We report unprecedented phase stability of cubic CsPbBr quantum dots in ambient air obtained by using Br as halide precursor. Mechanistic investigation reveals the decisive role of temperature-controlled generated, oleylammonium halide species from molecular halogen and amine for the long term stability and emission tunability of CsPbX (X = Br, I) nanocrystals.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418586 | PMC |
http://dx.doi.org/10.1039/c9na00486f | DOI Listing |
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