Optical properties of poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] light-emitting polymer solutions: effects of molarities and solvents

Abstract

The optical properties of the solutions of the MDMO-PPV light-emitting polymer were investigated. The maximum mass extinction coefficient values of the solutions of the MDMO-PPV for 6.640 and 3.014 µM were found to be 20.874 and 42.009 L g −1 cm −1 , respectively. The absorption band edge values of the solutions of the MDMO-PPV shifted from 2.149 to 1.987 eV with increasing molarity. To obtain lower E g values (2.020, 2.057, 2.083, 2.088 and 2.103 eV, respectively) of the MDMO-PPV can be preferred xylene, toluene, chlorobenzene, chloroform and tetrahydrofuran solvents, respectively. The E g of the solution of the MDMO-PPV was decreased with molarities and solvents. The refractive index values of the MDMO-PPV were controlled with various solvents. The optical parameters such as single oscillator energy, dispersion energy, M −1 , M −3 moments, optical oscillator strengths, linear static refractive index, optical linear susceptibility, third-order nonlinear susceptibility and nonlinear refractive index were calculated using Wemple-DiDomenico equation. The highest contrast was obtained with xylene, while the lowest contrast was obtained with chlorobenzene. The MDMO-PPV can be used in the fabrication of the metal-semiconductor contacts due to low optical band gap and suitable optical parameters. Also, the surface morphology properties of the MDMO-PPV polymer film were investigated.

Structural, electrical, and nonlinear optical performance of PVAL embedded with Li+‐ions for multifunctional devices

“…The values obtained are higher than those in the TiN/PVAL 52 . Moreover, the evacuated values of χ (3) and n 2 are also more than that found for the MDMO‐PPV (poly[2‐methoxy‐5‐[30,70‐dimethyloctyloxy]‐1,4‐phenylenevinylene]) system for all solvents used 53 . Therefore, the present Li + ‐ions shows a considerable influence on the host matrix with improved nonlinear optical parameters.…”

A Study on the Optoelectronic Parameters of 4-Chloromethyl-7-Hydroxy Coumarin in Various Solvents and Concentrations

“…Besides, THF, DMF and DMSO have a significant effect on absorbance of CMEHC. The mass extinction coefficient (αmass) is investigated for optoelectronic applications and is given in (18,24).…”

“…The refractive index or index of refraction (n) is a fundamental optical parameter for optoelectronic applications. The n values can be obtained by (16,24).…”

Preparation and Investigation of PVA/Cu Nanoparticles by Eco-friendly Electrochemical Method

“…The slope of these fitted curves equals (-1/EoEd) and the intercept equals (Eo/Ed), so that the values of Ed, Eo, and no are calculated and listed in Table 1. The interaction strength between electromagnetic radiation and material is calculated in terms of the optical oscillator force, (f=EoEd), [44] and listed in Table 1.…”