Regulating crystalline phase of intermediate film enables FA1-xMAxPbI3 perovskite solar cells with efficiency over 22%

2021 ◽  
Author(s):  
Fazheng Qiu ◽  
Ming-Hua Li ◽  
Shuo Wang ◽  
Jia-Yi Sun ◽  
Yan Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Phase ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Great Success ◽  
Deposition Method ◽  
Sequential Deposition

The sequential deposition method has achieved great success in the preparation of high-performance perovskite solar cells. Nevertheless, the crystalline phase of the intermediate film which determines the quality of perovskite...

scholarly journals Sequential deposition method fabricating carbonbased fully-inorganic perovskite solar cells

2017 ◽  
Vol 61 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Xihong Ding ◽  
Yingke Ren ◽  
Yahan Wu ◽  
Yafeng Xu ◽  
Jun Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Deposition Method ◽  
Inorganic Perovskite ◽  
Sequential Deposition

Alkali-cation-enhanced benzylammonium passivation for efficient and stable perovskite solar cells fabricated through sequential deposition

2020 ◽  
Vol 8 (37) ◽  
pp. 19357-19366 ◽  
Author(s):  
Jie Cao ◽  
Junke Jiang ◽  
Nan Li ◽  
Yifan Dong ◽  
Yongheng Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Alkali Cation ◽  
Deposition Method ◽  
Sequential Deposition ◽  
Highly Efficient

Compositional perovskites were developed by a sequential deposition method for highly efficient and stable solar cells. The inclusion of alkali cation and benzylammonium showed synergistic passivation-effect and demonstrated 22.5% efficiency with over 1500 h stability.

Enhanced efficiency of planar perovskite solar cells via a two-step deposition using DMF as an additive to optimize the crystal growth behavior

2017 ◽  
Vol 5 (25) ◽  
pp. 13032-13038 ◽  
Author(s):  
Jiajie Mo ◽  
Chunfu Zhang ◽  
Jingjing Chang ◽  
Haifeng Yang ◽  
He Xi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
Polar Solvent ◽  
Perovskite Solar Cells ◽  
Growth Behavior ◽  
Deposition Method ◽  
High Quality ◽  
Sequential Deposition ◽  
Solvent Additive ◽  
Crystal Growth Behavior

We present a facile way towards the use of the polar solvent additive in the inter-diffusion two-step sequential deposition method for a high quality perovskite film.

scholarly journals Enhancing quality of CsPbIBr2 inorganic perovskite via cellulose acetate addition for high-performance perovskite solar cells

2022 ◽  
Vol 71 (1) ◽  
pp. 018802-018802
Author(s):  
Wang Gui-Qiang ◽  
◽  
Bi Jia-Yu ◽  
Liu Jie-Qiong ◽  
Lei Miao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Cellulose Acetate ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite

scholarly journals Preparing Ambient-Processed Perovskite Solar Cells with Better Electronic Properties via Preheating Assisted One-Step Deposition Method

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Xi Zhang ◽  
Wenyao Yang ◽  
Jingjing Qi ◽  
Yinggang Hu
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Inert Atmosphere ◽  
Ambient Condition ◽  
Water Molecules ◽  
Deposition Method ◽  
Fabrication Cost ◽  
One Step ◽  
Better Than

Abstract Although the power conversion efficiency (PCE) of perovskite solar cells (PSCs) increases rapidly, there are still some issues that limit their commercialization. The perovskite is sensitive to the water molecules, increasing the difficulty in the preparation of perovskite films in ambient condition. Most high-performance PSCs based on conventional method are required to be prepared in inert atmosphere condition, which increase the fabrication cost. To fabricate the high-quality perovskite in ambient condition, we preheated the substrates and selected the proper anti-solvent. As a result, the target perovskite films show a better crystallinity compared with perovskite film prepared via the conventional one-step deposition method in ambient condition. The PSCs prepared in ambient condition yield the improved PCE of 16.89% from a PCE of 11.59%. Compared with the reference devices, the performance stability of target PSCs is much better than that of reference PSCs.

