Dimethyl Sulfoxide Solvent Engineering for High Quality Cation-Anion-Mixed Hybrid and High Efficiency Perovskite Solar Cells

2019 ◽  
Vol 7 (2) ◽  
pp. 346-351 ◽  
Author(s):  
X. He ◽  
J. Wu ◽  
T. Wu ◽  
Z. Lan ◽  
M. Huang
Keyword(s):  
Solar Cells ◽  
Dimethyl Sulfoxide ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
High Quality ◽  
Solvent Engineering

High efficiency planar Sn–Pb binary perovskite solar cells: controlled growth of large grains via a one-step solution fabrication process

2017 ◽  
Vol 5 (9) ◽  
pp. 2360-2367 ◽  
Author(s):  
Lingang Li ◽  
Fan Zhang ◽  
Yuying Hao ◽  
Qinjun Sun ◽  
Zhanfeng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Butyl Alcohol ◽  
Step Method ◽  
High Quality ◽  
Solvent Engineering ◽  
Solvent Annealing ◽  
Alcohol Solvent ◽  
One Step

A well-controlled one-step method, assisted by sec-butyl alcohol solvent engineering and N,N-dimethylformamide solvent annealing under an N2 atmosphere, is developed for the growth of a high quality CH3NH3Pb(1−x)SnxI3 perovskite film.

Two-step sequential blade-coating of high quality perovskite layers for efficient solar cells and modules

2020 ◽  
Vol 8 (17) ◽  
pp. 8447-8454 ◽  
Author(s):  
Junwen Zhang ◽  
Tongle Bu ◽  
Jing Li ◽  
Hengyi Li ◽  
Yanping Mo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Coating Process ◽  
High Quality ◽  
Blade Coating

A two-step sequential blade-coating process in air to fabricate high-efficiency perovskite solar cells and modules.

scholarly journals Hot-Casting Large-Grain Perovskite Film for Efficient Solar Cells: Film Formation and Device Performance

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Kejun Liao ◽  
Chengbo Li ◽  
Lisha Xie ◽  
Yuan Yuan ◽  
Shurong Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Film Formation ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Deposition Process ◽  
Precursor Chemistry ◽  
High Quality ◽  
Factors Affecting ◽  
Casting Technique

AbstractOrganic–inorganic metal halide perovskite solar cells (PSCs) have recently been considered as one of the most competitive contenders to commercial silicon solar cells in the photovoltaic field. The deposition process of a perovskite film is one of the most critical factors affecting the quality of the film formation and the photovoltaic performance. A hot-casting technique has been widely implemented to deposit high-quality perovskite films with large grain size, uniform thickness, and preferred crystalline orientation. In this review, we first review the classical nucleation and crystal growth theory and discuss those factors affecting the hot-casted perovskite film formation. Meanwhile, the effects of the deposition parameters such as temperature, thermal annealing, precursor chemistry, and atmosphere on the preparation of high-quality perovskite films and high-efficiency PSC devices are comprehensively discussed. The excellent stability of hot-casted perovskite films and integration with scalable deposition technology are conducive to the commercialization of PSCs. Finally, some open questions and future perspectives on the maturity of this technology toward the upscaling deposition of perovskite film for related optoelectronic devices are presented.

Enhanced Efficiency of Halide Perovskite Solar Cells by Solvent Engineering

2020 ◽  
Vol 15 (2) ◽  
pp. 243-249
Author(s):  
Xibin Liu ◽  
Jiayou Tao ◽  
Gaohua Liao ◽  
Zhijun Zou ◽  
Fen Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Composition ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Polar Molecules ◽  
High Quality ◽  
Solvent Engineering ◽  
Temperature Solution

During the process of the low-temperature solution fabrication, it always leads to high defects density at the grain boundaries and the interfaces, which are great barriers toward excellent solar cells. Different polar molecules of solvents are brought in to modify the surface composition by tuning the nucleation densities to obtain perovskite films with high crystallization quality. In this work, with efficiently exchanging intramolecular mechanism, high-quality MAPbI3-based perovskite films had been conveniently fabricated. Two kinds of polar molecules of dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP) were added to the dimethylformamide (DMF) solvent to result in perovskite films with high quality. As a result, the device with NMP solvent treatment outputs improved efficiency of 18.5% at the short-circuit current (Jsc) of 23.3 mA cm–2, with an open-circuit voltage (Voc) of 1.075 V and a fill factor of 77.1% under standard AM 1.5 solar illumination. This method of solvent engineering might provide a convenient way for the application of perovskite-based photovoltaic devices.

scholarly journals Ambient processed (110) preferred MAPbI3 thin films for highly efficient perovskite solar cells

2021 ◽  
Vol 3 (7) ◽  
pp. 2056-2064
Author(s):  
Rui Guo ◽  
Biplav Dahal ◽  
Arun Thapa ◽  
Yuba Raj Poudel ◽  
Yunyan Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Crystal Orientation ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
High Quality ◽  
Highly Efficient

A methylamine-gas-mediated perovskite precursor resulted in high-quality MAPbI3 films featuring a (110) preferred crystal orientation. Planar PSC devices fabricated using the MA-gas-mediated precursor showed a high efficiency of 19.28%.

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