Silver nitrate (AgNO3, 99.9%), indium (III) acetate (In(Ac)3, 99.99%), and zinc stearate (ZnO: 12.5–14%) were purchased from Alfa Aesar. Indium (III) chloride (InCl3, 99.999%), 1-dodecanethiol (DDT, 98%), 1-octadecene (ODE, 90%), oleic acid (99%), acetone (>99%) and methanol (99.93%) were purchased from Sigma Aldrich. Ethanol (>99%), chloroform (>99.9%), and hexane (95%) were purchased from Pharmco-AAPER.
The ultraviolet and visible (UV-Vis) spectra of materials were obtained with a UV-Vis spectrometer (UV-2450 from Shimadzu). Photoluminescence spectra of NCs were acquired using a spectrophotometer (RF-5301PC from Shimadzu). Transmission electron microscope (TEM) images and Energy-dispersive X-ray (EDX) spectra were acquired using a JEOL analytical transmission electron microscope (model JEM 2100F operated with a 200 kV acceleration voltage) equipped with an Oxford Energy-Dispersive X-ray (EDX) spectrometer. Time-resolved photoluminescence lifetimes were measured by a Horiba Jobin Yvon Fluorolog-3 with a QY accessory and a time-correlated single-photon counting (TCSPC) spectrometer. The continuous excitation source was a 150 W ozone-free xenon arc-lamp. A pulsed xenon lamp or NanoLED (N-405L or N-300) was utilized as the excitation source for the photoluminescence decay measurement.
The ultraviolet and visible (UV-Vis) spectra of materials were obtained with a UV-Vis spectrometer (UV-2450 from Shimadzu). Photoluminescence spectra of NCs were acquired using a spectrophotometer (RF-5301PC from Shimadzu). Transmission electron microscope (TEM) images and Energy-dispersive X-ray (EDX) spectra were acquired using a JEOL analytical transmission electron microscope (model JEM 2100F operated with a 200 kV acceleration voltage) equipped with an Oxford Energy-Dispersive X-ray (EDX) spectrometer. Time-resolved photoluminescence lifetimes were measured by a Horiba Jobin Yvon Fluorolog-3 with a QY accessory and a time-correlated single-photon counting (TCSPC) spectrometer. The continuous excitation source was a 150 W ozone-free xenon arc-lamp. A pulsed xenon lamp or NanoLED (N-405L or N-300) was utilized as the excitation source for the photoluminescence decay measurement.