Energy transfer and compatibility analysis of PVK/MEH-PPV blends processed via electrospraying and electrospinning

Mondragón, Margarita; Balderas, J.U.; Jimenez, G. Lesly; Sánchez-Espíndola, Ma. Esther; Falcony, C.

doi:10.1016/j.orgel.2014.08.040

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…Comparing the TGA curves of the PCBM, copolymer and composite (Figure 3 can be noted that the PCBM exhibited some decomposition located at approximately °C, which was interpreted as the decomposition of phenyl butyric acid methyl ester [2 The weight loss spectrum of the copolymer showed two steps of decomposition. first 20% of the decomposition step began at 250 °C and ended at 430 °C, with a m mum observed rate at 420 °C.…”

Section: Thermal Analysismentioning

confidence: 97%

“…The mastering of coupling optoelectronic properties and polymer structures makes the emergence of organic electronics an interest [ 1 , 2 , 3 , 4 ] for scientists hoping to work in this field of research. Their challenge is to at least obtain a stable organic material that is also flexible and can be implemented [ 5 , 6 , 7 ] as an active layer in optoelectronic devices, especially organic solar cells.…”

Section: Introductionmentioning

confidence: 99%

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Photophysical Properties of the PVK-MEH-PPV/PCBM Composite for Organic Solar Cells Application: Synthesis, Characterization and Computational Study

et al. 2021

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The physical and chemical properties of a new organic composite including PVK-MEH-PPV bi-block copolymer and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) were recorded. The functionalization and the charge transfer that occurs between donor and acceptor were examined and computed. In fact, the stationary and time-resolved photoluminescence properties were used to examine the effect of the PCBM on the optical properties of the PVK-MEH-PPV matrix. The photoluminescence quenching accompanied by faster PL decay confirmed the charge transfer and interaction process. The electrical and optoelectronic properties and the charge carriers’ injection in the resulting composite were examined. The experimental conclusion was corroborated and confirmed by a calculation based on density functional theory (DFT). Hence, the combination of experimental and theoretical results indicated that the result composite can be applied as an active layer for organic solar cells.

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Section: Thermal Analysismentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Photophysical Properties of the PVK-MEH-PPV/PCBM Composite for Organic Solar Cells Application: Synthesis, Characterization and Computational Study

et al. 2021

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“…The majority of the blending processes-related articles focus on the technological aspects including solvent-evaporation technique [5], oil blending [6], pharmaceutical industry [7], gasoline blending [8], coal mixing [9], polymeric blends [10,11], morphological, thermal and rheological tests in order to evaluate the miscibility and thermal stability of the polymers and their blends [12], conventional and chaotic mixing [13], alumina metallurgical industry [14], infrared chemical imaging [15], thermoplastic blends [16], cement mixing [17], blending of monolayer particle-coated powder [18], asphalt mixtures [19], two-step melt blending [20], clay blending process [21], expandable graphite composites [22], food industry [23][24][25], hydrocolloids [26], batch blending processes [27], continuous powder-blending processes [28], and nanoparticle distribution in blending processes [29].…”

Section: Content Analysismentioning

confidence: 99%

“…In the case of this Scenario, the analysis shows that the profit was increased by using the integrated model (see Table 3). In this Scenario we have used the following specific loading and unloading costs: c LO = [11, 15,14,11,11,14,8,20,13,7]. The income of the basic model with technological parameters is 45,000 EUR, the total cost of the optimal solution of the basic model of blending problem is 14,739 EUR, the loading and unloading cost resulted by the optimal solution of the basic blending problem is 14,555 EUR, while the total cost of the optimal solution of the integrated model of blending problems focusing on both technology and inventory holding is 26,623 EUR.…”

mentioning

confidence: 99%

Supply Chain Design for Blending Technologies

Bányai

Veres

2022

Sustainability

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When optimizing blending technologies, the main objective is to determine the right mixing ratio of the raw materials, depending on the different qualities and costs of the raw materials available. It can be concluded that research is mainly focused on answering technological questions, and only very few studies take into account the logistics processes related to blending technologies, their design, cost-efficiency, utilization and sustainability including energy efficiency and environmental impact. Based on this fact, within the frame of this research the authors describe a new approach, extending the basic model of blending problems by adding new supply chain efficiency-related components that makes it possible to take logistics parameters related to the raw materials supply (available stocks, batch sizes, transport and storage costs, supply chain structure) into consideration. A mathematical model of this supply chain optimization problem for blending technologies is described including routing and assignment problems in the supply chain, while technological objectives are also taken into consideration as technological objective functions and constraints. The optimization problem described in the model is a problem with non-deterministic polynomial-time hardness (NP-hard), which means that there are no known efficient analytical methods to solve the logistics-related supply chain optimization of blending technologies. As a solution algorithm, the authors have used an evolutive solver and a new metrics, which improved the efficiency of the comparison of distances between solutions of routing problems represented by permutation arrays. The scenario analysis, which focuses on the integrated optimization of technological and logistics problems validates the model and evaluates the solution algorithm and the new metrics. Using the mentioned algorithm, the supply chain processes of the blending technologies can be improved from availability, efficiency, sustainability point of view.

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“…PVK is an attractive material for optically and electrically active devices. Several groups have investigated photoluminescence (PL) from PVK‐based fibers, but these fibers had mean diameters ≳ 1 µm and waveguiding in the fibers has not been reported. Min et al fabricated submicron PVK fibers using an electrohydrodynamic process and used them as a shadow mask.…”

Section: Introductionmentioning

confidence: 99%

Waveguiding properties in dye-doped submicron poly(N-vinylcarbazole) fibers

Ishii

Satozono

Omori

et al. 2016

J. Polym. Sci. Part B: Polym. Phys.

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Dye-doped submicron poly(N-vinylcarbazole) fibers having mean diameters of 290-430 nm were fabricated via electrospinning and their waveguiding properties were investigated. The middle of each fiber's length was excited with UV light and guided photoluminescence (PL) was measured at the end of each of the fibers for different propagation lengths. The spectral shapes of the guided PL differed depending on the fiber diameter because of leakage of light into the substrate. We propose a model that reproduces the PL attenuation with increasing propagation lengths and includes the temporal PL decay due to photobleaching and the size of the excitation area. The calculated propagation loss coefficient in the fibers was 6.3 3 10 23 21.4 3 10 21 mm 21 with k 5 430-500 nm. The propagation loss was inherent in the fiber itself because the reabsorption loss coefficient of the doped dye was <1.3% of the propagation loss coefficient.

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Energy transfer and compatibility analysis of PVK/MEH-PPV blends processed via electrospraying and electrospinning

Cited by 11 publications

References 27 publications

Photophysical Properties of the PVK-MEH-PPV/PCBM Composite for Organic Solar Cells Application: Synthesis, Characterization and Computational Study

Photophysical Properties of the PVK-MEH-PPV/PCBM Composite for Organic Solar Cells Application: Synthesis, Characterization and Computational Study

Supply Chain Design for Blending Technologies

Waveguiding properties in dye-doped submicron poly(N-vinylcarbazole) fibers

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