1 Department of Chemistry and Biochemistry and Centre for NanoScience Research Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada. marek.majewski@concordia.ca.
2 Department of Engineering Physics, Polytechnique Montréal, Montréal, Quebec, Canada.

We report two photonic crystal-perovskite nanocrystal microbead hybrids with photoluminescence matching that of the parent nanocrystals but with increased photoluminescence quantum yields. Time-resolved photoluminescence spectroscopy quantifies the radiative enhancement afforded by the photonic environment of the microbeads. The reported hybrids also demonstrate markedly better resistance to degradation in water over 30 days of immersion.