Enhanced performance of Mg and La co-doped TiO_(2)(98%)−ZrO_(2)(2%) photoanode for dye-sensitized solar cells  

作　　者：Doaa M.Atia Ninet M.Ahmed Ali A.Abou Hammad Marwa M.Toraya Amany M.El Nahrawy 

机构地区：[1]Photovoltaic Cells Department,Electronics Research Institute,Cairo 11843,Egypt [2]Solid-State Physics Department,Physics Research Division,National Research Centre,33 El-Bohouth Street,Dokki 12622,Egypt

出　　处：《Clean Energy》2024年第6期225-236,共12页清洁能源(英文)

摘　　要：This study explores the effects of magnesium(Mg)and lanthanum(La)doping on the performance of dye-sensitized solar cells(DSSCs)utilizing TiO_(2(98%))-ZrO_(2(2%))(TZ,TZM,and TZL)photoanodes.The photoanodes were fabricated using a spin-coating sol–gel method,followed by calcination at 400℃.The structural,morphological,crystallographic,and optical properties of the proposed photoanode composites were characterized by X-ray diffraction,transmission electron microscopy,and ultraviolet–visible spectroscopy.The crystallite sizes of the synthesized thin films varied from 21.16 to 59.04 nm for the TZ,TZM,and TZL compositions.The current–voltage measurements of DSSCs based on TZL8 photoanode,cobalt sulfide-doped graphene counter electrode,and N719 dye revealed the highest efficiency of nearly 5.052%.The assembled DSSCs exhibited an open-circuit voltage of 0.74 V,a short-circuit current density of 9.964 mA/cm^(2),and a fill factor of 0.685.The enhancement in open-circuit voltage and short-circuit current density could be attributed to the improved electronic and microstructures of the proposed photoanodes.

关 键 词：La-doped TZ Mg-doped TZ PHOTOANODE SOL-GEL DSSC photovoltaic performance 

分 类 号：TM9[电气工程—电力电子与电力传动]