scholarly journals Crystallization in one-step solution deposition of perovskite films: Upward or downward?

2021 ◽  
Vol 7 (4) ◽  
pp. eabb2412
Author(s):  
Shangshang Chen ◽  
Xun Xiao ◽  
Bo Chen ◽  
Leah L. Kelly ◽  
Jingjing Zhao ◽  
...  
Keyword(s):  
Intermediate Phase ◽  
Perovskite Solar Cells ◽  
Vertical Direction ◽  
Grazing Incidence ◽  
Fundamental Question ◽  
Solution Deposition ◽  
Residual Solvent ◽  
Solution Processes ◽  
One Step ◽  
Bottom To Top

Despite the fast progress of perovskite photovoltaic performances, understanding the crystallization and growth of perovskite films is still lagging. One unanswered fundamental question is whether the perovskite films are grown from top (air side) to bottom (substrate side) or from bottom to top despite 10 years of development. Here, by using grazing incidence x-ray diffraction and morphology characterizations, we unveil that the perovskite films prepared by one-step solution processes, including antisolvent-assisted spin coating and blade coating, follow the downward growth from intermediate phase during thermal annealing. Such a top-to-bottom downward growth is initialized by the evaporation of residual solvent from the top surface of “wet” films and is less sensitive to perovskite compositions and the wettability of underlying substrates. Addressing this fundamental question is important to understand the heterogeneity of perovskite films along the vertical direction, which markedly affects the efficiency and stability of perovskite solar cells.

One-step solution deposition of CsPbBr3 based on precursor engineering for efficient all-inorganic perovskite solar cells

2019 ◽  
Vol 7 (39) ◽  
pp. 22420-22428 ◽  
Author(s):  
Dewei Huang ◽  
Pengfei Xie ◽  
Zhenxiao Pan ◽  
Huashang Rao ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Solution Deposition ◽  
Inorganic Perovskite ◽  
One Step ◽  
Novel Strategy ◽  
Precursor Engineering

A novel strategy of adopting cesium acetate and methylammonium acetate increases the concentration of CsPbBr3 precursor solution assisting one-step deposition.

Morphology-controlled CH3NH3PbI3films by hexane-assisted one-step solution deposition for hybrid perovskite mesoscopic solar cells with high reproductivity

2015 ◽  
Vol 3 (45) ◽  
pp. 22839-22845 ◽  
Author(s):  
Na Lin ◽  
Juan Qiao ◽  
Haopeng Dong ◽  
Fusheng Ma ◽  
Liduo Wang
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Deposition ◽  
Hybrid Perovskite ◽  
One Step ◽  
And Performance

Morphology-controlled perovskite films were realized byn-hexane to promote crystallization of CH3NH3PbI3, thus improving their thermal stability and performance of the perovskite solar cells.

Study of perovskite solar cells based on mixed-organic-cation FAxMA1−xPbI3 absorption layer

2019 ◽  
Vol 21 (22) ◽  
pp. 11822-11828 ◽  
Author(s):  
Yufeng Yang ◽  
Jundong Luo ◽  
Aixiang Wei ◽  
Jun Liu ◽  
Yu Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Cation ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Deposition Method ◽  
Solution Deposition ◽  
Absorption Layer ◽  
One Step

Mixed-organic-cation FAxMA1−xPbI3 films were prepared using a one-step solution deposition method in ambient air.

Residual solvent extraction via chemical displacement for efficient and stable perovskite solar cells

2021 ◽  
Vol 61 ◽  
pp. 8-14
Author(s):  
Min Fang ◽  
Lei Tao ◽  
Wen Wu ◽  
Qi Wei ◽  
Yingdong Xia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solvent Extraction ◽  
Perovskite Solar Cells ◽  
Residual Solvent

Enhanced electrical conductivity of Au–LaNiO3 nanocomposite thin films by chemical solution deposition

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 76783-76787 ◽  
Author(s):  
H. L. Wang ◽  
X. K. Ning ◽  
Z. J. Wang
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Electrical Properties ◽  
Chemical Solution Deposition ◽  
Nanocomposite Films ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Nanocomposite Thin Films ◽  
One Step

Au–LaNiO3 (Au–LNO) nanocomposite films with 3.84 at% Au were firstly fabricated by one-step chemical solution deposition (CSD), and their electrical properties were investigated.

A Key 2D Intermediate Phase for Stable High‐Efficiency CsPbI 2 Br Perovskite Solar Cells

2021 ◽  
pp. 2103019
Author(s):  
Shaomin Yang ◽  
Jialun Wen ◽  
Zhike Liu ◽  
Yuhang Che ◽  
Jie Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Intermediate Phase ◽  
Perovskite Solar Cells

Characteristics of Perovskite Solar Cells with Methylammonium Iodide-Added Anti-Solvent

2021 ◽  
Vol 21 (8) ◽  
pp. 4367-4371
Author(s):  
Sung Hwan Joo ◽  
Il Tae Kim ◽  
Hyung Wook Choi
Keyword(s):  
Solar Cell ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Step Method ◽  
Electron Hole ◽  
Perovskite Layer ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
One Step ◽  
Hole Recombination

The perovskite film—manufactured via a one-step method—was superficially improved through an anti-solvent process to increase solar cell efficiency. Although perovskite synthesis proceeds rapidly, a significant amount of lead iodide residue remains. Well-placed lead iodide in perovskite grains prevents electron–hole recombination; however, when irregularly placed, it interferes with the movement of electron and holes. In this study, we focused on improving the crystallinity of the perovskite layer, as well as reducing lead iodide residues by adding a methylammonium halide material to the anti-solvent. Methylammonium iodide in chlorobenzene used as an anti-solvent reduces lead iodide residues and improves the crystallinity of formamidinium lead iodide perovskite. The improved crystallinity of the perovskite layer increased the absorbance and, with reduced lead iodide residues, increased the efficiency of the perovskite solar cell by 1.914%.

scholarly journals One step facile synthesis of a novel anthanthrone dye-based, dopant-free hole transporting material for efficient and stable perovskite solar cells

2018 ◽  
Vol 6 (14) ◽  
pp. 3699-3708 ◽  
Author(s):  
Hong Duc Pham ◽  
Kazuma Hayasake ◽  
Jinhyun Kim ◽  
Thu Trang Do ◽  
Hiroyuki Matsui ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Facile Synthesis ◽  
Free Hole ◽  
Hole Transporting ◽  
One Step ◽  
Hole Transporting Material

A new dopant free stable HTM using anthanthrone dye has been reported with 11.5% efficiency.

Structural, optical and magnetic tunability in KBiFe2O5 multiferroics

RSC Advances ◽  
2015 ◽  
Vol 5 (100) ◽  
pp. 82351-82356 ◽  
Author(s):  
X. Z. Zhai ◽  
H. M. Deng ◽  
W. L. Zhou ◽  
P. X. Yang ◽  
J. H. Chu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thermal Treatment ◽  
Perovskite Solar Cells ◽  
Treatment Method ◽  
One Step

KBiFe2O5, a highly promising multiferroic for perovskite solar cells, has been fabricated using a one-step thermal treatment method.

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