scholarly journals Impact of Delay Time before Annealing MAI-PbI2-DMSO Intermediate Phase on Perovskite Film Quality and Photo-Physical Properties

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 151 ◽  
Author(s):  
Yujun Yao ◽  
Xiaoping Zou ◽  
Jin Cheng ◽  
Dan Chen ◽  
Chuangchuang Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Physical Properties ◽  
Delay Time ◽  
High Performance ◽  
Intermediate Phase ◽  
Perovskite Solar Cells ◽  
Device Performance ◽  
Perovskite Layer ◽  
The Impact

High-performance perovskite solar cells are strongly dependent on the quality of the perovskite layer. Two-step sequential deposition of CH3NH3PbI3 (MAPbI3) films is widely used to fabricate perovskite solar cells and many factors influence the quality of perovskite films, such as the delay time before annealing the MAI-PbI2-DMSO intermediate phase, which would impact the morphology and photo-physical properties of perovskite thin films. Here, the experimental research indicates that the impact of the delay time before annealing the MAI-PbI2-DMSO intermediate phase on the quality, crystallinity, and photo-physical properties of perovskite film is crucial. During the delay process, the delay time before annealing the MAI-PbI2-DMSO intermediate phase plays an important role in the nucleation process of perovskite grains inside the intermediate phase. With the extension of the delay time before annealing, the quality of the perovskite film deteriorates, thus the photo-physical properties change. We found that after the localized liquid–liquid diffusion of MAI and PbI2, with the extension of the delay time before annealing the MAI-PbI2-DMSO intermediate phase, the nucleation number of the perovskite grains increases and the grain size becomes smaller. Therefore, with the extension of the delay time before annealing, the device performance deteriorates.

scholarly journals A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 481
Author(s):  
Jinyu Wu ◽  
Lei Zhang ◽  
Qiao Kang ◽  
Hongxi Shi ◽  
Long Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Manufacturing Cost ◽  
Lead Iodide ◽  
Capping Layer ◽  
Sequential Deposition ◽  
Carbon Based

Carbon-based hole transport material (HTM)-free perovskite solar cells have exhibited a promising commercialization prospect, attributed to their outstanding stability and low manufacturing cost. However, the serious charge recombination at the interface of the carbon counter electrode and titanium dioxide (TiO2) suppresses the improvement in the carbon-based perovskite solar cells’ performance. Here, we propose a modified sequential deposition process in air, which introduces a mixed solvent to improve the morphology of lead iodide (PbI2) film. Combined with ethanol treatment, the preferred crystallization orientation of the PbI2 film is generated. This new deposition strategy can prepare a thick and compact methylammonium lead halide (MAPbI3) film under high-humidity conditions, which acts as a natural active layer that separates the carbon counter electrode and TiO2. Meanwhile, the modified sequential deposition method provides a simple way to facilitate the conversion of the ultrathick PbI2 capping layer to MAPbI3, as the light absorption layer. By adjusting the thickness of the MAPbI3 capping layer, we achieved a power conversation efficiency (PCE) of 12.5% for the carbon-based perovskite solar cells.

scholarly journals Effects of alkali and transition metal-doped TiO2 hole blocking layers on the perovskite solar cells obtained by a two-step sequential deposition method in air and under vacuum

RSC Advances ◽  
2020 ◽  
Vol 10 (22) ◽  
pp. 13139-13148 ◽  
Author(s):  
U. Nwankwo ◽  
Siphelo Ngqoloda ◽  
Agnes C. Nkele ◽  
Christopher J. Arendse ◽  
Kenneth I. Ozoemena ◽  
...  
Keyword(s):  
Solar Cells ◽  
Transition Metal ◽  
Perovskite Solar Cells ◽  
Good Choice ◽  
Deposition Method ◽  
Doped Tio2 ◽  
Sequential Deposition ◽  
Photovoltaic Applications ◽  
Metal Doped

Planar perovskite solar cells (PPSCs) have received great attention in recent years due to their intriguing properties, which make them a good choice for photovoltaic applications.

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