This　comprehensive　review　analysis　examines　the　domain　of　composite　thermoelectric　materials　that　integrate　nanoparticles,　providing　a　critical　assessment　of　their　methods　for　improving　thermoelectric　properties　and　the　procedures　used　for　their　fabrication.　This　study　examines　several　approaches　to　enhance　power　factor　and　lattice　thermal　conductivity,　emphasizing　the　influence　of　secondary　phases　and　structural　alterations.　This　study　investigates　the　impact　of　synthesis　methods　on　the　electrical　characteristics　of　materials,　with　a　particular　focus　on　novel　techniques　such　as　electrodeposition　onto　carbon　nanotubes.　The　acquired　insights　provide　useful　guidance　for　the　creation　of　new　thermoelectric　materials.　The　review　also　compares　and　contrasts　organic　and　inorganic　thermoelectric　materials,　with　a　particular　focus　on　the　potential　of　inorganic　materials　in　the　context　of　waste　heat　recovery　and　power　production　within　industries.　This　analysis　highlights　the　role　of　inorganic　materials　in　improving　energy　efficiency　and　promoting　environmental　sustainability.　©　2024　The　Authors.　Published　by　American　Chemical　Society.