ORGANIC ELECTRONIC DEVICES AND POLYMERS, INCLUDING PHOTOVOLTAIC CELLS AND DIKETONE-BASED POLYMERS
申请人:Brown Christopher T.
公开号:US20110204341A1
公开(公告)日:2011-08-25
Polymers which can be used in p-type materials for organic electronic devices and photovoltaic cells. Compounds, monomers, dimers, trimers, and polymers comprising:
Good photovoltaic efficiency and lifetime can be achieved. The R group can provide solubility, environmental stability, and fine tuning of spectroscopic and/or electronic properties. Different polymer microstructures can be prepared which encourage multiple band gaps and broad and strong absorptions. The carbonyl can interact with adjacent thiophene rings to provide backbone with rigidity, induce planarity, and reduce and/or eliminate intramolecular chain twisting defects. Polymers comprising benzodithiophene and/or benzothiadiazole structures can show particularly high performance.
申请人:NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-
NATUURWETENSCHAPPELIJK ONDERZOEK TNO
公开号:EP3788030A1
公开(公告)日:2021-03-10
DIELS-ALDER RING-OPENING PROCESS
申请人:Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
公开号:US20210115005A1
公开(公告)日:2021-04-22
The invention is directed to a process for the ring-opening of a cycloadduct obtainable from a reaction of a furanic compound and a diene, said process comprising contacting the cycloadduct with an acidic mixture comprising sulfuric acid and an activating agent to obtain a ring-opened product. The present invention is particularly directed a continuous process.