Waveguiding of Photoluminescence in a Layer of Semiconductor Nanoparticles.

Semiconductor nanoparticles (SNPs), such as quantum dots (QDs) and core/shell nanoparticles, have proven to be promising candidates for the development of next-generation technologies, including light-emitting diodes (LEDs), liquid crystal displays (LCDs) and solar concentrators. Typically, these applications use a sub-micrometer-thick film of SNPs to realize photoluminescence. However, our current knowledge on how this thin SNP layer affects the optical efficiency remains incomplete.

Roll-Coated Fabrication of Fullerene-Free Organic Solar Cells with Improved Stability.

with improved stability and efficiency of up to 1% are fabricated by the roll-coating process on indium tin oxide free and flexible substrates, under ambient conditions.