N,N‑dimethylformamide vapor effect on microstructural and optical properties of CH3NH3PbI3 film during solvent annealing

Peng, Huizhen; Chen, Lan; Chen, Shutian; Fan, Ping; Liang, Guangxing; Lan, Huabin

doi:10.1016/j.surfcoat.2018.12.069

Cited by 16 publications

(16 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2b. A set [26][27][28]. From the figure, no peaks associated with remaining PbI 2 and other phases of perovskite were observed, signifying that the deposited thin films are in pure phase and crystalline in nature [29].…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Synthesis and characterization of MAPbI3 thin film and its application in C-Si/perovskite tandem solar cell

Jassim

Bakr

Mustafa³

2020

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Silicon, polymer and dye sensitized have been increasing rapidly in thin film of solar cells. Recently, perovskite is proposed as alternative material in the fabrication of solar cells. In this study, methyl ammonium lead triiodide (MAPbI 3 , CH 3 NH 3 PbI 3) perovskite thin film was prepared by two-step process of spin coating. The preparation process of thin film is summarized by reaction between the methyl ammonium iodide (CH 3 NH 3 I) and lead iodide (PbI 2). The absorbent layer of the prepared perovskite solar cell is based on the MAPbI 3 (CH 3 NH 3 PbI 3) thin film. The conversion efficiency of p-n silicon solar cells can be improved by preparing tandem solar cells. The X-ray diffraction result of the MAPbI 3 perovskite film manifested that it is polycrystalline with tetragonal system having a crystallite size of about 40 nm. The absorption spectrum of perovskite film was recorded by Ultra Violet-Visible spectrophotometer. The energy band gap of the MAPbI 3 film calculated by Tauc's formula was ~ 1.51 eV. The field emission scanning electron microscope image of the MAPbI 3 film surface elucidated a cubic-like crystal structure and other irregular structures also. The atomic force microscope image and the distribution chart of the grains of the film displayed that the grain size was ~ 58.7 nm. The results demonstrated that the conversion efficiency for silicon, perovskite and tandem (silicon/perovskite) solar cells are 3%, 4.83% and 7.42%, respectively.

show abstract

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Synthesis and characterization of MAPbI3 thin film and its application in C-Si/perovskite tandem solar cell

Jassim

Bakr

Mustafa³

2020

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…Compared with perovskites with multiple nano-grains, the solvent-annealed perovskite film has fewer grain boundaries, this facilitates a greater range of light absorption by the absorbing layer. The band-gap energy can be calculated as , where α is the absorption coefficient, hv is the photon energy, A is the constant, n depends on the nature of transition, and E is the band-gap energy 41 . Figure 7 shows that the band gap of the as-deposited thin film is 2.40 eV and decreases to 1.89 eV after solvent annealing, which is close to the theoretical value 42 .…”

Section: Resultsmentioning

confidence: 99%

Single Source Thermal Evaporation of Two-dimensional Perovskite Thin Films for Photovoltaic Applications

Zheng

Lan

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

Hybrid two-dimensional (2D) halide perovskites has been widely studied due to its potential application for high performance perovskite solar cells. Understanding the relationship between microstructural and opto-electronic properties is very important for fabricating high-performance 2D perovskite solar cell. In this work, the effect of solvent annealing on grain growth was investigated to enhance the efficiency of photovoltaic devices with 2D perovskite films based on (BA)2(MA)3Pb4I13 prepared by single-source thermal evaporation. Results show that solvent annealing with the introduction of solvent vapor can effectively enhance the crystallization of the (BA)2(MA)3Pb4I13 thin films and produce denser, larger-crystal grains. The thin films also display a favorable band gap of 1.896 eV, which benefits for increasing the charge-diffusion lengths. The solvent-annealed (BA)2(MA)3Pb4I13 thin-film solar cell prepared by single-source thermal evaporation shows an efficiency range of 2.54–4.67%. Thus, the proposed method can be used to prepare efficient large-area 2D perovskite solar cells.

show abstract

“…The DMF solvent-annealed perovskite films also displayed a more prominent carrier recombination effect in the grain boundaries, which might account for the greater improvement in photoconductivity in the grain plane than in the boundaries in solvent annealing [140]. The concentration of DMF vapor needed to be reasonably controlled, as the excessive DMF vapor was a challenge to the photovoltaic performance of the film [141]. DMF and DMSO have already become the most widely considered choices in many solvents due to their significant dissolution-recrystallization effects and their ease of removal from perovskite films [126,132,134,[139][140][141][142][143][144].…”

Section: Solvent Annealingmentioning

confidence: 99%

“…The concentration of DMF vapor needed to be reasonably controlled, as the excessive DMF vapor was a challenge to the photovoltaic performance of the film [141]. DMF and DMSO have already become the most widely considered choices in many solvents due to their significant dissolution-recrystallization effects and their ease of removal from perovskite films [126,132,134,[139][140][141][142][143][144]. DMSO solvent annealing also had an excellent ability to form grains with low defect density.…”

Section: Solvent Annealingmentioning

confidence: 99%

Annealing Engineering in the Growth of Perovskite Grains

Wang

Liu

et al. 2022

Crystals

View full text Add to dashboard Cite

Perovskite solar cells (PSCs) are a promising and fast-growing type of photovoltaic cell due to their low cost and high conversion efficiency. The high efficiency of PSCs is closely related to the quality of the photosensitive layer, and the high-quality light absorbing layer depends on the growth condition of the crystals. In the formation of high-quality crystals, annealing is an indispensable and crucial part, which serves to evaporate the solvent and drive the crystallization of the film. Various annealing methods have different effects on the promotion of the film growth process owing to the way they work. Here, this review will present a discussion of the growth puzzles and quality of perovskite crystals under different driving forces, and then explain the relationship between the annealing driving force and crystal growth. We divided the main current annealing methods into physical and chemical annealing, which has never been summarized before. The main annealing methods currently reported for crystal growth are summarized to visualize the impact of annealing design strategies on photovoltaic performance, while the growth mechanisms of thin films under multiple annealing methods are also discussed. Finally, we suggest future perspectives and trends in the industrial fabrication of PSCs in the future. The review promises industrial manufacturing of annealed PSCs. The review is expected to facilitate the industrial fabrication of PSCs.

show abstract

N,N‑dimethylformamide vapor effect on microstructural and optical properties of CH3NH3PbI3 film during solvent annealing

Cited by 16 publications

References 27 publications

Synthesis and characterization of MAPbI3 thin film and its application in C-Si/perovskite tandem solar cell

Synthesis and characterization of MAPbI3 thin film and its application in C-Si/perovskite tandem solar cell

Single Source Thermal Evaporation of Two-dimensional Perovskite Thin Films for Photovoltaic Applications

Annealing Engineering in the Growth of Perovskite Grains

Contact Info

Product

Resources

About