Fabrication of Cu2O/Ag composite nanoframes as surface-enhanced Raman scattering substrates in a successive one-pot procedure

• DOI: 10.1039/c3ce42052c
• Publication Date: 2014-01-09T11:01:10Z
• Authors: Lihua Yang; Jian Lv; Yongming Sui; Wuyou Fu; Xiaoming Zhou; Jinwen Ma; Shi Su; Wenjiao Zhang; Pin Lv; Di Wu; Yannan Mu; Haibin Yang
• Keywords: Nanomaterials; Silver nanoparticle

Semiconductor/metal composite nanomaterials have been used as surface-enhanced Raman scattering (SERS) active substrates and attracted increasing attention due to their widespread applications in both optical material fields. Here, we report a facile strategy prepare highly sensitive SERS with excellent reproducibility stability based on uniform well-controlled Ag nanoparticle (NP) decorated Cu2O nanoframes. Our is unique one-pot procedure. Simply, hollow Cu2O/Ag nanoframes (Cu2O/Ag CNFs) tunable silver content successfully designed constructed by reduction of Ag+ sodium citrate 14 day old Cu2O-containing mother solution, then second component (Ag) was directly deposited onto primary (Cu2O nanoframes). There an optimum amount NPs. When 0.40 mM AgNO3 used, the prepared CNFs show significantly improved properties enhancement factor ~105. Furthermore, mechanism, are investigated detail. The suggest that this substrate has potential application detection.