The synergistic effect of H2O and DMF towards stable and 20% efficiency inverted perovskite solar cells

2017 ◽  
Vol 10 (3) ◽  
pp. 808-817 ◽  
Author(s):  
Chien-Hung Chiang ◽  
Mohammad Khaja Nazeeruddin ◽  
Michael Grätzel ◽  
Chun-Guey Wu
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Synergistic Effect ◽  
Film Thickness ◽  
Spin Coating ◽  
Perovskite Solar Cells ◽  
Lateral Size ◽  
High Quality ◽  
Coating Method ◽  
Vapor Treatment

A high quality thick (500 nm) CH3NH3PbI3perovskite absorber with a horizontal grain size up to 3 μm and a lateral size equal to the film thickness was prepared by the synergistic effect of a H2O additive and DMF vapor treatmentviaa two-step spin coating method.

Highly efficient CsPbIBr2 perovskite solar cells with efficiency over 9.8% fabricated using a preheating-assisted spin-coating method

2019 ◽  
Vol 7 (32) ◽  
pp. 19008-19016 ◽  
Author(s):  
Yuxiao Guo ◽  
Xingtian Yin ◽  
Jie Liu ◽  
Wenxiu Que
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Perovskite Solar Cells ◽  
High Quality ◽  
Spin Coating Method ◽  
Highly Efficient ◽  
Coating Method ◽  
One Step

An efficient and facile one-step spin-coating method assisted by a preheating process was applied for the fabrication of high-quality CsPbIBr2 films.

Effect of bidentate and tridentate additives on the photovoltaic performance and stability of perovskite solar cells

2019 ◽  
Vol 7 (9) ◽  
pp. 4977-4987 ◽  
Author(s):  
Jiangzhao Chen ◽  
Seul-Gi Kim ◽  
Xiaodong Ren ◽  
Hyun Suk Jung ◽  
Nam-Gyu Park
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
High Quality

Fabrication of high-quality perovskite films with a large grain size and fewer defects is always crucial to achieve efficient and stable perovskite solar cells (PSCs).

scholarly journals Efficient Ag-Doped Perovskite Solar Cells Fabricated in Ambient Air

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1521
Author(s):  
Jiabin Hao ◽  
Zeming Wang ◽  
Huiying Hao ◽  
Guanlei Wang ◽  
Hongcheng Gao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Nucleation Density ◽  
Perovskite Material ◽  
Coating Method ◽  
One Step ◽  
Improved Performance

So far, it is still a great challenge to prepare high efficiency organic–inorganic perovskite solar cells in ambient air. Specifically, moisture is easily combined with the perovskite material during the spin-coating process, which result in porous perovskite films with poor surface morphology. In this study, we investigated crystalline Ag-doped perovskite films by a one-step spin-coating method in air with 30–40% relative humidity (RH), in which ethyl acetate (EA) was used as antisolvent can absorb moisture in air to reduced nucleation density. More significantly, EA is a feasible and environmentally friendly solvent to replace highly toxic solvent. Moreover, 1.0% Ag-doped device shows a highest power conversion efficiency (PCE) of 14.36%. The improved performance is not only ascribed to the superior CH3NH3PbI3 film with high crystallinity but to the versatile tunability of energy band structure.

scholarly journals Enhanced Perovskite Solar Cell Performance by Adding Magnesium Acetate Using Two-Step Spin-Coating Method

2021 ◽  
Vol 927 (1) ◽  
pp. 012001
Author(s):  
D A Yusra ◽  
N Mufti ◽  
A F Muyasaroh ◽  
E Latifah
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Perovskite Solar Cells ◽  
Crystallization Rate ◽  
Lattice Parameter ◽  
Solar Simulator ◽  
Perovskite Layer ◽  
Solar Cell Performance ◽  
Coating Method ◽  
The Stability

Abstract The poor stability of perovskite materials is a problem of concern in commercialization. In this study, we investigated the doping of magnesium cations (Mg2+) in PbI2 to improve the stability and efficiency of perovskite solar cells. The doping effect of Mg2+ can increase the crystallization rate. The perovskite film fabricated structure consists of ITO/TiO2/perovskite/CuO. The fabrication method used is a two-stage spin coating. The concentrations of MgAc2 were used 0, 0.75, 1, and 1.25 mg ml−1. The characterizations used are XRD (X-Ray Diffraction), UV-Vis, SEM-EDX. While the performance of solar cells is measured using a solar simulator. The XRD pattern shows that the sample has a crystal structure of MAPbI3, PbI2, and CuO phases. The MAPbI3 lattice parameter increased with increasing Mg acetate concentration. The grain size of the perovskite layer is between 5 - 15 μm, with a thickness of about 30 μm. The efficiency of perovskite solar cells increases with the increasing concentration of MgAc2.

Organic solvent vapor treatment of lead iodide layers in the two-step sequential deposition of CH3NH3PbI3-based perovskite solar cells

2016 ◽  
Vol 4 (5) ◽  
pp. 1947-1952 ◽  
Author(s):  
M. I. El-Henawey ◽  
Ryan S. Gebhardt ◽  
M. M. El-Tonsy ◽  
Sumit Chaudhary
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Organic Solvent ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Solvent Vapor ◽  
Sequential Deposition ◽  
Vapor Treatment

The two step sequential deposition of CH3NH3PbI3-based perovskite solar cells has been modified by applying toluene and chlorobenzene vapors during the preparation of PbI2 films leading to the growth of the PbI2 grain size.

DMF as an Additive in a Two-Step Spin-Coating Method for 20% Conversion Efficiency in Perovskite Solar Cells

2017 ◽  
Vol 9 (32) ◽  
pp. 26937-26947 ◽  
Author(s):  
Jionghua Wu ◽  
Xin Xu ◽  
Yanhong Zhao ◽  
Jiangjian Shi ◽  
Yuzhuan Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Spin Coating ◽  
Perovskite Solar Cells ◽  
Spin Coating Method ◽  
Coating Method
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