首页|Ag/Ga-doped ZnO/pyramidal silicon as a multifunctional surface-enhanced Raman scattering substrate

Ag/Ga-doped ZnO/pyramidal silicon as a multifunctional surface-enhanced Raman scattering substrate

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  • NSTL
  • Elsevier
High-performance surface-enhanced Raman scattering (SERS)-active substrate can be fabricated by deposited silver (Ag) nanoparticles on the pyramidal silicon with Ga-doped zinc oxide (ZnO) nanoneedles. Properly manufacturing a ZnO seed layer on pyramidal silicon may be beneficial to grow vertically aligned Ga-doped ZnO nanoneedles to deposit silver nanoparticles uniformly. Suitable silver sputtering duration on the Ga-doped ZnO nanoneedles has been upgraded to produce the most remarkable SERS effect in rhodamine 6G (R6G) molecules. SERS results show that Ag/Ga doped ZnO/pyramidal silicon is better than Ag/pyramidal silicon and Ag/silicon substrates. This phenomenon is attributed to Ag/Ga-doped ZnO/pyramidal silicon geometry, providing more hot spots and surface-active sites to exhibit high SERS enhancement, good reproducibility, and long-term stability. Ag/Ga doped ZnO/pyramidal silicon can also provide excellent SERS active substrates for detecting different types of drugs with low detection limits, such as amoxicillin (10(-10) M) and irinotecan (10(-7) M). (C) 2021 Elsevier B.V. All rights reserved.

Surface-enhanced Raman scatteringSilver nanoparticlesPyramidal siliconGa-doped ZnO nanoneedlesReproducibilityStabilityAG NANOPARTICLESNANOWIRE ARRAYSLOW-TEMPERATUREZNO NANOWIRESSERSPHOTODEGRADATIONSPECTROSCOPYFABRICATIONIRINOTECANCANCER

Chang, Tung-Hao、Chuang, Kai-Wei、Chang, Yu-Cheng

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Changhua Christian Hosp

Feng Chia Univ

2022

10.1016/j.jallcom.2021.162288

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.893
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