Enhanced Raman scattering based on a ZnO/Ag nanostructured substrate: an in-depth study of the SERS mechanism

Trang, Tran Thu; Vu, Xuan Hoa; Thi, Lan Ngo; Phạm, Thị Thu Hà; Dien, Nguyen Dac; Dang, Nguyen Van

doi:10.1039/d2cp05732h

Cited by 8 publications

(1 citation statement)

References 64 publications

(98 reference statements)

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“…This result strengthens the fact that chemical mechanism plays an important role in dielectric materials. In comparison to studies of charge transfer contribution in SERS activity based on other semiconductor materials have been studied such as Cu2O [27], Ag@Cu2O core-shell [28], ZnO@Ag [29], ZnO microtube surface in detection MB molecule shows the more predominant of charge transfer contribution than these ones.…”

Section: Study Of Sers Mechanism Of Zno Microtube In Detection Mbmentioning

confidence: 99%

Clarifying Contribution of SERS Mechanism Based on Semiconductor Material - ZnO Microtube in Probing Methylene Blue

Thu Trang

2024

MaP

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Surface-enhanced Raman spectroscopy (SERS) is a powerful technique for identifying molecular species, but it has been primarily limited to noble metal supports. The use of semiconductor materials as SERS surfaces has been attempted and has generally proven less effective than metal materials. It is known due to semiconductor materials' less efficient surface plasmon resonance (SPR) effect mechanism. This study clarified the SERS mechanism based on semiconductor material - ZnO microtube in probing methylene blue (MB) as an equal contribution of charge transfer and SPR mechanisms. Using Herzberg-Teller-surface selection rules, the charge transfer contribution in the SERS mechanism was estimated at approximately 50%. The limit of detection of ZnO microtube was achieved at 10-7 M, and the best enhancement factor was of 6.1×105.

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Section: Study Of Sers Mechanism Of Zno Microtube In Detection Mbmentioning

confidence: 99%

Clarifying Contribution of SERS Mechanism Based on Semiconductor Material - ZnO Microtube in Probing Methylene Blue

Thu Trang

2024

MaP

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Low-cost Ag/ZnO nanosheets arrays as sensitive and recyclable surface-enhanced Raman scattering substrates

Wang,

Liu,

et al. 2024

Optical Materials

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Surface enhanced Raman scattering based on ZnO/Cu@Ag heterojunction for detecting γ-aminobutyric acid molecules

Yang,

Chen,

Yuan

et al. 2024

Sensors and Actuators B: Chemical

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Enhanced Raman scattering based on a ZnO/Ag nanostructured substrate: an in-depth study of the SERS mechanism

Abstract: Combining semiconductor and noble metal nanostructures into a hybrid system has shown many complementary advantages in optical properties, making them more attractive in practical applications. Herein, we prepared a semiconductor/noble...

Cited by 8 publications

References 64 publications

Clarifying Contribution of SERS Mechanism Based on Semiconductor Material - ZnO Microtube in Probing Methylene Blue

Clarifying Contribution of SERS Mechanism Based on Semiconductor Material - ZnO Microtube in Probing Methylene Blue

Low-cost Ag/ZnO nanosheets arrays as sensitive and recyclable surface-enhanced Raman scattering substrates

Surface enhanced Raman scattering based on ZnO/Cu@Ag heterojunction for detecting γ-aminobutyric acid molecules

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