1351663-33-6Relevant academic research and scientific papers
Photosensitive dye of D-D-pi-A structure with triphenylamine as two-electron donor as well as preparation method and application of photosensitive dye
-
, (2017/11/16)
The invention discloses a photosensitive dye of a D-D-pi-A structure with triphenylamine as a two-electron donor as well as a preparation method and application of the photosensitive dye. According to the photosensitive dye, triphenylamine is adopted as the two-electron donor, 3,4-ethylene dioxythiophene is adopted as a pi conjugate bridge and cyanoacetic acid is adopted as an electron donor, the chemical structural formula of the photosensitive dye is as shown in the specification, and in the formula, R1 is a group of vinyl, butadienyl or p-divinyl benzene, and R2 is methoxy or hexyloxy. The photosensitive dye disclosed by the invention is diverse in structure and is capable of improving the dyeing property, and thus relatively high photoelectric conversion efficiency is achieved. The invention further provides a corresponding preparation method of the photosensitive dye. The photosensitive dye is prepared from a primary electron donor and a secondary electron donor of different structures through reaction. The preparation method is simple in process, low in preparation cost and environmental-friendly. The invention further provides corresponding application of the photosensitive dye. The photosensitive dye can be used for preparing dye-sensitized solar cells, and tests show about 6% of photoelectric conversion efficiency is achieved.
Bis-donor-bis-acceptor tribranched organic sensitizers for dye-sensitized solar cells
Abbotto, Alessandro,Leandri, Valentina,Manfredi, Norberto,De Angelis, Filippo,Pastore, Mariachiara,Yum, Jun-Ho,Nazeeruddin, Mohammad K.,Graetzel, Michael
, p. 6195 - 6205 (2011/12/05)
A new class of tribranched dye-sensitized solar cell (DSC) sensitizers carrying two conjugated donors and two acceptor/anchoring groups is introduced. The approach leads to significantly different optical properties and enhanced stability with respect to related di- and monobranched dyes and yields power conversion efficiencies of up to 5.05 %, which is possibly limited by the computed nonoptimal dye packing on the semiconductor surface.
