Colloidal thallium halide nanocrystals with reasonable luminescence, carrier mobility and diffusion length† †Electronic supplementary information (ESI) available: Synthesis and additional characterization of nanocrystals, characterization of nanocrystal films, temperature-dependent phase transition, coefficient of volume expansion, PL decay dynamics, tabulated best fit parameters, and methodology analysis of ultrafast optical pump THz probe (OPTP) spectroscopy. See DOI: 10.1039/c7sc01219e Click here for additional data file.
نویسندگان
چکیده
Chemicals: Thallium (I) nitrate (TlNO3, 99.9%), tetrabutylammonium iodide (TBAI, 99%), tetrabutylammonium bromide (TBABr, 98%), 1-octadecene (ODE, tech. 90%), oleylamine (OLA, tech. 70%), oleic acid (OA, tech. 90%), potassium bromide (KBr, 99%) and fluorescein sodium salt (98.5-100.5%) were purchased from Sigma-Aldrich. Hexane (98%), toluene (99.5%), 1-butanol (99.5%) and acetonitrile (99.8%) were purchased from local vendors.
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