Magnesium doped TiO2 as an efficient electron transport layer in perovskite solar cells

被引：34

作者：

Arshad, Zafar ^{[1
]}

Khoja, Asif Hussain ^{[2
]}

Shakir, Sehar ^{[2
]}

Afzal, Asif ^{[3
]}

Mujtaba, M. A. ^{[4
]}

Soudagar, Manzoore Elahi M. ^{[5
]}

Fayaz, H. ^{[6
]}

Saleel, C. Ahamed ^{[7
]}

Farukh, Sarah ^{[1
]}

Saeed, Mudassar ^{[2
]}

机构：

[1] Natl Univ Sci & Technol NUST, Sch Chem & Mat Engn SCME, Sect H-12, Islamabad 44000, Pakistan

[2] Natl Univ Sci & Technol NUST, US Pakistan Ctr Adv Studies Energy USPCAS E, Sect H-12, Islamabad 44000, Pakistan

[3] Visvesvaraya Technol Univ Belagavi, PA Coll Engn, Dept Mech Engn, Belagavi 574153, Mangaluru, India

[4] Univ Engn & Technol, Dept Mech Engn, New Campus, Lahore, Pakistan

[5] Glocal Univ, Dept Mech Engn, Delhi Yamunotri Marg SH-57, Mirzapur Pole 247121, Uttar Pradesh, India

[6] Ton Duc Thang Univ, Fac Elect & Elect Engn, Modeling Evolutionary Algorithms Simulat & Artifi, Ho Chi Minh City, Vietnam

[7] King Khalid Univ, Coll Engn, Dept Mech Engn, POB 394, Abha 61421, Saudi Arabia

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2021年 / 26卷

关键词：

Magnesium; Photovoltaics; Bandgap; Perovskite solar cell; Mesoporous TiO2; PERFORMANCE IMPROVEMENT; FILMS; NANOPARTICLES; CA;

D O I：

10.1016/j.csite.2021.101101

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Perovskite solar cells (PSCs) are rapidly emerging as efficient solar cells due to the efficient photovoltaic and physiochemical properties. Ideally, the absorber layer in PSCs is sandwiched between highly conductive electron transport layer (ETL) and highly stable hole transport layer (HTL). The interfaces between these layers highly affect the performance of PSCs. In this study Magnesium (Mg) doped TiO2 based ETL is systematically investigated to enhance the optical and morphological properties of the layer and the interface. It was observed that with Mg doping in mesoporous TiO2, morphology of TiO2 based ETL film was significantly improved thereby providing an interface for the growth of absorber layer. Optoelectronic studies suggested that band gap was effectively reduced with the addition of Mg and absorption range was also enhanced. Electrical analysis yielded, Mg doped TiO2 based ETL showed enhanced conduction and better sheet carrier mobility as compared to undoped films. Thermal studies indicate fabrication of a thermally stable ETL material for PSCs. Moreover, Current density-Voltage (J-V) measurements indicated more than two-fold increase in photovoltaic efficiency of 3 wt% Mg.

引用

页数：12

共 35 条

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