Bi2Se3 FRET PMMA Perovskite solar cell Research & information: general SrTiO3 WO3 bandgap carbon quantum dots disinfection down-conversion dye-guest encapsulation electrospinning engineering of silicon nanoparticles environmental remediation fibers heterostructures hybrid fluorescent system hydrogen hydrogen evolution hydrogen generation rate light harvesting mica microporous aluminophosphates nanocomposite photocatalyst nanocomposite thin film nanocomposites nanosilicon oxidation one-pot synthesis optoelectronics