Science Advances

Supplementary Materials

This PDF file includes:

  • Experimental Section
  • Table S1. Dipole moment and normalized polarity of common organic solvents.
  • Fig. S1. Characterization of macroinitiator and various 21-armed star-like homopolymer and copolymers.
  • Fig. S2. NMR spectra of polymers and DLS measurements of star-like P4VP-b-PtBA-b-PEO copolymer in different solvents.
  • Fig. S3. Structural characterization of PNCs prepared by conventional method and star-like block copolymer nanoreactor strategy, respectively.
  • Fig. S4. XRD patterns, UV-vis absorption and PL spectra, and TEM images of perovskites.
  • Fig. S5. UV absorption spectra of MAPbI3 PNCs prepared by different methods.
  • Fig. S6. XRD patterns of MAPbI3 prepared by reacting MAI with PbI2 dissolved in different solvents.
  • Fig. S7. Stability of MAPbX3 PNCs synthesized by conventional method (i.e., LARP) upon exposure to various common polar organic solvents by the addition of a designated volume of these solvents into the purified PNC toluene solution.
  • Fig. S8. MAPbBr3 PNCs prepared by conventional method when exposed to repeated solvent washing and mixing with PNCs of different compositions.
  • Fig. S9. Digital images of evolution of PS-capped MAPbBr3/SiO2 core/shell NCs dispersed in toluene with the addition of 20% water (by volume) under 365-nm UV light.

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