Passivation and process engineering approaches for high stability perovskite solar cells

Author(s):  
Abdul Rashid Bin Mohd Yusoff ◽  
Maria Vasilopoulou ◽  
Dimitra Georgiadou ◽  
Leonidas C. Palilis ◽  
Antonio Abate ◽  
...  

The surface, interfaces and grain boundaries of a halide perovskite film carry critical tasks in achieving as well as maintaining high solar cell performance due to the inherently defective nature...

2021 ◽  
Author(s):  
Sahel Gozalzadeh ◽  
Farzad Nasirpouri ◽  
Sang Il Seok

Abstract Organic-inorganic hybrid perovskite is the most promising active layer for new generation of solar cells. Despite of highly efficient perovskite active layer conventionally fabricated by spin coating methods, the need for using toxic solvents like dimethylformamide (DMF) required for dissolving low soluble metal precursors as well as the difficulties for upscaling the process have restricted their practical development. To deal with these shortcomings, in this work, lead sulphide as the lead metal precursor was produced by aqueous chemical bath deposition. PbS films were subsequently chemically converted to PbI2 and finally to mixed-cation mixed halide perovskite films. The microstructural, optical and solar cell performance of mixed cation mixed halide perovskite films were exploited. Results show that controlling the morphology of PbI2 platelets achieved from PbS precursor films enabled efficient conversion to perovskite. Using this processing technique, smooth and pin hole-free perovskite films having columnar grains of about 800 nm and a bandgap of 1.55 eV were produced. The solar cell performance consisting of such perovskite layers gave rise to a notable power conversion efficiency of 11.35% under standard solar conditions. The proposed processing technique is a very promising environmentally friendly method for the production of large-scale high efficient perovskite solar cells.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sahel Gozalzadeh ◽  
Farzad Nasirpouri ◽  
Sang Il Seok

AbstractOrganic–inorganic hybrid perovskite is the most promising active layer for new generation of solar cells. Despite of highly efficient perovskite active layer conventionally fabricated by spin coating methods, the need for using toxic solvents like dimethylformamide (DMF) required for dissolving low soluble metal precursors as well as the difficulties for upscaling the process have restricted their practical development. To deal with these shortcomings, in this work, lead sulphide as the lead metal precursor was produced by aqueous chemical bath deposition. Subsequently, PbS films were chemically converted to PbI2 and finally to mixed-cation mixed halide perovskite films. The microstructural, optical and solar cell performance of mixed cation mixed halide perovskite films were examined. Results show that controlling the morphology of PbI2 platelets achieved from PbS precursor films enabled efficient conversion to final perovskite films. Using this processing technique, smooth and pin hole-free perovskite films having columnar grains of about 800 nm and a bandgap of 1.55 eV were produced. The solar cell performance consisting of such perovskite layers gave rise to a notable power conversion efficiency of 11.35% under standard solar conditions. The proposed processing technique is very promising towards an environmentally friendly method for the production of large-scale high efficient perovskite solar cells.


2017 ◽  
Vol 5 (38) ◽  
pp. 20327-20333 ◽  
Author(s):  
Ying-Ke Ren ◽  
Xi-Hong Ding ◽  
Ya-Han Wu ◽  
Jun Zhu ◽  
Tasawar Hayat ◽  
...  

The nucleation stage has an important influence on the lead halide perovskite film morphology, and therefore the solar cell performance.


Author(s):  
Hung-Cheng Chen ◽  
Jie-Min Lan ◽  
Hsiang-Lin Hsu ◽  
Chia-Wei Li ◽  
Tien-Shou Shieh ◽  
...  

Three different benzylammonium halide (Cl, Br, and I) salts were investigated to elucidate their effects as additives on MAPbI3 perovskite surface morphology, crystal structure, optical properties, and solar cell performance and stability.


2018 ◽  
Vol 6 (32) ◽  
pp. 15853-15858 ◽  
Author(s):  
Pengfei Wang ◽  
Jiao Wang ◽  
Xin Zhang ◽  
Haoliang Wang ◽  
Xiaolei Cui ◽  
...  

Potassium halides have recently garnered much attention, due to their improvement of perovskite solar cell performance.


2018 ◽  
Vol 6 (25) ◽  
pp. 6816-6822 ◽  
Author(s):  
Hongyuan Liu ◽  
Xiaorui Liu

A strategy to modulate the π-bridged units in bis(4-methoxyphenyl)amine-based molecules for improving the performance of perovskite solar cells was provided.


2017 ◽  
Vol 5 (16) ◽  
pp. 7423-7432 ◽  
Author(s):  
Lin Fan ◽  
Yi Ding ◽  
Jingshan Luo ◽  
Biao Shi ◽  
Xin Yao ◽  
...  

Chlorine incorporation and its configuration evolution during perovskite film formation were studied, as well as its effect on solar cell performance.


2017 ◽  
Vol 5 (34) ◽  
pp. 18044-18052 ◽  
Author(s):  
Shun-Hsiang Chan ◽  
Ming-Chung Wu ◽  
Kun-Mu Lee ◽  
Wei-Cheng Chen ◽  
Tzu-Hao Lin ◽  
...  

The power conversion efficiency of perovskite solar cells can be enhanced by using Ba2+-doped perovskite films.


2017 ◽  
Vol 5 (14) ◽  
pp. 6515-6521 ◽  
Author(s):  
Yu Cheng ◽  
Cong Chen ◽  
Xu Chen ◽  
Junjie Jin ◽  
Hao Li ◽  
...  

Metallic nanostructures are used to improve the perovskite solar cell performance by light scattering, and Au–Ag alloy nanostructures show a considerable enhancement.


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