Linear and Nonlinear Optical Characterization of Dye–Polymer Composite Films Based on Methylcellulose Incorporated with Varying Content of Methylene Blue

Abdullah, Omed Gh.; Salh, Dler. M.; Mohamad, Azhin H.; Jamal, Gelas M.; Ahmed, Hawzhin T.; Mustafa, Bakhan S.; Suhail, Mahdi Hasan

doi:10.1007/s11664-021-09322-8

Cited by 23 publications

(9 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The refractive index of the prepared electrolyte films experiences a maximum around the wavelengths at which absorbance peaks were observed, as shown in Figure 1A, indicating a direct correlation of absorbance with the refractive index of the materials. After 600 nm, refractive index n attains a constant value indicating the normal dispersion behavior of refractive index at higher wavelengths 14 …”

Section: Resultsmentioning

confidence: 99%

“…After 600 nm, refractive index n attains a constant value indicating the normal dispersion behavior of refractive index at higher wavelengths. 14 Electromagnetic radiation loses energy as it travels across a material. The refractive index changes during this propagation, turning into a complicated quantity.…”

Section: Optical Analysismentioning

confidence: 99%

“…This results in the potential application of PEs in the optical fields. 14 Dyes are organic compounds that bear chromophores and have a conjugate system. These absorb visible light (400-700 nm), which induces color in the compound.…”

Section: Introductionmentioning

confidence: 99%

“…Optical dye are one such filler that enhances the optical and electrical properties when incorporated into the PEs. This results in the potential application of PEs in the optical fields 14 . Dyes are organic compounds that bear chromophores and have a conjugate system.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Novel approach to enhance the optical and electrical properties of polymer electrolytes using phenol red dye

Koliyoor,

Ismayil,

Ammathnad Babashankar

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

This article comprehensively analyzes how phenol red dye affects the optical, structural, and electrical properties of sodium bromide‐doped polymer electrolyte films based on sodium carboxymethyl cellulose. Conventional solution casting technique has been employed to prepare the electrolytes. The optical analysis reveals that incorporating the phenol red dye improves the optical properties. Fourier transform infrared spectroscopy is used to study the kind of complexation between the polymer and dopants. Scanning electron microscope micrographs of the electrolytes indicate the acquisition of free volume on the surface of the polymer matrix. The electrical properties are studied using impedance analyzer, which shows that the ionic conductivity increases when the dye is incorporated. The electrolyte system incorporated with 0.25 wt% of the dye exhibits the highest conductivity among the other systems. Photoluminescence investigation demonstrates that doping increases the intensity of the photoluminescence emission as it minimizes the free volume size. Commission Internationale de l'Eclairage (CIE) chromatograph studies indicate that the doped samples emit a yellow color with a color purity of 97%. All in all, the findings imply that adding dye to the polymer matrix increases the electrical and visual characteristics of the polymer electrolyte.Highlights Phenol red dye improves the optical properties of sodium carboxymethyl cellulose‐based polymer electrolytes. Scanning electron microscope micrographs reveal the creation of free volume on the surface of electrolyte films. Analysis of electrical properties shows a slight increase in ionic conductivity with dye incorporation. Photoluminescence intensity increases with dye due to reduced free volume size. Doped samples emit 97% purity yellow enhancing electrical and optical properties.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Optical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel approach to enhance the optical and electrical properties of polymer electrolytes using phenol red dye

Koliyoor,

Ismayil,

Ammathnad Babashankar

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…This can be ascribed to the emergence of numerous defects within the PVA structure, signifying that these polymeric composite films generally exhibit flaws such as chemical defects, structural defects, impurities, and the like, along with disorders like crystalline disorder [50], as corroborated by the XRD results. The value of the refractive index n remains constant after 860 nm, showing the behavior of normal dispersion at longer wavelengths [51].…”

Section: Dispersion Characteristicsmentioning

confidence: 87%

Tailoring the optical properties of dye–polymer composite films based on polyvinyl alcohol doped with phenol red toward flexible optoelectronic applications

