scholarly journals Solubility of Hybrid Halide Perovskites in DMF and DMSO

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7541
Author(s):  
Andrey A. Petrov ◽  
Artem A. Ordinartsev ◽  
Sergey A. Fateev ◽  
Eugene A. Goodilin ◽  
Alexey B. Tarasov
Keyword(s):  
Solar Cells ◽  
Solubility Data ◽  
Processing Conditions ◽  
Solubility Behavior ◽  
Halide Anions ◽  
Solution Methods ◽  
Donor Numbers ◽  
Halide Perovskites

Solution methods remain the most popular means for the fabrication of hybrid halide perovskites. However, the solubility of hybrid perovskites has not yet been quantitively investigated. In this study, we present accurate solubility data for MAPbI3, FAPbI3, MAPbBr3 and FAPbBr3 in the two most widely used solvents, DMF and DMSO, and demonstrate huge differences in the solubility behavior depending on the solution compositions. By analyzing the donor numbers of the solvents and halide anions, we rationalize the differences in the solubility behavior of hybrid perovskites with various compositions, in order to take a step forward in the search for better processing conditions of hybrid perovskites for solar cells and optoelectronics.

First-principles study on the electronic and optical properties of the orthorhombic CsPbBr3 and CsPbI3 with Cmcm space group

2021 ◽  
Author(s):  
Xianhao Zhao ◽  
Tianyu Tang ◽  
Quan Xie ◽  
like gao ◽  
Limin Lu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
First Principles ◽  
Energy Conversion Efficiency ◽  
Space Group ◽  
Absorbing Materials ◽  
Halide Perovskites ◽  
Lead Halide

The cesium lead halide perovskites are regarded as effective candidates for light-absorbing materials in solar cells, which have shown excellent performances in experiments such as promising energy conversion efficiency. In...

scholarly journals Photostable and Uniform CH3NH3PbI3 Perovskite Film Prepared via Stoichiometric Modification and Solvent Engineering

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 405
Author(s):  
Daocheng Hong ◽  
Mingyi Xie ◽  
Yuxi Tian
Keyword(s):  
Solar Cells ◽  
Optoelectronic Devices ◽  
Solvent Engineering ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Coverage Ratio ◽  
Fabrication Procedure ◽  
Fabrication Condition ◽  
Halide Perovskites ◽  
Photoluminescence Efficiency

Solution-processed organometal halide perovskites (OMHPs) have been widely used in optoelectronic devices, and have exhibited brilliant performance. One of their generally recognized advantages is their easy fabrication procedure. However, such a procedure also brings uncertainty about the opto-electric properties of the final samples and devices, including morphology, stability, coverage ratio, and defect concentration. Normally, one needs to find a balanced condition, because there is a competitive relation between these parameters. In this work, we fabricated CH3NH3PbI3 films by carefully changing the ratio of the PbI2 to CH3NH3I, and found that the stoichiometric and solvent engineering not only determined the photoluminescence efficiency and defects in the materials, but also affected the photostability, morphology, and coverage ratio. Combining solvent engineering and the substitution of PbI2 by Pb(Ac)2, we obtained an optimized fabrication condition, providing uniform CH3NH3PbI3 films with both high photoluminescence efficiency and high photostability under either I-rich or Pb-rich conditions. These results provide an optimized fabrication procedure for CH3NH3PbI3 and other OMHP films, which is crucial for the performance of perovskite-based solar cells and light emitting devices.

A Review on Stability of Inorganic Metal Halide Perovskites: Challenge and Opportunity for Stable Solar Cells

2021 ◽  
Author(s):  
Wanchun Xiang ◽  
Shengzhong Liu ◽  
Wolfgang Tress
Keyword(s):  
Solar Cells ◽  
High Temperature ◽  
Metal Halide ◽  
Inorganic Perovskite ◽  
The Past ◽  
Intrinsic Stability ◽  
Halide Perovskites

Inorganic perovskite based solar cells (PSCs) have been receiving unprecedented attention worldwide in the past several years due to their higher intrinsic stability towards high temperature and high theoretical power...

Structural and optoelectronic properties of hybrid halide perovskites for solar cells

2021 ◽  
Vol 91 ◽  
pp. 106077
Author(s):  
Faiza Jan Iftikhar ◽  
Qamar Wali ◽  
Shengyuan Yang ◽  
Yaseen Iqbal ◽  
Rajan Jose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Optoelectronic Properties ◽  
Halide Perovskites ◽  
Structural And Optoelectronic Properties
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