2026-10-14T07:46:53Z https://www.scidb.cn/oai

10.57760/sciencedb.03819 2022-10-26T11:17:09Z

2022-10-26 Convective Self-Assembly of 2D Non-Close-Packed Binary Au Nanoparticle Array with Tunable Optical Properties doi:10.57760/sciencedb.03819 en Field emission scanning electron microscopy (FE-SEM, Sirion 200) was used to characterize the morphologies of the products. A sputtering device (Quorum, K550X) was employed to deposit the thin Au film on the PS crystal colloidal monolayer. The optical absorption spectra of the products were obtained with an ultraviolet–visible–near-infrared (UV–Vis–NIR) spectrophotometer (Varian, Cary 500). Reflection spectra were collected using the R1 angle-resolved spectroscopy system (R1-A-UV). A confocal microprobe Raman spectrometer (Renishaw Invia) was used to determine the SERS properties. The laser wavelength was 785 nm, and SERS spectra were obtained after integration for 5 s and accumulated 1 time. The laser power was 0.25 mW. Binary array; Hexagonally non-close-packed (hncp) structure; Core-satellite unit; ; Short-range convective flow; Self-assembly; Gold nanoparticles li yue Changchang Xing Dilong Liu Weiping Ca PUBLIC https://creativecommons.org/licenses/by-sa/4.0/ dataset http://www.doi.org/10.1021/acs.chemmater.0c03799 Science Data Bank