Enhancing the structural and optoelectronic properties of double ETL nickel-doped CsPbIBr2 perovskite solar cells

被引：15

作者：

Khan, M. I. ^{[1
]}

Mujtaba, Ali ^{[1
]}

Dahshan, A. ^{[2
]}

Khan, Shahbaz Ahmed ^{[3
]}

Boota, Muhammad ^{[1
]}

Laref, A. ^{[4
]}

Elqahtani, Zainab Mufarreh ^{[5
]}

Alwadai, Norah ^{[5
]}

机构：

[1] Univ Lahore, Dept Phys, Lahore 53700, Punjab, Pakistan

[2] King Khalid Univ, Coll Sci, Dept Phys, Abha 61413, Saudi Arabia

[3] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China

[4] King Saud Univ, Coll Sci, Dept Phys & Astron, Riyadh 11451, Saudi Arabia

[5] Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia

来源：

CRYSTENGCOMM | 2024年 / 26卷 / 26期

关键词：

THIN-FILMS; EFFICIENCY; PERFORMANCE;

D O I：

10.1039/d4ce00300d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structural, optoelectronic, and photovoltaic properties of CsPbIBr2 perovskite films were significantly enhanced by incorporating 4% Ni doping and utilizing a double electron transport layer (ETL) consisting of titanium dioxide (TiO2) and nickel-doped tungsten trioxide (Ni-WO3). X-ray diffraction (XRD) analysis of perovskite film revealed an increase in crystal size from 29.9 nm to 55.2 nm and a decrease in lattice constant from 6.024 & Aring; to 6.012 & Aring; upon Ni doping, indicating improved crystallinity. The energy bandgap of pure and Ni-CsPbIBr2 decreased from 2.0 eV to 1.94 eV, respectively, enhancing light absorption efficiency. The refractive index of pure and Ni-CsPbIBr2 increased from 2.625 to 2.645, respectively, enhancing light trapping and absorption. J-V measurements showed an efficiency increase from 12.26% to 12.96% with the introduction of a double ETL, demonstrating significant advancements in perovskite solar cell performance.

引用

页码：3535 / 3546

页数：12

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