1：Experimental Design and Method Selection:

The study involves coupling perovskite quantum dots (PQDs) to silver nanowire networks (NWKs) with a polyvinyl alcohol (PVA) spacer to regulate the plasmonic cavity's lossy characteristics. The methodology includes fluorescence microscopy, and time-integrated and time-resolved emission measurements.

2：Sample Selection and Data Sources:

CsPbX3 PQDs were synthesized and coupled to Ag nanowire networks with varying PVA spacer thicknesses. The samples were prepared with the same PQD loadings to ensure consistent surface density.

3：List of Experimental Equipment and Materials:

Equipment includes a JEM1200EX transmission electron microscope (TEM), Zeiss Supra 40 electron microscope, Dimension Icon AFM, Hitachi U4100 Spectrometer, Axio Observer.Z1 microscope, and F980 spectrometer with a single photon photomultiplier detector.

4：Experimental Procedures and Operational Workflow:

The study involved preparing PQD films on different substrates (quartz, PVA layer, NWK), measuring their fluorescence intensity and emission rates, and analyzing the effects of PVA spacer thickness on these properties.

5：Data Analysis Methods:

The data was analyzed using time-correlated single photon counting (TCSPC) to assess the spontaneous emission rate of the coupled PQDs, with decay curves fitted using a biexponential function.