2,2'-((2Z,2'Z)-(((4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl)bis(4-(heptan-3-yloxy)thiophene-5,2-diyl))bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1- CAS NO.000-00-0

Chemical name:2,2'-((2Z,2'Z)-(((4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl)bis(4-(heptan-3-yloxy)thiophene-5,2-diyl))bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile

COTIC-4F has a molecular configuration of A−D'−D−D'−A that is based on an electron rich internal core of cyclopentadithiophene (CPDT) as the central donor unit flanked with alkoxythienyl units, terminated with two 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC-2F) acceptor units.

Absorption:λ_max 875 nm (solution); 975 nm (Film)

We have sublimation apparatus

COTIC-4F is a narrow bandgap n-type molecular semiconductors extending its absorption from 700 nm to near infrared range (about 1100 nm) with an optical bandgap of ~1.1 eV. COTIC-4F can be used as active layer material for near infrared (NIR) responsive organic solar cells (OSCs ) and organic photodetectors (OPDs ).

 Acros focus on Organic Light Emitting Device (OLED), Organic Photovoltaics (OPV), Organic Thin Film Transistors (OTFT), Organic Radio Frequency Identification (ORFID), Organic Photo Conductor (OPC) and Organic Ion-Exchange Membrane (OIEM) .
Thiophene , Fluorene , Carbazole , Dithienocyclopenta/pyrrole/silole , Benzothiadiazole , Diketo-pyrrolopyrrole , Thienopyrroledione , Benzodithiophene , Thienovinylthiophene ,  Indacenodithiophene , Benzobisthiadiazole ,  Naphthothiadiazole , Naphthalenediimide , Perylenediimide , Isoindigo , Pyridinethiadiazole , Thieno[3,4-b]thiophene , etc