Tuning the size and morphology of P3HT/PCBM composite nanoparticles: towards optimized water-processable organic solar cells

Ghazy, Omayma; Freisinger, Birger; Lieberwith, Ingo; Landfester, Katharina

doi:10.1039/d0nr05847e

Cited by 12 publications

(11 citation statements)

References 38 publications

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“…NRG-NSps (10 μL, 100 μg/mL) was placed on a 300-mesh copper sheet, and then negatively stained with 2% ( w / v ) uranyl acetate for 30 s [ 41 ]. After air-drying, the samples were measured by transmission electron microscope (JEOL Ltd., Tokyo, Japan) at 120 kV.…”

Section: Methodsmentioning

confidence: 99%

Preparation of Naringenin Nanosuspension and Its Antitussive and Expectorant Effects

et al. 2022

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Naringenin (NRG) is a natural flavonoid compound abundantly present in citrus fruits and has the potential to treat respiratory disorders. However, the clinical therapeutic effect of NRG is limited by its low bioavailability due to poor solubility. To enhance the solubility, naringenin nanosuspensions (NRG-NSps) were prepared by applying tocopherol polyethylene glycol succinate (TPGS) as the nanocarrier via the media-milling method. The particle size, morphology, and drug-loading content of NRG-NSps were examined, and the stability was evaluated by detecting particle size changes in different physiological media. NRG-NSps exhibited a flaky appearance with a mean diameter of 216.9 nm, and the drug-loading content was 66.7%. NRG-NSps exhibited good storage stability and media stability. NRG-NSps presented a sustainable release profile, and the cumulative drug-release rate approached approximately 95% within 7 d. NRG-NSps improved the antitussive effect significantly compared with the original NRG, the cough frequency was decreased from 22 to 15 times, and the cough incubation period was prolonged from 85.3 to 121.6 s. Besides, NRG-NSps also enhanced expectorant effects significantly, and phenol red secretion was increased from 1.02 to 1.45 μg/mL. These results indicate that NRG-NSps could enhance the bioavailability of NRG significantly and possess a potential clinical application.

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Section: Methodsmentioning

confidence: 99%

Preparation of Naringenin Nanosuspension and Its Antitussive and Expectorant Effects

et al. 2022

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“…Penelitian ini terbagi dalam 4 tahap, meliputi sintesis nanopartikel dengan metode presipitasi, karakterisasi UV-Vis, pembuatan lapisan tipis dengan menggunakan Spin Coater serta karakterisasi SEM (Scanning Electron Microscope). Gambar 2 menunjukkan bahwa puncak absorbansi P3HT:PCBM yang disintesis berada pada rentang panjang gelombang 300 sampai 350 nm yang merupakan puncak serapan dari PCBM [12][13][14].…”

Section: Bahan Dan Metodeunclassified

Stabilisasi Suspensi Surfactant-Free Nanopartikel P3HT:PCBM

Darwis¹,

Peluru

2020

Gravitasi

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Penelitian ini bertujuan untuk menginfestigasi tentang tingkat kestabilan suspensi Surfactant-Free nanopartikel P3HT:PCBM yang disintesis dengan metode presipresipitasi. Selanjutnya dilakukan karakterisasi absoransi menggunakan UV-Vis spektroskopi untuk suspensi nanopartikel P3HT:PCBM tanpa proses penguapan CHCl3 dan suspensi yang telah mengalami proses penguapan CHCl3. Tahap berikunya adalah deposisi lapisan tipis nanopartikel P3HT:PCBM menggunakan spin coater. Tahap akhir adalah karakterisasi SEM untuk mengetahui morfologi permukaan lapisan tipis nanopartikel. Hasil yang diperoleh menunjukkan bahwa proses pemanasan terhadap suspensi nanopartikel organik P3HT:PCBM pada suhu 60oC selama 6 jam menghasilkan nanopartikel yang stabil hingga 5 hari. Hasil SEM menunjukkan bahwa proses annealing pada suhu 140oC selama 4 menit mengasilakan morfologi permukaan film yang lebih homogen.

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“…Polymeric materials such as organic photovoltaics (OPVs) may play a significant role in this transition on account of their tunable electronic properties. Furthermore, polymers enable controlled bottom‐up design of complex functional morphologies 1–3 . In this context, OPVs have shown great potential due to their low cost and ease of processing.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, polymers enable controlled bottom-up design of complex functional morphologies. [1][2][3] In this context, OPVs have shown great potential due to their low cost and ease of processing. However, the rapid photo-degradation of OPVs, mainly caused by the uptake of oxygen and water, [4][5][6] is one of the main reasons that OPVs have not been able to conquer the market.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale chemical analysis of beam‐sensitive polymeric materials by cryogenic electron microscopy

Wirix

Lazar

Verhoeven

et al. 2021

Journal of Polymer Science

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Nanoscale chemical analysis of functional polymer systems by electron microscopy, to gain access into degradation processes during the materials life cycle, is still a formidable challenge due to their beam sensitivity. Here a systematic study on the different stages of degradation in a P3HT‐PCBM organic photovoltaic (OPV) model system is presented. To this end pristine samples, samples with (reversibly) physisorbed oxygen and water and samples with (irreversibly) chemisorbed oxygen and water are imaged utilizing the full capabilities of cryogenic STEM‐EELS. It is found that oxygen and water are largely physisorbed in this system leading to significant effects on the band structure, especially for PCBM. Quantification proves that degradation concomitantly decreases the amount of CC bonds and increases the amount of COC bonds in the sample. Finally, it is shown that with a pulsed electron beam utilizing a microwave cavity, beam damage can be significantly reduced which likely extends the possibilities for such studies in future.

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Tuning the size and morphology of P3HT/PCBM composite nanoparticles: towards optimized water-processable organic solar cells

Abstract: The function of an organic solar cell relies on making a contact surface between a donor and acceptor material. For an efficient conversion of solar energy, this heterojunction must be...

Cited by 12 publications

References 38 publications

Preparation of Naringenin Nanosuspension and Its Antitussive and Expectorant Effects

Preparation of Naringenin Nanosuspension and Its Antitussive and Expectorant Effects

Stabilisasi Suspensi Surfactant-Free Nanopartikel P3HT:PCBM

Nanoscale chemical analysis of beam‐sensitive polymeric materials by cryogenic electron microscopy

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