Synthesis and characterization of fluorene derivatives as organic semiconductors for organic field-effect transistor

Recent Advances in Monocomponent Visible Light Photoinitiating Systems Based on Sulfonium Salts

“…Different strategies were developed to redshift the absorption of the sulfonium salts, and an efficient strategy was proposed by using fluorene as a π-conjugated spacer [288]. Fluorene is an excellent electron-donating group that was notably used for the design of chromophores for solar cells [289][290][291][292][293][294][295][296][297][298][299], light emitters for OLEDs [300][301][302][303][304][305][306] and charge transport materials for OFETs [307][308][309][310][311][312][313][314][315] and as fluorescent probes [316][317][318][319][320][321][322][323]. The fluorene scaffold was notably used by Yagci and coworkers to design thioxanthone exhibiting a high molar extinction coefficient and a redshifted absorption compared with PI-PAG [324].…”

Synthesis and Characterization of Fluorenone-Based Donor-Acceptor Small Molecule Organic Semiconductors for Organic Field-Effect Transistors

“…[16][17][18] Among many acceptor units, fluorene-based acceptor moieties (e.g., fluorenone) have received attention because of their chemical and thermal stability, low cost, air stability, easy synthesis and purification. [19][20][21][22][23][24][25][26][27][28][29] Although various fluorenone-based organic semiconductors have been reported, their applications have mostly been limited to photovoltaics, with only a few exceptions. 19,20,[25][26][27][28] For instance, fluorenone-based alternating copolymer (PFN-DPPF) containing a furan-based fused aromatic moiety was reported with hole mobility as high as 0.15 cm 2 /Vs.…”