The effect of bis-carboxylic groups of squarylium dyes on the efficiency of dye-sensitized solar cells
作者:Sultan A. Al-horaibi、Eman M. Garoon、Narendra A. Bhise、Suresh T. Gaikwad、Anjali S. Rajbhoj
DOI:10.1007/s11696-019-00978-5
日期:2020.6
TiO2, resulting in improved dye-sensitized solar cell efficiency compared to SQIND2. Hence, the SQIND1 sensitized exhibit better photovoltaic performance. Although, the absence of any linker groups in the SQIND1, then SQIND1 was perfect efficiently sensitized on porous TiO2 with the long UV–Vis and NIR region up to 800 nm of the spectrum and showed higher remarkable performance of values, such as η
合成了具有双羧基的对称方酸染料(SQIND1),并与非官能化的类似物基团(SQIND2)进行了比较,研究了光电化学性质。实验结果表明,在SQIND1敏化剂中引入锚定羧基可与纳米颗粒TiO 2更紧密地接触,从而增加了从SQIND1转移至半导体的电荷载流子的数量。理论计算和吸光度结果表明,SQIND1的LUMO电子密度在整个发色团中都离域化,从而导致SQIND1敏化剂与TiO 2导带之间的强电子耦合。与SQIND2相比,可提高染料敏化太阳能电池的效率。因此,敏化的SQIND1表现出更好的光伏性能。虽然,由于没有在SQIND1任何连接基团,然后SQIND1是完美的有效敏化的多孔的TiO 2与长紫外-可见和NIR区域到光谱为800nm和显示值的更高显着的性能,如η的3.3%,J sc为7.6mA / cm 2,V oc为0.59,FF为0.73。