Didodecyldimethylammonium bromide

The cellulose derivatives carboxymethylcellulose, CMC (degree of substitution of 0.65–0.90; viscosity of a 1% aqueous solution is 1500–3000 cps), and quaternized hydroxyethylcellulose ethoxylate, QHECE, (viscosity of a 1% aqueous solution is 300–500 cps), the cationic surfactant didodecyldimethylammonium bromide, DDAB (purity of 98%), NaOH (≥98%), and HCl (30%) were purchased from Sigma-Aldrich. Deionized water was used in the preparation of all solutions.

Acetone (≥99.5%, Sigma-Aldrich), ammonium persulfate (≥98.0% Sigma-Aldrich), chlorobenzene (99.9%, Sigma-Aldrich), didodecyldimethylammonium bromide (98.0%, Sigma-Aldrich), 1-dodecanethiol (98.0%, ACROS Organics), 1,2-ethanedithiol (≥98.0%, Sigma-Aldrich), hydrochloric acid (37.0%, VWR Chemicals), mercury(ii) chloride (≥99.5%, Sigma-Aldrich), methanol (≥99.9%, Sigma-Aldrich), methyl-iso-butyl ketone (MIBK; 99.8%, VWR Chemicals), oleylamine (>95.0%, Strem Chemicals), tellurium (99.999%, Sigma-Aldrich), anhydrous tetrachloroethylene (≥99.0%, Sigma-Aldrich), tri-n-octylphosphine (97.0%, STREM), 50 K PMMA (4.0% in anisole, Allresist), 950 K PMMA (4.5% in anisole, Allresist) and 2-propanol (≥99.8%, Sigma-Aldrich).
All the chemicals were used as received, unless otherwise stated. oleylamine was dried and degassed under reduced pressure at a temperature of 120 °C for 1 h before its use.
Trioctylphosphine telluride (TOP:Te) was synthesized by stirring 5.08 g tellurium (0.04 mol) in dry trioctylphosphine (20 ml) for three days yielding a 2 M TOP:Te solution. The solution was filtered through a 0.45 μm polytetrafluoroethylene syringe filter resulting in a clear, yellowish solution.
Cleanroom: 21.5 °C; 45–50% relative humidity; particle class, 10–10,000; >18 MΩ cm purified water.

Cesium carbonate (99.9%), Cadmium acetate dihydrate (reagent grade 98%), Zinc acetate dihydrate (99.999% trace metals basis), Mercury acetate (ACS reagent ≥98.0%) 1‐octadecene (ODE; 90% tech.), Oleylamine (OAm; 70% tech.), Oleic acid (OA; 90% tech.), Methyl acetate (MeOAc; anhydrous 99.5%), Octane (anhydrous ≥99%), Toluene (anhydrous 99.8%), Hexane (anhydrous 95%), Chlorobenzene (anhydrous 99.8%), Lead bromide (PbBr₂; 99.999% trace metal basis), poly[(9,9‐dioctylfluorenyl‐2,7‐diyl)‐co‐(4,4′‐(N‐(4‐sec‐butyl phenyl)diphenylamine)] (TFB) and Didodecyldimethylammonium bromide (DDAB; 98%) and sodium fluoride (NaF; BioXtra, ≥99%) were purchased from Sigma Aldrich. Poly[bis(4‐phenyl)(2,4,6‐trimethylphenyl)amine (PTAA; M_w: 30 000) was purchased from Ossila. Indium tin oxide‐based transparent conductive electrode (≈4.5 Ω sq⁻¹) purchased from AMG. MoO₃ (99.9995%) was purchased from Alfa Aesar. Aqueous solution of PEDOT: PSS (Clevios AI 4083) purchased from Heraeus. 2,2′,2″‐(1,3,5‐benzinetriyl)tris(1‐phenyl‐1‐H‐benzimidazole) (TPBi; 99.9%) was purchased from OSM. LiF (99.9%), Ag (99.99%), and Al (99.9%) were purchased from iTASCO.

CsCO₃ (99.9%), octadecene (ODE;
for synthesis), oleic acid (OA; technical grade, 70%), PbBr₂ (99.999%), oleylamine (OLA; technical grade, 70%), toluene (99.8%),
hexane (95%), and di-dodecyl dimethyl ammonium bromide (DDAB; 98%)
were purchased from Sigma-Aldrich. ODE, OA, and OLA were degassed
at 120 °C before any reaction.

Lead(II) acetate trihydrate (Pb(CH₃COO)₂·3H₂O, 99.99%), cesium carbonate
(Cs₂CO₃, 99%), benzoyl bromide (97%), 1-octadecene
(ODE, 90%), anhydrous ethyl acetate (99.8%), anhydrous acetone, toluene
(≥99.7%), deuterated toluene (toluene-d₈, 99.8 at. % D), deuterated dimethyl sulfoxide (d-DMSO, 99.9
atom. % D), oleic acid (OA, 90%), didodecyldimethylammonium
bromide (DDABr, 98%), 1-octylamine (99%), dioctylamine (98%), trioctylamine
(98%), 1-octanal (99%), dioctyl sulfide (96%), 1-octanoic acid (%),
10-undecenoic acid (98%), diisooctylphosphinic acid (90%), 1-octylphosphonic
acid (99%), 1-octanol (99%), and 1-octanethiol (98.5%) were purchased
from Sigma. Didodecylamine (DDA, 97%) and 9-heptadecanone (98%) were
purchased from TCI Chemicals. Trioctylphosphine (TOP, 97%) and Trioctylphosphine
oxide (99%, TOPO) were purchased from Strem Chemicals. All chemicals
were used without further purification.