Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO2) as Photoanode in Dye Sensitized Solar Cells

被引：6
作者：
Ahmad, Awais [1 ]
Khan, Safia [2 ]
Khan, Mariam [3 ]
Luque, Rafael [1 ]
Jalalah, Mohammed [4 ,5 ]
Alsaiari, Mabkhoot A. [4 ,6 ]
机构：
[1] Univ Cordoba, Dept Quim Organ, Edificio Marie Curie C-3,Ctra Nnal 4-A,Km 396, E-14014 Cordoba 396, Spain
[2] Quaid I Azam Univ, Dept Chem, Islamabad 43520, Pakistan
[3] Natl Univ Technol, Sch Appl Sci & Humanity NUSASH, Islamabad 44000, Pakistan
[4] Najran Univ, Promising Ctr Sensors & Elect Devices PCSED, Adv Mat & Nanores Ctr, Najran 11001, Saudi Arabia
[5] Najran Univ, Fac Engn, Dept Elect Engn, Najran 11001, Saudi Arabia
[6] Najran Univ, Coll Sci & Art Sharurah, Dept Chem, Empty Quarter Res Unit, Najran 11001, Saudi Arabia
来源：
APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 18期
关键词：
photoanode; dye-sensitized solar cell; nanoparticles; microwave synthesis; PHOTOCATALYTIC PERFORMANCE; CATALYTIC PERFORMANCE; TIO2; PHOTOCATALYST; BAND-GAP; CO; PHOTODEGRADATION; ENHANCEMENT; TEMPERATURE; ABSORPTION; OXIDATION;
D O I：
10.3390/app12189280
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Pure TiO2 and barium (0.5 wt%) doped TiO2 (Ba/TiO2) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of synthesized photoactive material was confirmed by X-ray diffraction. Ba doping in the TiO2 host structure influenced the optical band gap as confirmed by UV-visible spectroscopy. The optical band gap increased from 3.21 eV for the TiO2 to 3.26 eV for Ba/TiO2. Morphological analysis of synthesized TiO2 and Ba/TiO2 was conducted using scanning electron microscopy. Energy dispersive X-ray spectroscopy confirmed the formation of Ba/TiO2 and no impurities were observed. Electrochemical impedance spectroscopy showed that the charge transfer resistance increased for Ba/TiO2, which reduced dark current creation in a dye-sensitized solar cell. The highest power conversion efficiency (3.24%) was achieved for Ba/TiO2 photoanode compared to 2.1% for a pure TiO2 photoanode-based device.
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页数：11
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