PMID- 33985123 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210514 IS - 1094-4087 (Electronic) IS - 1094-4087 (Linking) VI - 29 IP - 9 DP - 2021 Apr 26 TI - Preparation of a silver nano-tripod structure by a tilting angle deposition technique and its SERS application. PG - 13968-13977 LID - 10.1364/OE.420537 [doi] AB - A silver nano-tripod (AgNT) structure with a high-density "hot spots" distribution was fabricated by a tilting angle deposition technique. The electric field simulation distribution showed that the electric field enhancement of the AgNT structures is optimal when the tilting angle is 72 degrees . Such AgNT substrates were successfully obtained experimentally when the included angle between the silver vapor and the normal of the sample platform was set to 86 degrees . R6G and CV were used as probe molecules to investigate the SERS activity of AgNT, which revealed that the detection limits of AgNT for R6G and CV were 2.24x10(-8) M and 4.01x10(-8) M, the relative standard deviations (RSDs) were 4.26% and 4.44%, and the enhancement factors (EFs) were 9.58x10(6) and 1.16x10(7), respectively. The AgNT substrates with simple preparation and high distribution density of "hot spots" illustrate a good application prospect in environmental monitoring. FAU - Song, Yuhang AU - Song Y FAU - Wang, Qin AU - Wang Q FAU - Luo, Ying AU - Luo Y FAU - Cao, Wenxi AU - Cao W FAU - Cao, Zijin AU - Cao Z FAU - Yan, Changchun AU - Yan C FAU - Lu, Aixia AU - Lu A FAU - Han, Caiqin AU - Han C LA - eng PT - Journal Article PL - United States TA - Opt Express JT - Optics express JID - 101137103 SB - IM EDAT- 2021/05/15 06:00 MHDA- 2021/05/15 06:01 CRDT- 2021/05/14 01:01 PHST- 2021/05/14 01:01 [entrez] PHST- 2021/05/15 06:00 [pubmed] PHST- 2021/05/15 06:01 [medline] AID - 450362 [pii] AID - 10.1364/OE.420537 [doi] PST - ppublish SO - Opt Express. 2021 Apr 26;29(9):13968-13977. doi: 10.1364/OE.420537.