Additive engineering to improve the efficiency and stability of inverted planar perovskite solar cells

Gao, Chenglin; Dong, Hua; Bao, Xichang; Saparbaev, Aziz; Yu, Liyan; Wen, Shuguang; Yang, Renqiang; Dong, Lifeng

doi:10.1039/c8tc02507j

Cited by 45 publications

(24 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During the film formation process, strong interaction between Acand Pb 2+ plays a significant role in the improved quality of resulting perovskite films. Moreover, various previous reports have confirmed that Ac -(in form of PbAc 2, FAAc, MAAc) is engaged in the perovskite growth process, leading to larger grains, and reducing defects [35][36][37] .…”

Section: Introductionmentioning

confidence: 75%

Beneficial effects of cesium acetate in the sequential deposition method for perovskite solar cells

Kim

Boschloo

2021

Nanoscale

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 75%

Beneficial effects of cesium acetate in the sequential deposition method for perovskite solar cells

Kim

Boschloo

2021

Nanoscale

View full text Add to dashboard Cite

show abstract

“…It was reported that FAAc controlled the film morphology and improved fill-factor over 80%, which in turn improved PCE to 16.59%. The improved photovoltaic parameter was further associated with the incorporation of FAAc that eliminated the defect and trap density in the MAPbI 3 film and, thus, improved the charge transport efficiency and reduced the hysteresis [98]. On the contrary, methyl ammonium acetate (MAAc) resulted in lower crystallinity and a smaller grain size~200 nm [99].…”

Section: Carboxylic/acid Additivesmentioning

confidence: 99%

The Progress of Additive Engineering for CH3NH3PbI3 Photo-Active Layer in the Context of Perovskite Solar Cells

Mangrulkar

Stevenson

2021

Crystals

View full text Add to dashboard Cite

Methylammonium lead triiodide (CH3NH3PbI3/MAPbI3) is the most intensively explored perovskite light-absorbing material for hybrid organic–inorganic perovskite photovoltaics due to its unique optoelectronic properties and advantages. This includes tunable bandgap, a higher absorption coefficient than conventional materials used in photovoltaics, ease of manufacturing due to solution processability, and low fabrication costs. In addition, the MAPbI3 absorber layer provides one of the highest open-circuit voltages (Voc), low Voc loss/deficit, and low exciton binding energy, resulting in better charge transport with decent charge carrier mobilities and long diffusion lengths of charge carriers, making it a suitable candidate for photovoltaic applications. Unfortunately, MAPbI3 suffers from poor photochemical stability, which is the main problem to commercialize MAPbI3-based perovskite solar cells (PSCs). However, researchers frequently adopt additive engineering to overcome the issue of poor stability. Therefore, in this review, we have classified additives as organic and inorganic additives. Organic additives are subclassified based on functional groups associated with N/O/S donor atoms; whereas, inorganic additives are subcategorized as metals and non-metal halide salts. Further, we discussed their role and mechanism in terms of improving the performance and stability of MAPbI3-based PSCs. In addition, we scrutinized the additive influence on the morphology and optoelectronic properties to gain a deeper understanding of the crosslinking mechanism into the MAPbI3 framework. Our review aims to help the research community, by providing a glance of the advancement in additive engineering for the MAPbI3 light-absorbing layer, so that new additives can be designed and experimented with to overcome stability challenges. This, in turn, might pave the way for wide scale commercial use.

show abstract

“…Benefiting from the advances of various film deposition techniques, such as one-step spin coating [13,21], two-step sequential solution deposition [22,23] and inkjet printing fabrication [24,25], unprecedented progress in the improvement of the efficiency of PSCs has been made. To obtain high-quality perovskite films based on these techniques, researchers control the perovskite morphology by optimizing the solvents for processing [26], varying the annealing temperature [27], adjusting the processing additives [28], sophisticated engineering of the solvent [12,14] and annealing of the solvent [29,30]. Here, some common and effective methods are introduced.…”

Section: Fabrication Of High-quality Perovskite Filmsmentioning

confidence: 99%

“…In order to solve this problem, Bao et al [28] introduced formamidine acetate salt (FAAc) as an additive to optimize both the crystalline quality and the film morphology. By this, highly homogeneous perovskite films with low trap states and uniform morphology could be fabricated.…”

Section: Additivesmentioning

confidence: 99%

Recent progress in perovskite solar cells: the perovskite layer

Dai¹,

Xu²,

Wei³

2020

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

Perovskite solar cells (PSCs) are set to be game changing components in next-generation photovoltaic technology due to their high efficiency and low cost. In this article, recent progress in the development of perovskite layers, which are the basis of PSCs, is reviewed. Achievements in the fabrication of high-quality perovskite films by various methods and techniques are introduced. The reported works demonstrate that the power conversion efficiency of the perovskite layers depends largely on their morphology and the crystalline quality. Furthermore, recent achievements concerning the scalability of perovskite films are presented. These developments aim at manufacturing large-scale perovskite solar modules at high speed. Moreover, it is shown that the development of low-dimensional perovskites plays an important role in improving the long-term ambient stability of PSCs. Finally, these latest advancements can enhance the competitiveness of PSCs in photovoltaics, paving the way for their commercialization. In the closing section of this review, some future critical challenges are outlined, and the prospect of commercialization of PSCs is presented.

show abstract

Additive engineering to improve the efficiency and stability of inverted planar perovskite solar cells

Abstract: A formamidine acetate salt additive engineering strategy is developed to fabricate perovskite solar cells with high efficiency and stability.

Cited by 45 publications

References 60 publications

Beneficial effects of cesium acetate in the sequential deposition method for perovskite solar cells

Beneficial effects of cesium acetate in the sequential deposition method for perovskite solar cells

The Progress of Additive Engineering for CH3NH3PbI3 Photo-Active Layer in the Context of Perovskite Solar Cells

Recent progress in perovskite solar cells: the perovskite layer

Contact Info

Product

Resources

About