fig2

Figure 2. (A) Synthesis process of CsPbBr₃@ZrO₂ NCs at room temperature; (B) PL decay curves of CsPbBr₃@ZrO₂ NCs with different amounts of Zr(C₄H₉O)₄; (C and D) transmission electron microscopy (TEM) images of yellow and red PNCs; (E) frequency response of red and yellow PNC-PMMA, and their bandwidth. Inset is the schematic of the test setup for the bandwidth measurement; (F) emission spectra of red and yellow PNC-PMMA. Insets are the photos of red and yellow PQD samples dispersed in n-hexane under 365-nm UV light irradiation. Reproduced with permission: (A and B)^[51], Copyright 2021, Wiley-VCH GmbH; (C-F)^[31], Copyright 2021, American Chemical Society. NC: nanocrystal; PQD: perovskite quantum dot; UV: ultraviolet; PNC-PMMA: perovskite nanocrystal-polymethyl methacrylate.