biostudies-literatureUnknown21(10)Zhang GTwo light-emitting polyphenylene dendrimers with both hole and electron transporting moieties were synthesized and characterized. Both molecules exhibited pure blue emission solely from the pyrene core and efficient surface-to-core energy transfers when characterized in a nonpolar environment. In particular, the carbazole- and oxadiazole-functionalized dendrimer (<b>D1</b>) manifested a pure blue emission from the pyrene core without showing intramolecular charge transfer (ICT) in environments with increasing polarity. On the other hand, the triphenylamine- and oxadiazole-functionalized one (<b>D2</b>) displayed notable ICT with dual emission from both the core and an ICT state in highly polar solvents. <b>D1</b>, in a three-layer organic light emitting diode (OLED) by solution processing Molecules (Basel, Switzerland)E1400https://www.ebi.ac.uk/biostudies/studies/S-EPMC6273451biostudies-literatureBlue Light Emitting Polyphenylene Dendrimers with Bipolar Charge Transport Moieties.PMC6273451Zhang GBaumgarten MList-Kratochvil EJGehrig DWBlom PWAuer-Berger MMullen KSchollmeyer DfalseBlue Light Emitting Polyphenylene Dendrimers with Bipolar Charge Transport Moieties.Two light-emitting polyphenylene dendrimers with both hole and electron transporting moieties were synthesized and characterized. Both molecules exhibited pure blue emission solely from the pyrene core and efficient surface-to-core energy transfers when characterized in a nonpolar environment. In particular, the carbazole- and oxadiazole-functionalized dendrimer (<b>D1</b>) manifested a pure blue emission from the pyrene core without showing intramolecular charge transfer (ICT) in environments with increasing polarity. On the other hand, the triphenylamine- and oxadiazole-functionalized one (<b>D2</b>) displayed notable ICT with dual emission from both the core and an ICT state in highly polar solvents. <b>D1</b>, in a three-layer organic light emitting diode (OLED) by solution processing 2016-01-01T00:00:00Z2016 Oct2026-07-16T18:16:01.433Z2026-07-09T11:12:13.717ZS-EPMC62734512777561710.3390/molecules21101400