CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Creating SERS Hot Spots on MoS2 Nanosheets with in Situ Grown Gold Nanopartictes
Su, S; Zhang, C; Yuwen, LH; Chao, J; Zuo, XL; Liu, XF; Song, CY; Fan, CH; Wang, LH; chaojie@sinap.ac.cn; iamlhwang@njupt.edu.cn
2014
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume6Issue:21Pages:18735—18741
AbstractHerein, a reliable surface-enhanced Raman scattering (SERS)-active substrate has been prepared by synthesizing gold nanoparticles (AuNPs)-decorated MoS2 nanocomposite. The AuNPs grew in situ on the surface of MoS2 nanosheet to form efficient SERS hot spots by a spontaneous redox reaction with tetrachloroauric acid (HAuCl4) without any reducing agent. The morphologies of MoS2 and AuNPs-decorated MoS2 nanosheet were characterized by TEM, HRTEM, and AFM. The formation of hot spots greatly depended on the ratio of MoS2 and HAuCl4. When the concentration of HAuCl4 was 2.4 mM, the as-prepared AuNP5@MoS2-3 nanocomposite exhibited a high-quality SERS activity toward probe molecule due to the generated hot spots. The spot-to-spot SERS signals showed that the relative standard deviation (RSD) in the intensity of the main Raman vibration modes (1362, 1511, and 1652 cm(-1)) of Rhodamine 6G were about 20%, which displayed good uniformity and reproducibility. The AuNPs@MoS2-based substrate was reliable, sensitive, and reproducible, which showed great potential to be an excellent SERS substrate for biological and chemical detection.
KeywordEnhanced Raman-scattering Single-layer Dna Detection Spectroscopy Exfoliation Decoration Molecules Strategy Au Ag
Indexed BySCI
Language英语
WOS IDWOS:000344978200048
Citation statistics
Cited Times:132[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14060
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorchaojie@sinap.ac.cn; iamlhwang@njupt.edu.cn
Recommended Citation
GB/T 7714
Su, S,Zhang, C,Yuwen, LH,et al. Creating SERS Hot Spots on MoS2 Nanosheets with in Situ Grown Gold Nanopartictes[J]. ACS APPLIED MATERIALS & INTERFACES,2014,6(21):18735—18741.
APA Su, S.,Zhang, C.,Yuwen, LH.,Chao, J.,Zuo, XL.,...&iamlhwang@njupt.edu.cn.(2014).Creating SERS Hot Spots on MoS2 Nanosheets with in Situ Grown Gold Nanopartictes.ACS APPLIED MATERIALS & INTERFACES,6(21),18735—18741.
MLA Su, S,et al."Creating SERS Hot Spots on MoS2 Nanosheets with in Situ Grown Gold Nanopartictes".ACS APPLIED MATERIALS & INTERFACES 6.21(2014):18735—18741.
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