TY - JOUR T1 - Surface area enhancement of TiO2 nanoparticles in dye sensitized solar cell by electric charge injection and evaluation by optical spectroscopy TT - افزایش سطح موثر نانوذرات اکسید تیتانیوم در سلول های خورشیدی رنگدانه ای به کمک تزریق بار الکتریکی و اندازه گیری آن توسط طیف سنجی نوری JF - opsi JO - opsi VL - 23 IS - 0 UR - http://opsi.ir/article-1-1379-en.html Y1 - 2017 SP - 805 EP - 808 KW - absorbance spectroscopy KW - Dye Sensitized Solar Cell (DSSC) KW - Aggregation KW - Charge Injection KW - surface area N2 - Here in, we report a physical novel method as charge injection assisted sintering process in the field of dye sensitized solar cell. Charge injection within sintering process can decrease TiO2 nanoparticle aggregation and increase effective surface area very well which provide more space for dye settlement. Obviously, FESEM imaging exhibits surface area increased in nanoparticle matrix. Current and voltage characteristic shows that charge injection could enhance current density 31%. In order to survey the effect of charge injection on dye loading condition, absorption spectroscopy has been used. Spectroscopy analysis reveals that proposed method could increase dye capacity 48% in nanoporous photoanode. M3 ER -