Star-shaped molecule with planar triazine core and perylene diimide branches as an n-type additive for bulk-heterojunction perovskite solar cells

Kuo, Da-Wei; Liu, Guanzhi; Lee, Rong-Ho

doi:10.1016/j.dyepig.2019.107562

Cited by 21 publications

(20 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, a variant of urea, biuret incorporation in MAPbI 3 precursor attributed the intermediate formation with PbI 2 to the electron delocalization in the N-C=O-N system in the presence of carbonyl group and explained this is why the peak shift for C=O vibration is noticed in FTIR spectra (from 1722 to 1713 cm −1 in case of biuret-modified MAPbI 3 film) [71], resulting in higher PCE over urea incorporated devices [72]. Some other additives, such as benzoquinone (BQ), triazine perylene diimide (TPDI), 3,4-dihydroxybenzhydrazide (DOBD), containing the carbonyl group have shown similar properties [73][74][75][76]. Similarly, it was also shown that, if a hydrophobic ring is attached within the additive framework in combination with the carbonyl group (Isatin-Cl additive), it also acts as a shield against humidity in ambient conditions, helping to maintain the PCE nearly to 95% of the initial state [77].…”

Section: Carbonyl and Amide Additivesmentioning

confidence: 95%

See 1 more Smart Citation

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

Section: Carbonyl and Amide Additivesmentioning

confidence: 95%

“…Influence of carbonyl/sulfonyl group onto stability of MAPbI 3 -based PSCs. The data are collected from references[65,67,68,71,[73][74][75][76][77]79,84,85] respectively.…”

mentioning

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

show abstract

“…The synthesis of the precursors 1-6 followed previously published procedures. [25][26][27][28] PDI-1-PDI-3 were obtained using the following procedure. Although attempted using several methods, high-resolution mass spectrometry (HRMS) data for PDI-1-PDI-3…”

Section: Synthesis Of Compounds Pdi-1-pdi-3mentioning

confidence: 99%

Synthesis, luminescence, and excited‐state absorption properties of disubstituted perylene diimide derivatives modified at bay region

et al. 2021

View full text Add to dashboard Cite

Three A-π-A or D-π-D perylene diimide (PDI) derivatives with varied groups on π-conjugate were synthesized and characterized. The photophysical properties of these compounds were systematically studied by spectral experiments and density functional theory calculations. All compounds displayed intense absorption bands at 300-800 nm wavelengths. However, diverse groups on the π-conjugate influenced the UV-vis absorption. Electron-withdrawing groups on PDI-2 caused a slight red shift at the 350-400 nm wavelength and a blue shift after 400 nm wavelength. At the same time, the electron-donating substituents on PDI-3 caused an obvious red shift of this band. These PDI derivatives exhibited emission in solution at room temperature (λ em = 500-850 nm). The quantum yield of PDI-3 decreased, while the electron-donating substituents were introduced to the π-conjugated motifs. However, the quantum yield of PDI-2 increased when electron-withdrawing substituents were introduced to the π-conjugated motifs. In addition, PDI-1 and PDI-2 exhibited broad triplet transient absorption in the visible region. These photophysical properties could help us to understand the relationship between structure and photophysical properties of perylene diimide derivatives and exploit more original perylene diimide-based optical functional materials.

show abstract

“…Perovskite solar cells (PVSCs), having planar or mesoscopic structures, can be fabricated through solution processing with thermal treatment at low temperatures [ 6 , 7 , 8 ]. Many efforts have been made to improve the PV properties of PVSCs; for example, by designing new perovskite materials with high photo-electron conversion [ 9 , 10 ], interfacial engineering between the perovskite layer and the electron- or hole-transporting layer (ETL or HTL) [ 11 , 12 , 13 , 14 ], controlling the crystal growth of the perovskite [ 15 , 16 , 17 , 18 , 19 , 20 ], and adding suitable amounts of halide, cationic, organic, and polymer additives in the perovskite layer [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photovoltaic Properties of Perovskite Solar Cells by Employing Bathocuproine/Hydrophobic Polymer Films as Hole-Blocking/Electron-Transporting Interfacial Layers

Liu

et al. 2020

Polymers

Self Cite

View full text Add to dashboard Cite

In this study, we improved the photovoltaic (PV) properties and storage stabilities of inverted perovskite solar cells (PVSCs) based on methylammonium lead iodide (MAPbI3) by employing bathocuproine (BCP)/poly(methyl methacrylate) (PMMA) and BCP/polyvinylpyrrolidone (PVP) as hole-blocking and electron-transporting interfacial layers. The architecture of the PVSCs was indium tin oxide/poly(3,4-ethylenedioxythiophene):polystyrenesulfonate/MAPbI3/[6,6]-phenyl-C61-butyric acid methyl ester/BCP based interfacial layer/Ag. The presence of PMMA and PVP affected the morphological stability of the BCP and MAPbI3 layers. The storage-stability of the BCP/PMMA-based PVSCs was enhanced significantly relative to that of the corresponding unmodified BCP-based PVSC. Moreover, the PV performance of the BCP/PVP-based PVSCs was enhanced when compared with that of the unmodified BCP-based PVSC. Thus, incorporating hydrophobic polymers into BCP-based hole-blocking/electron-transporting interfacial layers can improve the PV performance and storage stability of PVSCs.

show abstract

Star-shaped molecule with planar triazine core and perylene diimide branches as an n-type additive for bulk-heterojunction perovskite solar cells

Cited by 21 publications

References 56 publications

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

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

Synthesis, luminescence, and excited‐state absorption properties of disubstituted perylene diimide derivatives modified at bay region

Enhanced Photovoltaic Properties of Perovskite Solar Cells by Employing Bathocuproine/Hydrophobic Polymer Films as Hole-Blocking/Electron-Transporting Interfacial Layers

Contact Info

Product

Resources

About