4H-Cyclopenta[1,2-b:5,4-b']dithiophene CAS NO.389-58-2

Molecular weight:178.27 g/mol
Melting point:71.0 to 75.0°C

4H-cyclopenta[2,1-b:3,4-b′]dithiophene, also known as CPDT, a rigid coplanar structure favouring π π intermolecular interactions with good electron-donating properties, has been one of the most attractive building blocks for organic field effect transistors and organic electronics. The five-member ring in the middle also offer the function to have side-chain manipulation to enhance solubility in solutions for device fabrications, morphology and polymer processing. One of the intensively studied polymer for organic electrons, PCPDTBT, with the alternating CPDT and 2,1,3- benzothiadiazole (BT) units, has demonstrated device performance of PCE over 6%

We have sublimation apparatus

Recently, CPDT backboned polymer CPE-K has been incorporated as the hole transporting layer (HTL) in polymer/fullerene BHJ and provskite solar cells. The devices using CPE-K HTL show competitive performance compared with that using PEDOT:PSS HTL. As an alternative to PEDOT:PSS, the use of CPE-K as an organic hole transport material enables the formation of uniform perovskite films with complete surface coverage for an efficient, stable perovskite/fullerene planar heterojunction solar cell [1, 2]

4H-cyclopenta[2,1-b:3,4-b′]dithiophene is the intermediate for the synthesis of 4,4'-alkyl-cyclopenta[2,1-b:3,4-b′]dithiophene [6].
Classification / Family: Monomers, Building blocks, Heterocycles, Chemical synthesis for low-band gap polymers, Thiophene, Intermediates for high performance Organic Photovoltaics, OFETs, Polymer solar cells

 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

We have awell-equipped analytical laboratory for qualification of our products. In addition to our in-house capabilities we maintain a close relationship with the nearby Institute and have access to additional analytical equipment(NMR,LC-MS,GC-MS…)at the Institute.

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