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Fabrication of In doped ZnO thin films by spray pyrolysis as photoanode in DSSCs
Surfaces and Interfaces ( IF 6.2 ) Pub Date : 2021-01-24 , DOI: 10.1016/j.surfin.2021.100965
P. Dhamodharan , Jian Chen , C. Manoharan

Highly compact and transparent pristine ZnO and indium doped ZnO (IZO) thin films have been successfully deposited on ITO substrates and their performance as photoanode in DSSCs were investigated. The structural analysis confirmed the wurtzite structure of ZnO with preferential orientation (002). The FESEM images depicted the granular and porous structure for the pristine ZnO and the nanofiber network structure for the IZO thin films. The porous nature with smaller roughness measured by AFM was the essential factors for achieving high performance in photovoltaic applications. IZO films showed high optical transmittance in the visible region. A minimum resistivity of 1.22 × 10−3 Ω cm and highest electron concentration of 10.74 × 1019 cm3 were achieved for 1.5 at.% of In dopant. The photovoltaic performance of IZO as a photoanode in DSSCs showed the highest power conversion efficiency of 1.09%. The preparation temperature and the solvent used for the preparation of natural dye were optimized to increase the efficiency of the solar cell.



中文翻译:

DSSCs中以喷雾热解为光阳极制备In掺杂的ZnO薄膜

高度致密和透明的原始ZnO和铟掺杂的ZnO(IZO)薄膜已成功沉积在ITO基板上,并研究了它们在DSSC中作为光电阳极的性能。结构分析证实ZnO的纤锌矿结构具有优先取向(002)。FESEM图像描绘了原始ZnO的颗粒状和多孔结构以及IZO薄膜的纳米纤维网络结构。通过AFM测量的具有较小粗糙度的多孔性质是在光伏应用中实现高性能的必要因素。IZO膜在可见光区域显示出高透光率。最小电阻率为1.22×10 -3Ωcm,最高电子浓度为10.74×10 19 cm 3In掺杂剂的含量为1.5 at。%。在DSSC中,IZO作为光电阳极的光伏性能显示出最高的功率转换效率,为1.09%。优化了制备温度和用于制备天然染料的溶剂,以提高太阳能电池的效率。

更新日期:2021-02-01
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