A SERIES OF LAFEO3 PEROVSKITE NANOPARTICLES (NPS) WERE SUCCESSFULLY FORMED BY A DIRECT SOL-GEL METHOD INVOLVING DIFFERENT CITRIC ACID TO METAL RATIOS OF X (WHERE X = 2–16). THE RESULTED PRECURSORS WERE TREATED VIA AUTO-COMBUSTION, FOLLOWED BY CALCINATION AT DIFFERENT TEMPERATURES (300–700 C). SIZE-CONTROLLED LAFEO3 NPS WERE GETTING SMALLER DOWN TO 18.8 NM AT HIGH CITRIC ACID RATIO, SHOWING RELATIVELY ... إقراء المزيد