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• 1017260-46-6 5''-(4-(diphenylamino)phenyl)-2,2';5',2''-terthiophen-5-yl-carbaldehyde 
• 372-09-8 cyanoacetic acid 
• 58268-08-9 2-(2-thienyl)-1,3-dioxolane 
• 1309674-20-1 4-(5′-bromo-2,2′-bithiophen-5-yl)-N,N-diphenylaniline 
• 201802-67-7 4-(diphenylamino)phenyl boronic acid 
• 4805-22-5 5,5'-dibromo-2,2'-bisthiophene 
• 1040281-83-1 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxaldehyde 

Relevant academic research and scientific papers

Elucidating the structure-property relationships of donor-π-acceptor dyes for dye-sensitized solar cells (DSSCs) through rapid library synthesis by a one-pot procedure

The creation of organic dyes with excellent high power conversion efficiency (PCE) is important for the further improvement of dye-sensitized solar cells. We wish to describe the rapid synthesis of a 112-membered donor-π-acceptor dye library by a one-pot procedure, evaluation of PCEs, and elucidation of structure-property relationships. No obvious correlations between ε, and the η were observed, whereas the HOMO and LUMO levels of the dyes were critical for η. The dyes with a more positive EHOMO, and with an ELUMOsc, and it was the most important parameter for a high η. The above criteria of EHOMO and E LUMO should be useful for creating high PCE dyes; nevertheless, that was not sufficient for identifying the best combination of donor, π, and acceptor blocks. Combinatorial synthesis and evaluation was important for identifying the best dye. Combinatorial chemistry: A 112-membered donor-π-acceptor dye library was rapidly constructed by a one-pot, three-component coupling procedure (see scheme, SM=Suzuki-Miyaura). The evaluation of absorption spectroscopic and electrochemical measurements of all synthesized dyes, and cell performances of the selected 54 dyes were performed. The dyes with a more positive EHOMO, and with an E LUMO-0.80 V, exerted higher power conversion efficiencies.

Synthesis and photovoltaic properties of organic sensitizers incorporating a thieno[3,4-c]pyrrole-4,6-dione moiety

Novel organic sensitizers containing a thieno[3,4-c]pyrrole-4,6-dione (TPD) moiety with triphenylamine or julolidine as the electron donor have been designed and synthesized for quasi-solid-state dye-sensitized solar cells (DSSCs). For comparison, two organic dyes based on a terthiophene spacer have also been synthesized. The absorption, electrochemical and photovoltaic properties of all sensitizers have been systematically investigated. We found that the incorporation of TPD is highly beneficial to broaden the absorption spectra of the organic sensitizers and prevent the intermolecular interaction. Therefore, the charge recombination possibility is reduced, which is revealed by the controlled intensity modulated photovoltage spectroscopy. A quasi-solid-state DSSC based on sensitizer FNE38 with TPD and triphenylamine moieties demonstrates a solar energy conversion efficiency of 4.71% under standard AM 1.5G sunlight without the use of coadsorbant agents.