chemicals were used before and used as
purchased, without any further purification: InCl3 (Sigma-Aldrich,
99.999% trace metal basis), ZnCl2 (Sigma-Aldrich, 99.999%
trace metal basis), oleylamine (OAm, Acros, 80–90% grade),
tris(diethylamino)phosphine ((DEA)3P, Sigma-Aldrich,
97%), sulfur powder (Sigma-Aldrich, ≥99.0%), trioctylphosphine
(TOP, Sigma-Aldrich, 97%), zinc stearate (ZnSt2 Sigma-Aldrich,
technical grade), 1-octadecence (ODE, Alfa Aesar, 90%), R5011 and
S5011 (Henan Tianfu Chemical, 99%). All reagents and solvents used
in L, OIM, and P-8-OPIMB synthesis were obtained from Sigma-Aldrich.