Colloidal Nanocrystal Synthesis Protocol

Dodecanethiol (DDT, 98%), tributylphosphine (TBP, 95%), oleylamine (OLA, 90%), PbBr₂ (99.0%) and oleylamine (80%–90%, OLA) and zinc acetate dehydrate (Zn(OAc)₂, …⩾97%) were purchased from Aladdin. Acetone, methanol, hexane, toluene, poly(styrene-co-maleic anhydride) (PSMA, Mw ≈ 1700, styrene content 68%), anhydrous tetrahydrofuran (THF, 99.9%), cadmium oxide (CdO, 99.99%), trioctylphosphine (TOP, 90%), oleic acid (OA, 90%), and 1-octadecene (ODE, 90%) were bought from Sigma- Aldrich. Cs₂CO₃ (99.9%) was purchased from J&K. toluene (99.5%) and Poly(vinyl pyrrolidone) (PVP, K30, Mw ≈ 40 000) were purchased from Beijing Chemical Reagent Company. Poly [(9,9-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-{2,3}-thiadiazole)] (PFBT, Mw = 100 000–157 000) was purchased from ADS Dyes (Quebec, Canada). PF-DBT5 was prepared according to the method described in our previous report [39 (link)]. Selenium powder (Se, 100 mesh), and sulfur powder (S, 99.9%) were obtained from Alfa Aesar. All chemicals were used directly without further treatment. YAG phosphor was purchased from Intematix. UV glue NOA60 was obtained from LIENHE Fiber Optics.