1422273-16-2

Upstream product

• 1187207-24-4 2-(3,4,5-tris-n-dodecyloxyphenyl)dithieno[3,2-b:2',3'-d]thiophene 
• 1422273-19-5 6-[3,4,5-tris(dodecyloxy)phenyl]-2-tributylstannyl dithieno[3,2-b:2',3'-a]thiophene 
• 1422273-21-9 5-(5-(6-[3,4,5-tris(dodecyloxy)phenyl]dithieno[3,2-b:2',3'-a]thiophenyl)thiophen-2-yl)thiophene-2-carbaldehyde 
• 372-09-8 cyanoacetic acid 
• 654065-52-8 1-bromo-3,4,5-tris-n-dodecyloxybenzene 

Relevant academic research and scientific papers

Synthesis of metal-free organic dyes containing tris(dodecyloxy)phenyl and dithienothiophenyl units and a study of their mesomorphic and photovoltaic properties

In this study we synthesized three metal-free organic dyes (Cpd11, Cpd16, and Cpd22) featuring 3,4,5-tris(dodecyloxy)phenyl and cyanoacrylic acid moieties as electron-donor and electron-acceptor/anchoring units, respectively, linked through various dithienothiophenyl conjugated spacers. Cpd16 exhibits mesomorphic properties, confirmed through polarizing optical microscopy, differential scanning calorimetry, and X-ray diffraction (XRD), due to the appropriate ratio of the lengths of its flexible chain to its rigid core. Molecular modeling of Cpd16, and its d-spacing determined from XRD data, verified the existence of a tilt angle in the SmC phase. Among these metal-free organic dyes, a dye-sensitized solar cell incorporating Cpd16 exhibited the best performance, presumably because of its better packing and its mesomorphic properties; the power conversion efficiency was 3.72% (Voc=0.58 V; Jsc=9.98 mA cm-2; FF=0.65) under simulated AM 1.5 irradiation (100 mW cm-2).