Polypyrrole/functionalized multi-walled carbon nanotube composite for optoelectronic device application

Zwawi, Mohammed; Attar, Alaa; Al‐Hossainy, Ahmed F.; Abdel‐Aziz, M.H.; Zoromba, M. Sh.

doi:10.1007/s11696-021-01830-5

Cited by 20 publications

(5 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[196][197][198] Among them, the unique structure of carbon NTs facilitates excellent me-chanical, physical, and chemical properties, leading to high interest and expectations for potential applications. [199,200] TMDC NTs have unique electrical and optical properties, including a small band gap and diameter-dependent band gap behavior, making them useful in photovoltaic devices. [64,36] The bandgap can be direct for zigzag-type TMDC-SWCNTs and indirect for armchair type TMDC-SWCNTs.…”

Section: Ntsmentioning

confidence: 99%

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

Kim

Lee

et al. 2023

Small Methods

View full text Add to dashboard Cite

New emerging low‐dimensional such as 0D, 1D, and 2D nanomaterials have attracted tremendous research interests in various fields of state‐of‐the‐art electronics, optoelectronics, and photonic applications due to their unique structural features and associated electronic, mechanical, and optical properties as well as high‐throughput fabrication for large‐area and low‐cost production and integration. Particularly, photodetectors which transform light to electrical signals are one of the key components in modern optical communication and developed imaging technologies for whole application spectrum in the daily lives, including X‐rays and ultraviolet biomedical imaging, visible light camera, and infrared night vision and spectroscopy. Today, diverse photodetector technologies are growing in terms of functionality and performance beyond the conventional silicon semiconductor, and low‐dimensional nanomaterials have been demonstrated as promising potential platforms. In this review, the current states of progress on the development of these nanomaterials and their applications in the field of photodetectors are summarized. From the elemental combination for material design and lattice structure to the essential investigations of hybrid device architectures, various devices and recent developments including wearable photodetectors and neuromorphic applications are fully introduced. Finally, the future perspectives and challenges of the low‐dimensional nanomaterials based photodetectors are also discussed.

show abstract

Section: Ntsmentioning

confidence: 99%

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

Kim

Lee

et al. 2023

Small Methods

View full text Add to dashboard Cite

show abstract

“…These energy terms are based on the all-atom vacuum force field with added functions to account for solvation free energy, desolvation energy and entropic contribution. It was shown that after each random step, full local minimization greatly improves the efficiency of the procedure (Abd El-Aal et al 2022;Al-Hossainy et al 2021;Ibrahim et al 2020;Mohamed et al 2022;Zwawi et al 2021). The ICM program relies on global optimization of the entire flexible ligand in the receptor field and combines large-scale random moves of several types with gradient local minimization and a search history mechanism (Arthur et al 2018).…”

Section: Preparation Of Receptormentioning

confidence: 99%

Computational drug design of novel COVID-19 inhibitor

et al. 2022

View full text Add to dashboard Cite

Background In 2003, the first case of severe acute respiratory syndrome coronavirus (SARS-CoV) was recorded. Coronaviruses (CoVs) have caused a major outbreak of human fatal pneumonia. Currently, there is no specific drug or treatment for diseases caused by SARS CoV 2. Computational approach that adopts dynamic models is widely accepted as indispensable tool in drug design but yet to be exploited in covid-19 in Zaria, Nigeria. In this study, steps were taken to advance on the successful achievements in the field of covid-19 drug, with the aid of in silico drug design technique, to create novel inhibitor drug candidates with better activity. In this study, one thousand human immunodeficiency virus (HIV1) antiviral chemical compounds from www.bindingBD.org were docked on the SARS CoV 2 main protease protein data bank identification number 6XBH (PDB ID: 6XBH) and the molecular docking score were ranked in order to identify the compounds with the highest inhibitory effects, and easy selection for future studies. Results The docking studies showed some interesting results. Inhibitors with Index numbers 331, 741, and 819 had the highest binding affinity. Similarly, inhibitors with Index number 441, 847, and 46 had the lowest hydrogen bond energy. Inhibitor with index number 331 was reported with the lowest value (− 48.38kCal/mol). Five new compounds were designed from the selected six (6) compounds with the best binding score giving a total of thirty (30) novel compounds. The low binding energy of inhibitor with index no. 847b is unique, as most of the interaction energies are of H-bond type with amino acids (Thr26, Gly143, Ser144, Cys145, Glu166, Gln189, Hie164, Met49, Thr26, Thr25, Thr190, Asn142, Met165) resulting in an overall negative value (−16.31 kCal/mol) making it the best of all the newly designed inhibitors. Conclusions The novel inhibitor is 2-(2-(5-amino-2-((((3-aminobenzyl)oxy)carbonyl)amino)-5-oxopentanamido)-4-(2-(tert-butyl)-4-oxo-4-(pentan-3-ylamino) butanamido)-3-hydroxybutyl) benzoic acid. The improvement it has over the parent inhibitor is from the primary amine group attached to meta position of first benzene ring and the carboxyl group attached to the ortho position of the second benzene ring. The molecular dynamics studies also show that the novel inhibitor remains stable after the study. This result makes it a better drug candidate against SARS CoV 2 main protease when compared with the co-crystallized inhibitor or any of the 1000 docked inhibitors.

show abstract

“…Polypyrrole/MWCNTs composites were synthesized in accordance with previously published work [30]. At ambient temperature 3.5 g sodium dodecyl sulfate (SDS) was typically diluted in 100 mL 100% ethanol.…”

Section: Synthesis Of Polypyrrole/multi-walled Carbon Nanotube (Mwcnt) Compositesmentioning

confidence: 99%

Fabrication and Characterization of Polypyrrole/Multi-Walled Carbon Nanotubes Thin Films Using Thermal Evaporation

et al. 2021

Self Cite

View full text Add to dashboard Cite

Polypyrrole/multiwalled carbon nanotubes composites (PPy/MWCNTs) were produced in an acidic solution utilizing an in situ oxidative polymerization method using ferric chloride as an oxidizing agent and sodium dodecyl sulfate as a soft template. Thermal evaporation was used to fabricate thin films from polypyrrole/multiwalled carbon nanotube composites. The resulting composites were examined by different techniques to explore their morphology, structural and electrical characteristics. The surface morphology analysis revealed that polypyrrole structure is a two-dimensional film with impeded nanoparticles and the thickness of coated PPy around the MWCNTs decreases when increasing the amount of MWCNTs. XRD analysis revealed that the average crystallite size of the prepared composites is 62.26 nm. The direct energy gap for PPy is affected by a factor ranging from 2.41 eV to 1.47 eV depending on the contents of MWCNTs. The thin film’s optical properties were examined using experimental and TDDFT-DFT/DMOl3 simulation techniques. The optical constants and optical conductivity of the composites were calculated and correlated. The structural and optical characteristics of the simulated nanocomposites as single isolated molecules accord well with the experimental results. The nanocomposite thin films demonstrated promising results, making them a viable candidate for polymer solar cell demands. Under optimal circumstances, the constructed planar heterojunction solar cells with a 75 ± 3 nm layer of PPy/MWCNTs had a power conversion efficiency (PCE) of 6.86%.

show abstract

Polypyrrole/functionalized multi-walled carbon nanotube composite for optoelectronic device application

Cited by 20 publications

References 71 publications

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

Computational drug design of novel COVID-19 inhibitor

Fabrication and Characterization of Polypyrrole/Multi-Walled Carbon Nanotubes Thin Films Using Thermal Evaporation

Contact Info

Product

Resources

About