Janus organic semiconductor nanoparticles prepared by simple nanoprecipitation

Nanoparticles (NPs) of donor–acceptor organic semiconductors are produced by a one-step nanoprecipitation with Janus morphology. Electron donor P3HT was blended electron acceptor PC61BM in tetrahydrofuran and then precipitated water, first surfactant second without surfactant. Cryogenic transmission microscopy reveals an internal structure at high magnification, for NPs which have, the past, been reported to have molecularly intermixed Synchrotron-based scanning X-ray confirmed segregation photoluminescence experiments showed efficient transfer from PC61BM. Organic field effect transistors were fabricated these that positive charges can be efficiently transported through thin films. This behavior proves possess electron-accepting face (the face) able transport electrons hole-accepting conduction holes. Finally, deposition silver via photoreduction salt (AgNO3(aq)) demonstrated, as proof concept. These show potential photovoltaics but also photocatalytic reactions reduction oxidation occur opposite sides nanoreactor individual NPs).