Optoelectronic and current-voltage studies for novel coumarin dyes

K. V. Basavarajappa, Y. Arthoba Nayaka, H. T. Purushothama, M. M. Vinaya, Albin Antony, P. Poornesh

Research output: Contribution to journalArticle

Abstract

Coumarin derivatives are used in a wide range of applications, such as optoelectronics, photovoltaics and dye lasers. Therefore they have attracted significant research interest. In this regard, novel coumarin dye molecules were synthesised and characterised by spectroscopic techniques. The synthesised dyes were studied for optical (linear and nonlinear), frontier molecular orbital analysis (using cyclic voltammetry and DFT calculations) and the current-voltage (I-V) studies for photosensitization behaviour on TiO2 nanoparticles. The TiO2 nanoparticles were synthesised by the sol-gel method and characterised by XRD, EDAX and SEM analysis. The results showed that the dye molecules possess good light-absorbing capability with a high molar absorption coefficient and also exhibited the good nonlinear optical (NLO) response. Moreover, the I-V characteristics suggest the efficacy of synthesised dyes for photovoltaic applications.

Original languageEnglish
JournalInternational Journal of Environmental Analytical Chemistry
DOIs
Publication statusAccepted/In press - 01-01-2019

Fingerprint

coumarin
Optoelectronic devices
dyes
dye
Coloring Agents
Dyes
Electric potential
solar energy
Nanoparticles
nanoparticles
Dye Lasers
Photosensitivity Disorders
Coumarins
Molecules
Dye lasers
Molecular orbitals
Polymethyl Methacrylate
Fourier Analysis
Discrete Fourier transforms
Sol-gel process

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal
  • Soil Science
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Basavarajappa, K. V. ; Arthoba Nayaka, Y. ; Purushothama, H. T. ; Vinaya, M. M. ; Antony, Albin ; Poornesh, P. / Optoelectronic and current-voltage studies for novel coumarin dyes. In: International Journal of Environmental Analytical Chemistry. 2019.
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Optoelectronic and current-voltage studies for novel coumarin dyes. / Basavarajappa, K. V.; Arthoba Nayaka, Y.; Purushothama, H. T.; Vinaya, M. M.; Antony, Albin; Poornesh, P.

In: International Journal of Environmental Analytical Chemistry, 01.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optoelectronic and current-voltage studies for novel coumarin dyes

AU - Basavarajappa, K. V.

AU - Arthoba Nayaka, Y.

AU - Purushothama, H. T.

AU - Vinaya, M. M.

AU - Antony, Albin

AU - Poornesh, P.

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AB - Coumarin derivatives are used in a wide range of applications, such as optoelectronics, photovoltaics and dye lasers. Therefore they have attracted significant research interest. In this regard, novel coumarin dye molecules were synthesised and characterised by spectroscopic techniques. The synthesised dyes were studied for optical (linear and nonlinear), frontier molecular orbital analysis (using cyclic voltammetry and DFT calculations) and the current-voltage (I-V) studies for photosensitization behaviour on TiO2 nanoparticles. The TiO2 nanoparticles were synthesised by the sol-gel method and characterised by XRD, EDAX and SEM analysis. The results showed that the dye molecules possess good light-absorbing capability with a high molar absorption coefficient and also exhibited the good nonlinear optical (NLO) response. Moreover, the I-V characteristics suggest the efficacy of synthesised dyes for photovoltaic applications.

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