - MECHANISM
KW - MOF
KW - ONE-POT
KW - SPHERES
KW - QUANTUM DOTS
KW - carbon dots
KW - organic dyes
KW - LUMINESCENCE
KW - silica microspheres
KW - CITRIC-ACID
KW - NANODOTS
KW - near infrared emission
KW - PYROLYSIS
KW - SPECTRUM
UR - http://www.scopus.com/inward/record.url?scp=85123950098&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/b9928210-6814-3570-839c-fc748ee79c2a/
U2 - 10.3390/nano12030543
DO - 10.3390/nano12030543
M3 - Article
AN - SCOPUS:85123950098
VL - 12
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 3
M1 - 543
ER -
ID: 93968888