DGIST Scholar: Molecular Design and Photovoltaic Performances of Organic Dyes Containing Triphenylamine for Dye-Sensitized Solar Cell

Cited time in webofscience

Cited time in scopus

Molecular Design and Photovoltaic Performances of Organic Dyes Containing Triphenylamine for Dye-Sensitized Solar Cell

Title: Molecular Design and Photovoltaic Performances of Organic Dyes Containing Triphenylamine for Dye-Sensitized Solar Cell

Author(s): Jung, Mi Ran ; Jo, Hyo Jeong ; Yang, Hyun Sik ; Kim, Hyojeong ; Kang, Jin Kyu ; Kim, Dae Hwan ; Ahn, Kwang-Soon ; Kim, Jae Hong

Subject: Active Area ; Chromophores ; Conversion Efficiency ; Dye-Sensitized Solar Cell ; Dye-Sensitized Solar Cells (DSCs) ; Electron Acceptor ; Fill-Factor ; Impedance Analysis ; Life-Times ; Molecular Design ; Nano-Structured Materials ; Open Circuit Photo Voltage ; Organic Dye ; Organic Photosensitizers ; Photo-Anode ; Photoelectrochemical Cells ; Photonics ; Photosensitizers ; Photovoltaic Effects ; Photovoltaic Performance ; Photovoltaic Performances ; Photovoltaic Property ; Power Conversion Efficiencies ; Recombination Kinetics ; Solar Cells ; Solar Power Generation ; TiO ; Titanium Dioxide ; Triphenyl Amines ; Triphenylamine Chromophores

Abstract: Organic dyes containing multi-acceptors/anchors in a chromophore were synthesized for use in a dye-sensitized solar cell. The photovoltaic properties of organic dyes composed of different acceptor in their chromophores were measured to identify the effects on the DSSC performance. The organic dye, 4 containing multi-cyanoacrylic acid as the electron acceptor showed a power conversion efficiency of 4.7% under AM 1.5 illumination (100mWcm-2) in an photo active area of 0.24cm2, short circuit current density of 12.9mAcm-2, open circuit photo voltage of 0.62V and a fill-factor of 60%. The retarded recombination kinetics from TiO2 electrode to electrolyte enhanced the electron life time of organic dye, 4 in the photoanode in DSSC that was well confirmed with the impedance analysis.