title: Ordered array of Ag semishells on different diameter monolayer polystyrene colloidal crystals: An ultrasensitive and reproducible SERS substrate.
abstract: Ag semishells (AgSS) ordered arrays for surface-enhanced Raman scattering (SERS) spectroscopy have been prepared by depositing Ag film onto polystyrene colloidal particle (PSCP) monolayer templates array. The diversified activity for SERS activity with the ordered AgSS arrays mainly depends on the PSCP diameter and Ag film thickness. The high SERS sensitivity and reproducibility are proved by the detection of rhodamine 6G (R6G) and 4-aminothiophenol (4-ATP) molecules. The prominent enhancements of SERS are mainly from the "V"-shaped or "U"-shaped nanogaps on AgSS, which are experimentally and theoretically investigated. The higher SERS activity, stability and reproducibility make the ordered AgSS a promising choice for practical SERS low concentration detection applications.
authors: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621900, China.|Co-Innovation Center for Energetic Materials, Southwest University of Science and Technology, Mianyang 621900, China.
authors: Zao
authors: Z
authors: Yi
authors: Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
authors: Gao
authors: G
authors: Niu
authors: Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
authors: Jiangshan
authors: J
authors: Luo
authors: Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
authors: Xiaoli
authors: X
authors: Kang
authors: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621900, China.|Co-Innovation Center for Energetic Materials, Southwest University of Science and Technology, Mianyang 621900, China.
authors: Weitang
authors: W
authors: Yao
authors: Department of Physics, Dongguk University, Seoul, 100715, Korea.
authors: Weibin
authors: W
authors: Zhang
authors: College of Physics and Electronics, Central South University, Changsha 410083, China.
authors: Yougen
authors: Y
authors: Yi
authors: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621900, China.|Co-Innovation Center for Energetic Materials, Southwest University of Science and Technology, Mianyang 621900, China.
authors: Yong
authors: Y
authors: Yi
authors: Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
authors: Xin
authors: X
authors: Ye
authors: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621900, China.|Co-Innovation Center for Energetic Materials, Southwest University of Science and Technology, Mianyang 621900, China.
authors: Tao
authors: T
authors: Duan
authors: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621900, China.|Co-Innovation Center for Energetic Materials, Southwest University of Science and Technology, Mianyang 621900, China.
authors: Yongjian
authors: Y
authors: Tang