1211331-98-4

Upstream product

• 1211331-96-2 10-(4-dodecyloxyphenyl)-10H-phenothiazine 

Downstream Products

• 1211331-99-5 3,7-diformyl-10-(4-dodecyloxyphenyl)phenothiazine 

Relevant academic research and scientific papers

Effect of intermolecular interaction with phenothiazine core on inverted organic photovoltaics by using different acceptor moiety

Six novel small molecules containing phenothiazine as the core moiety of p-type materials were synthesized in combination with PC61BM or PC71BM as n-type materials for bulk heterojunction organic photovoltaic (OPV) cells. Phenothiazine was used as donor building blocks to construct acceptor–donor–acceptor (A–D–A) and A–D–D–A small molecule. We investigated the relationship between the molecular structures, optoelectronic and thermal properties, and their blend film morphologies for OPV applications. We further studied their photophysical properties using a time-dependent density functional theory model and the B3LYP functional. A solution-processed OPV employing PT2-DE combined with the electron acceptor PC61BM and additive DIO achieved optimal device performance, with a short-circuit current of 6.3 mA cm?2, an open-circuit voltage of 770 mV, a fill factor of 0.55, and a corresponding overall conversion efficiency of 2.64%. To the best of our knowledge, this is the best-reported performance of a phenothiazine derivative for OPV application.

Synthesis and properties of phenothiazylene vinylene-based polymers: New organic semiconductors for field-effect transistors and solar cells

A series of new phenothiazylene vinylene-based semiconducting polymers, poly[3,7-(4′-dodecyloxyphenyl)phenothiazylene vinylene] (P1), poly[3,7-(4′-dodecyloxyphenyl)phenothiazylene vinylene-alt-1 ,4-phenylene vinylene] (P2), and poly[3,7-(4′-dodecyloxyphenyl)phenothiazylene vinylene-alt-2,5thienylene vinylene] (P3), have been synthesized via a HornerEmmons reaction. FTIR and 1H NMR spectroscopies confirmed that the configurations of the vinylene groups in the polymers were all-trans (E). The weight-averaged molecular weights (Mw) of P1, P2, and P3 were found to be 27,000, 22,000, and 29,000, with polydispersity indices of 1.91, 2.05, and 2.25, respectively. The thermograms for P1, P2, and P3 each contained only a broad glass transition, at 129, 167, and 155 °C, respectively, without the observation of melting features. UVvisible absorption spectra of the polymers showed two strong absorption bands in the ranges 315-370 nm and 450-500 nm, which arose from absorptions of the phenothiazine segments and the conjugated main chains. Solution-processed fieldeffect transistors fabricated from these polymers showed ptype organic thin-film transistor characteristics. The field-effect mobilities of P1, P2, and P3 were measured to be 1.0 × 10-4, 3.6 × 10-5, and 1.0 × 10-3 cm2 V-1 s-1, respectively, and the on/off ratios were In the order of 102 for P1 and P2, and 103 for P3. Atomic force microscopy and X-ray diffraction analysis of thin films of the polymers show that they have amorphous structures. A photovoltaic device in which a P3/PC71BM (1/5) blend film was used as the active layer exhibited an open-circuit voltage (Voc) of 0.42 V, a short circuit current (Jsc) of 5.17 mA cm-2, a fill factor of 0.35, and a power conversion efficiency of 0.76% under AM 1.5 G (100 mW cm-2) illumination.