Sonochemical preparation and characterization of solid dodecyl perylene diimides/MCM-41

Zhan, Xuehui; Cui, Kuixin; Dou, Maofeng; Jin, Shengming; Yang, Xinguo; Guan, Haoyuan

doi:10.1039/c4ra06969b

Cited by 4 publications

(3 citation statements)

References 36 publications

(11 reference statements)

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“…With the increase in the amount of V element doping, Mn ions will gradually be replaced by V ions. An overabundance of V 5+ doping will infiltrate the octahedral space, occupy the Na + diffusion channels, induce lattice defects, ultimately resulting in a decline in the electrochemical performance of P2 oxide cathodes [45] . The O 1s peak at 528.9, 530.4, 533.1 eV belongs to lattice oxygen, adsorbed oxygen, and hydroxyl oxygen respectively (Figure 4d).…”

Section: Resultsmentioning

confidence: 99%

Internal Vanadium Doping and External Modification Design of P2‐Type Layered Mn‐Based Oxides as Competitive Cathodes toward Sodium‐Ion Batteries

Li,

Lai,

Kong

et al. 2024

Chemistry A European J

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P2‐type layered manganese‐based oxides have attracted considerable interest as economical, cathode materials with high energy density for sodium‐ion batteries (SIBs). Despite their potential, these materials still face challenges related to sluggish kinetics and structural instability. In this study, a composite cathode material, Na0.67Ni0.23Mn0.67V0.1O2@Na3V2O2(PO4)2F was developed by surface‐coating P2‐type Na0.67Ni0.23Mn0.67V0.1O2 with a thin layer of Na3V2O2(PO4)2F to enhance both the electrochemical sodium storage and material air stability. The optimized Na0.67Ni0.23Mn0.67V0.1O2@5wt%Na3V2O2(PO4)2F exhibited a high discharge capacity of 176 mA h g‐1 within the 1.5‐4.1 V range at a low current density of 17 mA g‐1. At an increased current density of 850 mA g‐1 within the same voltage window, it still delivered a substantial initial discharge capacity of 112 mAh g‐1. These findings validate the significant enhancement of ion diffusion capabilities and rate performance in the P2‐type Na0.67Ni0.33Mn0.67O2 material conferred by the composite cathode.

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Section: Resultsmentioning

confidence: 99%

Internal Vanadium Doping and External Modification Design of P2‐Type Layered Mn‐Based Oxides as Competitive Cathodes toward Sodium‐Ion Batteries

Li,

Lai,

Kong

et al. 2024

Chemistry A European J

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“…The peak situated at ~430 nm overlapped the wide peak attributed to Si (situated at 420 nm) and can be associated with Si substrate. The peak positioned at 550 nm could be determined by the transition from the fundamental state (S 0 ) to the first singlet excited state (S 1 ) in AMC14 [ 74 , 75 ]. In the sample realized with AMC31 and AMC14, this peak was superimposed on the peak corresponding to 0-0 electronic transition in polymer AMC31.…”

Section: Resultsmentioning

confidence: 99%

Effect of Aluminum Nanostructured Electrode on the Properties of Bulk Heterojunction Based Heterostructures for Electronics

et al. 2022

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The properties of organic heterostructures with mixed layers made of arylenevinylene-based polymer donor and non-fullerene perylene diimide acceptor, deposited using Matrix Assisted Pulsed Laser Evaporation on flat Al and nano-patterned Al electrodes, were investigated. The Al layer electrode deposited on the 2D array of cylindrical nanostructures with a periodicity of 1.1 µm, developed in a polymeric layer using UV-Nanoimprint Lithography, is characterized by an inflorescence-like morphology. The effect of the nanostructuring on the optical and electrical properties was studied by comparison with those of the heterostructures based on a mixed layer with fullerene derivative acceptor. The low roughness of the mixed layer deposited on flat Al was associated with high reflectance. The nano-patterning, which was preserved in the mixed layer, determining the light trapping by multiple scattering, correlated with the high roughness and led to lower reflectance. A decrease was also revealed in photoluminescence emission both at UV and Vis excitation of the mixed layer, with the non-fullerene acceptor deposited on nano-patterned Al. An injector contact behavior was highlighted for all Al/mixed layer/ITO heterostructures by I-V characteristics in dark. The current increased, independently of acceptor (fullerene or non-fullerene), in the heterostructures with nano-patterned Al electrodes for shorter conjugation length polymer donors.

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“…The bandgap of the oligomers evaluated from cyclic voltammetry is 1.86 eV for L78 and 2.19 eV for L13 [18] and for AMC14 2.29 eV, evaluated from the peak corresponding to the 0À0 electronic transition, situated at 540 nm. [32,33] The UVÀvis spectra of L13:AMC14 (Figure 1b) deposited on triple-layer TCE shows a structured absorption edge with two very weak peaks situated around 505 and 540 nm, while the absorption edge of L78:AMC 14 shows no structure. This behavior of the layer based on L13 is determined by the interactions between molecules and the surrounding medium, favoring the lowering of the molecules symmetry and removing of the degeneracy allowing new transitions.…”

Section: Optical Propertiesmentioning

confidence: 99%

Organic Heterostructures with Indium‐Free Transparent Conductor Electrode for Optoelectronic Applications

Petre

Stănculescu

Gîrtan

et al. 2021

Physica Status Solidi (a)

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Herein, the properties of the organic heterostructures with triple‐layer ZnO/Ag/ZnO as a replacement for ITO and mixed layer containing arylenevinylene oligomer (based on triphenylamine or carbazole) donor and nonfullerene (perylene diimide) acceptor mixed in the ratio 1:2 and the effect of a buffer layer of PEDOT‐PSS intercalated between triple layer and mixed organic layer are discussed. The UV−vis transmission and photoluminescence (PL) properties are investigated in correlation with the surface topography and reveal a good match between the absorption and emission domain, which can favor the generation of the charge carriers. The heterostructure with the mixed layer based on triphenylamine oligomer shows the widest absorption domain, and the PL spectra of the heterostructures realized with either triphenylamine or carbazole oligomer show peaks corresponding to the radiative decay of the donor and acceptor. The I−V characteristics in the dark indicate a slightly nonlinear behavior and the current is affected by the charge carriers recombination on the defects present in the thick mixed layer deposited by matrix‐assisted pulsed laser evaporation. The effect of the PEDOT‐PSS buffer layer on the electrical properties of the organic heterostructure with ZnO/Ag/ZnO electrode is also investigated.

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Sonochemical preparation and characterization of solid dodecyl perylene diimides/MCM-41

Abstract: PL spectra of DDPDI/MCM-41 illustrated peak splits in protic solvent with different attachment sites of fluorophore, and linear change of red shift with permittivity of ambient after ultrasonic treatment.

Cited by 4 publications

References 36 publications

Internal Vanadium Doping and External Modification Design of P2‐Type Layered Mn‐Based Oxides as Competitive Cathodes toward Sodium‐Ion Batteries

Internal Vanadium Doping and External Modification Design of P2‐Type Layered Mn‐Based Oxides as Competitive Cathodes toward Sodium‐Ion Batteries

Effect of Aluminum Nanostructured Electrode on the Properties of Bulk Heterojunction Based Heterostructures for Electronics

Organic Heterostructures with Indium‐Free Transparent Conductor Electrode for Optoelectronic Applications

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