Al-Muntaser,

Althobiti,

Al Naim

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

The composite films of polyvinyl alcohol (PVA) incorporating varying concentrations of phenol red (PR) dye were fabricated using the solution casting method. Structural characteristics of the prepared films were explored through XRD and FTIR spectroscopy analyses. The inclusion of PR dye within the PVA matrix induced cross-linking, enhancing the amorphous nature of the doped PVA samples, as evidenced by XRD patterns. In the presence of PR dopants, the FTIR peaks for PVA exhibited altered intensities and increased width, indicating physical interactions between the functional groups of PVA and PR dopants. The impact of PR additives on the optical properties of PVA was investigated across the spectral range of 190-2500 nm. The PVA/phenol red composite demonstrated enhanced UV blocking in the 190-400 nm wavelength range, rendering it suitable for applications such as UV notch filters, including laser blocking filters. The indirect and direct optical band-gaps of PVA polymer films were reduced from 5.20 eV and 5.78 eV to 4.30 eV and 5.28 eV, respectively, with an increase in the PR filling ratio from 0 wt% to 1.8 wt%. The dispersion region of the refractive index was analyzed using the single oscillator model (Wemple-DiDomenico). Calculation and discussion of values such as dispersion and oscillation energies (Ed and Eo), permittivity at infinite frequency (ε∞), and lattice contribution to the dielectric function (εL) of PVA/PR composite films were conducted. These advancements position PVA/PR composite films for potential applications in flexible optoelectronic devices, including light-emitting diodes and photodetectors.

show abstract

Investigation of structural and optical properties of ternary polyaniline–polypyrrole–nickel oxide (PANI‐PPy‐NiO) nanocomposite for optoelectronic devices

Elumalai

Charles

2022

Polymer International

View full text Add to dashboard Cite

A new ternary nanocomposite comprising nickel oxide (NiO) embedded into a binary polymeric network of polyaniline (PANI) and polypyrrole (PPy), i.e. PANI‐PPy‐NiO, is synthesized using an in situ chemical oxidative method. The infrared spectrum of PANI‐PPy‐NiO exhibits most of the characteristic peaks of unary nanoparticles with slight shift in the frequencies. The shift is due to the synergistic interaction of binary PANI‐PPy with the inorganic NiO nanoparticles. X‐ray diffraction pattern reveals the semicrystalline structure of the PANI‐PPy‐NiO nanocomposite with an average crystallite size of 22 nm. From Williamson–Hall plot, the micro‐strain value of as‐prepared PANI‐PPy‐NiO is found to be −0.16727. Surface morphology of PANI‐PPy‐NiO shows fine grains of NiO‐encapsulated PANI‐PPy that tend to coalesce and form an agglomeration assembly. The elements detected from energy‐dispersive X‐ray analysis indicate the purity of synthesis of the ternary material. Further, the optical constants obtained from UV–visible spectra (absorption coefficient, extinction coefficient, refractive index, optical conductivity and real and imaginary dielectric constants) are found to be higher for PANI‐PPy‐NiO than for the unary PANI, PPy and NiO nanoparticles. Tauc plot and Urbach energy studies indicate the low bandgap energy of PANI‐PPy‐NiO (2.67 eV) compared to unary nanoparticles. Further, the emission intensity peak (492 nm) observed in the photoluminescence spectrum of PANI‐PPy‐NiO corresponds to the blue region of the visible spectrum. Thus, the optical studies clearly indicate the high suitability of the synthesized PANI‐PPy‐NiO in visible‐light‐based device applications. © 2022 Society of Industrial Chemistry.

show abstract

Linear and Nonlinear Optical Characterization of Dye–Polymer Composite Films Based on Methylcellulose Incorporated with Varying Content of Methylene Blue

Cited by 23 publications

References 43 publications

Novel approach to enhance the optical and electrical properties of polymer electrolytes using phenol red dye

Novel approach to enhance the optical and electrical properties of polymer electrolytes using phenol red dye

Tailoring the optical properties of dye–polymer composite films based on polyvinyl alcohol doped with phenol red toward flexible optoelectronic applications

Investigation of structural and optical properties of ternary polyaniline–polypyrrole–nickel oxide (PANI‐PPy‐NiO) nanocomposite for optoelectronic devices

Contact Info

Product

Resources

About