Dispersion of fluorescent dye in the nematic liquid crystal : enhanced photoluminescence and high birefringence

• Autorzy: Pathak G. , Agrahari K. , Roy A. , Srivastava A. , Strzezysz O. , Garbat K. , Manohar R.

Identyfikatory

DOI

10.1016/j.opelre.2018.10.003

• Języki publikacji: EN

Abstrakty

EN

In the present investigation optical, electro-optical and dielectric properties have been measured for nematic liquid crystal (NLC) material 1550C which is consisted of 4’-(trans, trans-4-alkylbicyclohexyl) carbonates and 4’-(4-(trans,trans-4-alkyl)-4-cyanobicyclohexane, dispersed with fluorescent dye (Benzo 2,1,3 Thiadiazole) in two different concentrations. Photoluminescence has been enhanced for dye dispersed system which is the key finding of this investigation. UV absorbance study has also been performed and found to be increased for composite system. Enhanced birefringence after dispersion of dye into pure NLC is also a prominent result of this investigation. Relative permittivity, threshold voltage and dielectric anisotropy have also been measured and found to be increased. The outcome of the present work may be very useful in the construction of liquid crystal displays (LCDs).

Słowa kluczowe

EN

nematic liquid crystal; fluorescent dye; photoluminescence; birefringence; dielectric anisotropy

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2018
• Tom: Vol. 26, No. 4
• Strony: 317--324
• Opis fizyczny: Bibliogr. 36 poz., rys., wykr.

Twórcy

autor

Pathak G.

• Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, 226007, India

autor

Agrahari K.

• Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, 226007, India

autor

Roy A.

• Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, 226007, India

autor

Srivastava A.

• Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, 226007, India

autor

Strzezysz O.

• Liquid Crystal Group, Military University of Technology, S. Kaliskiego 2, 00-908, Warsaw, Poland

autor

Garbat K.

• Liquid Crystal Group, Military University of Technology, S. Kaliskiego 2, 00-908, Warsaw, Poland

autor

Manohar R.

• Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, 226007, India

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).