1376711-86-2

Upstream product

• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 1374310-76-5 4-(2-(tributylstannyl)thiophene-5-yl)-N,N-bis(4-methylphenyl)aniline 
• 1376711-78-2 6-bromo-4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-carbaldehyde 
• 1376711-77-1 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-carbaldehyde 
• 1376711-83-9 6-{5-{4-[N,N-bis(4-methylphenyl)amino]phenyl}thiophene-2-yl}-4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-carbaldehyde 
• 372-09-8 cyanoacetic acid 
• 20440-95-3 N-phenyl-di-p-tolylamine 
• 58047-42-0 4-bromo-N,N-di-p-tolylaniline 

Relevant academic research and scientific papers

ORGANIC DYE, DYE-SENSITIZED METAL OXIDE SEMICONDUCTOR ELECTRODE AND DYE-SENSITIZED SOLAR CELL

An object of the present invention is to provide a dye sensitizer for a solar cell having stability and an excellent conversion efficiency. There is provided a dye sensitizer represented by the following general formula, to which a donor site (D) and an acceptor site (A) are bound via linkers (L1)n and (L2)n: (φ is an aromatic ring with or without heteroatom(s); D is a triphenylamine derivative, a carbazole derivative, a coumarine derivative or an indoline derivative; A is an organic residue having an acidic group; each of L1 and L2 is an optionally substituted divalent alkenyl group, aromatic group or heterocyclic group, and n represents an integer of 0 to 3).

Panchromatic donor-acceptor-acceptor sensitizers based on 4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one as a strong acceptor for dye-sensitized solar cells

Three new donor-acceptor-acceptor near-infrared organic dyes based on 4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one as an additional acceptor were developed and used in dye-sensitized solar cells. By virtue of the simple donor-acceptor-acceptor configuration and systematic tuning of the electron-donating ability of the donor moiety, the absorption spectrum of HIQ3 on TiO2 extended to 900 nm. Remarkably, DSCs sensitized with HIQ3 showed broad incident monochromatic photon-to-current conversion efficiency spectra across the entire visible range and extending into the near-infrared region as far as 1100 nm.