NOVELTY - A fused polycyclic aromatic compound with fluorinated central benzene ring is new.    USE - A fused polycyclic aromatic compound with fluorinated central benzene ring for composition or polymer blend used for semiconducting, charge transport, electrically conducting, photoconducting, photoactive, or light emitting material, including injection layers, charge transport layers, interlayers, planarizing layers, antistatic films, polymer electrolyte membrane (PEM), conducting substrates, and conducting patterns; dye or pigment; in optical, electrooptical, electronic, photoactive, electroluminescent, or photoluminescent device, including organic field effect transistors (OFET), organic thin film transistor (OTFT), organic LED (OLED), organic light emitting transistor (OLET), organic photovoltaic device (OPV) e.g. bulk heterojunction (BHJ) OPV device or inverted BHJ OPV device, organic photodetector (OPD), organic solar cells, dye sensitized solar cell (DSSC), laser diodes, Schottky diodes, photoconductors, photodetectors, and thermoelectric devices; in a component of such a device; or in an assembly comprising such a device or component, including integrated circuit (IC), radio frequency identification (RFID) tags, security devices, flat panel displays, backlights of flat panel devices, electrophotographic devices, electrophotographic recording devices, organic memory devices, sensor devices, biosensors, and biochips (all claimed).    ADVANTAGE - The compound is easy to synthesize, exhibits good processability for device manufacture process and high solubility in organic solvents, and results in high performance materials or devices.    DETAILED DESCRIPTION - A fused polycyclic aromatic compound with fluorinated central benzene ring of formula (I) is new.    A1,A2=X and the other is a single bond;    A3,A4=X and the other is a single bond;    A5,A6=X and the other is a single bond;    A7,A8=X and the other is a single bond;    X=CR1R2, C=CR1R2, SiR1R2, GeR1R2, C=O, or NR1;    R1,R2=H, halo, or (cyclic) 1-50C alkyl in which greater than or equal to 1 non-adjacent CH2 groups are optionally replaced by -O-, -S-, -C(O)-, -C(O)O-, -O-C(O)-, -O-CO(O)O-, -SO2-, -SO3-, -NR0-, -SiR0R00-, -CF2-, -CR0=CR00-, - CY1=CY2-, or -CC- in such a manner that O and/or S atoms are not linked directly to one another, and greater than or equal to 1, but not all, H atoms are optionally replaced by F, Cl, Br, I, or CN, or denotes monocyclic or polycyclic aryl or heteroaryl, each of which is optionally substituted by Rs and has 4-30 ring atoms;    p,q=0, 1, or 2;    Ar21-Ar24=monocyclic or polycyclic 4-20C aromatic or heteroaromatic group optionally substituted by greater than or equal to 1 Rs groups;    Rs=F, Br, Cl, -CN, -NC, -NCO, -NCS, -OCN, -SCN, -C(O)NR0R00, -C(O)X0, -C(O)R0, -C(O)OR0, -NH2, -NR0R00, -SH, -SR0, -SO3H, -SO2R0, -OH, -NO2, -CF3, -SF5, optionally substituted 1-40C silyl, carbyl, or hydrocarbyl optionally substituted by hetero atoms;    R0,R00=H or optionally substituted 1-40C carbyl or hydrocarbyl, preferably H or 1-12C alkyl;    Y1,Y2=H, F, Cl, or CN; and    X0=F, Cl, or Br provided that if Ar21 and Ar22 are benzene rings, p and q are 0, and A1-A4 are CR1R2, then R1 and R2 are not perfluoroalkyl.    INDEPENDENT CLAIMS are included for:    (1) composition or polymer blend comprising compounds or polymers having semiconducting, charge transport, hole or electron transport, hole or electron blocking, electrically conducting, photoconducting, or light emitting properties;    (2) formulation comprising the compounds or the composition or polymer blend, and organic solvents;    (3) monomer of formulae R23-(Ar1)a-U'-(Ar2)c-R24 (VIa) or R23-U'-(Ar1)a-U'-R24 (VIb); and    (4) preparation of conjugated polymer which involves coupling monomers in which R23 and R24 are selected from Cl, Br, I, -B(OZ2)2, and/or -Sn(Z4)3, with each other and/or with monomers selected from formulae R23-(Ar1)a-Ac-(Ar2)cR24 (VIII), R23-Ar1-R24 (IX), R23-Ar3-R24 (X), and/or R23-Ac-R24 (XI) in an aryl-aryl coupling reaction.    R23,R24=H, Cl, Br, I, O-tosylate, O-triflate, O-mesylate, O-nona-flate, -SiMe2F, -SiMeF2, -O-SO2Z1, -B(OZ2)2 , -CZ3=C(Z3)2, -CCH, -CCSi(Z1)3, -ZnX0, and/or -Sn(Z4)3; and    Z1-Z4=optionally substituted alkyl and/or aryl provided that 2 groups of Z2 may also together form 2-20 C cycloboronate together with B and O atoms.