Copper(I) chloride (CuCl, 99.99% extra pure),
ethanol (EtOH, 99.5%, extra dry) and
silver nitrate (99.85%) were purchased from Acros Organics.
Selenium (Se, 99.999%, 200 mesh), m
ethanol (MeOH, 99.9%, anhydrous),
toluene (99.8%, anhydrous packed under argon) and
n-butanol (99.9% packed under argon) were purchased from Alfa Aesar.
Sulfur (S, 99.98%),
tetrakis (acetonitrile)copper(I) hexafluorophosphate ([Cu(CH 3 CN) 4 ]PF 6 , 97%),
dodecylamine (DDA, 98%),
didodecyl-dimethylammonium bromide (DDAB, 98%),
octadecene (ODE, 90%) and
oleylamine (OLA, >70%) were purchased from Sigma Aldrich. Gold(III) chloride (99%) was purchased from ABCR. Hydrochloric acid (>37%, for trace analysis) and nitric acid (>69%, for trace analysis) were purchased from Fluka.
Pre-degassed OLA and ODE were prepared by placing each solvent in a separate flask and heating them under reflux (≤1 × 10 -3 mbar, 115 °C) for 6 h, while purging them multiple times with argon. Afterwards they are transferred and stored inside the glove box under inert gas.
All other chemicals were used without further purification.
If not otherwise mentioned all experiments have been done under argon using standard Schlenk line techniques or were done inside a nitrogen filled glove box.
Wolf A., Kodanek T, & Dorfs D. (2015). Tuning the LSPR in copper chalcogenide nanoparticles by cation intercalation, cation exchange and metal growth. Nanoscale, 7(46).