Impact of solvents on energy gap, photophysical, photometric properties for a new class of 4-HCM coumarin derivative: Nonlinear optical studies and optoelectronic applications

• Published in: Journal of molecular liquids 2019-10, Vol.292, p.111383, Article 111383
• Main Authors: Pramod, A.G., Renuka, C.G., Nadaf, Y.F., Rajaramakrishna, R.
• Format: Article
• Language: English
• Subjects: Band gap; Coumarin; NLO material; Optoelectronic; Photostable
• ISSN: 0167-7322; 1873-3166
• DOI: 10.1016/j.molliq.2019.111383

Now a day the derivatives of biscoumarins are receiving overwhelming importance due to their application in designing organic semiconductor materials for display application. Therefore, a new photostable, light emitting and highly efficient synthesized material to exhibit display property and nonlinear optical active materials with good band gap energy, we have synthesized 4-Hydroxy-3-[(4-hydroxy-2-oxo-2H-chromen-3-yl)(4-methoxyphenyl)methyl]-2H-chromen-2-one (4-HCM) molecule via the simple catalytic method. The photophysical property of studied molecule in various organic solvents having different polarity exhibited considerably acceptable results. The results of quantum yield, lifetime and large Stoke shift shows the compound is a good promising candidate for the laser dyes and light emitting diode color filters. The energy band gap was determined by both experimentally and theoretically which is found to be an average of 3.78 eV which is well matched to the semiconducting materials band gap. The nonlinear optical absorption properties of the synthesized 4-HCM molecule are investigated using Z-scan technique. Further, the optoelectronic properties were investigated the CIE, color rendering index, color purity and color correlated temperature results of the 4-HCM in all studied solvents revels that this compound exhibits blue color (CIE-co-ordinates x = 0.14, y = 0.08) and is suitable for optoelectronic device applications. [Display omitted] •Synthesis of coumarin molecule•Exhibits good energy band gap for optoelectronic device application•Z-scan profiles clearly demonstrate the presence of reverse saturable absorption.•A promising nonlinear optical material for optical limiting application in CW regime•x = 0.14, y = 0.08 coordinates show material is suitable for blue color OLED.