1295502-20-3

Usage

Uses

Used in Organic Electronics:
5,5-Bis(3,7-dimethyloctyl)-5H-dithieno[3,2-b:2',3'-d]pyran is used as an active layer material in organic solar cells and field-effect transistors for efficiently converting light into electricity. Its high solubility and good film-forming properties make it a popular candidate for solution-processed electronic devices.
Used in Photovoltaic Devices:
In the photovoltaic industry, 5,5-Bis(3,7-dimethyloctyl)-5H-dithieno[3,2-b:2',3'-d]pyran is used as a key component in the development of organic solar cells. Its excellent charge transport properties and high absorption coefficient in the visible range contribute to the improved performance and efficiency of these solar cells.

Upstream product

• 636588-79-9 2,6-dibromo-4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one 
• 1295502-19-0 C₂₉H₄₈O₂S₂ 
• 1295502-12-3 5H-dithieno[3,2-b:2',3'-d]pyran-5-one 
• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 474416-61-0 bis(2-iodo-3-thienyl)methanone 
• 474416-59-6 bis(2-iodothiophen-3-yl)methanol 
• 498-62-4 3-thiophene carboxaldehyde 

Relevant academic research and scientific papers

Facile synthesis of a narrow-bandgap strong-donor-alt-strong-acceptor copolymer of poly(5,6-difluorobenzo-[c][1,2,5]-thiadiazole-alt-5H-dithieno[3,2-b:2′,3'-d]pyran) via direct C-H arylation polymerization

A narrow bandgap D-A conjugated polymer based on 5H-dithieno [3,2-b:2′,3'-d]pyran alternating with 5,6-difluoro-2,1,3-benzothiadiazole (denoted as PDFBT-alt-DTP) was synthesized via direct C-H arylation polymerization (DAP) as an atomically efficient protocol. The optimal reaction condition for the DAP gave the target polymers with moderate number-average molecular weights (Mn) using optimized catalytic condition of Pd2 (dba)3/(o-MeOPh)3P/PivOH/K2CO3 in o-xylene. UV-vis-NIR absorption spectra of the obtained polymers show the presence of aggregation and interchain interaction in thin films. 1H-NMR spectroscopic analysis indicates good C-H selectivity corresponding to an alternating strong-donor-alt-strong-acceptor conjugated backbone. The hole mobility of the resulting polymers in a magnitude of 10?4 cm2V?1s?1 was reached in bottom-gate top-contact field-effect transistors fabricated and tested under ambient conditions.

POLYMER COMPOUND

The invention relates to a polymer compound. A photoelectric conversion device that contains the polymer compound having a structural unit represented by formula (1) has high photoelectric conversion efficiency. (wherein, X1 and X2 are the same or different and represent a nitrogen atom or -CH-. Y1 represents a sulfur atom, an oxygen atom, a selenium atom, -N(R1)- or -CR2-CR3-. R1, R2 and R3 are the same or different and represent a hydrogen atom or a substituent. W1 represents a cyano group, a monovalent organic group having a fluorine atom or a halogen atom. W2 represents a cyano group, a monovalent organic group having a fluorine atom, a halogen atom or a hydrogen atom.

Compound used for forming high-molecular compound

The present invention provides a macromolecular compound by which the short-circuit current density and the photoelectric conversion efficiency are enhanced when the macromolecular compound is used in an organic layer contained in a photovoltaic cell. Specifically, the present invention provides a macromolecular compound having a structural unit represented by Formula (5): wherein R52 and R53 are the same as or different from each other and represent hydrogen atoms, halogen atoms, alkyl groups, alkyl oxygen radicals, alkyl sulfonium, aryl groups, aryl oxygen radicals, aryl sulfonium, aryl alkyl, aryl alkyl oxygen radicals, acyl groups, acyloxy, acylamino, imide groups, amidogen, substituted amino, substituted silicyl, substituted silicon alkyl oxygen radicals, substituted silicon alkyl harvard, silicon alkyl amine, univalent heterocyclic radical, heterocyclic oxygen radicals, heterocyclic sulfonium, aryl alkenyl, aryl alkynyl, carboxyl or cyan; W1 and W2 are the same as or different from each other and represent hydrogen atoms, halogen atoms, alkyl sulfonate base, aryl sulfonic acid ester base, aryl alkyl sulfonate base, boric acid ester residues, matte methyl, scales base, Phosphonic acid ester methyl, single halogenated methyl, boric acid residues, formyl groups, vinyl or organic tin residues.

METAL COMPLEXES AND ORGANIC SOLAR CELL COMPRISING THE SAME

The present invention provides a metal complex, which comprises a structure represented by chemical formula 1, and an organic solar cell including the same.COPYRIGHT KIPO 2016

UNIMOLECULAR AND ORGANIC SOLAR CELL COMPRISING THE SAME

Provided are a single molecule and an organic solar cell including the single molecule. Specifically, the single molecule has an end represented by chemical formula 1 and includes at least two units selected from the group consisting of units represented by chemical formula 2, wherein the two units are the same or different from each other.COPYRIGHT KIPO 2015

PROCESS FOR PRODUCING FUSED-RING AROMATIC COMPOUND, AND CONJUGATED POLYMER

The invention addresses a problem of purifying a monomer to be a precursor according to a simpler and milder method so as to obtain a polymer having a higher molecular weight. The invention relates to a method for producing a condensed polycyclic aromatic compound having n active groups (wherein n is an integer of 1 or more and 4 or less), which comprises bringing a composition containing the condensed polycyclic aromatic compound and a solvent into contact with zeolite.

Synthesis of 5H-dithieno[3,2-b:2′,3′-d]pyran as an electron-rich building block for donor-acceptor type low-bandgap polymers

We describe the detailed synthesis and characterization of an electron-rich building block, dithienopyran (DTP), and its application as a donor unit in low-bandgap conjugated polymers. The electron-donating property of the DTP unit was found to be the strongest among the most frequently used donor units such as benzodithiophene (BDT) or cyclopentadithiophene (CPDT) units. When the DTP unit was polymerized with the strongly electron-deficient difluorobenzothiadiazole (DFBT) unit, a regiorandom polymer (PDTP-DFBT, bandgap = 1.38 eV) was obtained. For comparison with the DTP unit, polymers containing alternating benzodithiophene (BDT) or cyclopentadithiophene (CPDT) units and the DFBT unit were synthesized (PBDT-DFBT and PCPDT-DFBT). We found that the DTP based polymer PDTP-DFBT shows significantly improved solubility and processability compared to the BDT or CPDT based polymers. Consequently, very high molecular weight and soluble PDTP-DFBT can be obtained with less bulky side chains. Interestingly, PDTP-DFBT shows excellent performance in bulk-heterojunction solar cells with power conversion efficiencies reaching 8.0%, which is significantly higher than PBDT-DFBT and PCPDT-DFBT based devices. This study demonstrates that DTP is a promising building block for high-performance solar cell materials.