Infrared photoexcitation and doping studies of poly(3-methylthienylene)

Correlating charge and thermoelectric transport to paracrystallinity in conducting polymers

“…4b, there are at least three orders of magnitude where σ > 0.1 S/cm at which transport can be described well by Boltzmann transport equations. Note that for highly doped conducting P3HT and PBTTT (σ > 100 S cm −1 ), bipolarons (spinless charge carriers) can be formed within the polymer backbones 23 , which then possibly cause a deviation from Fermi-Dirac statistics.…”

Optical properties of radical cation salts derived from the TTF molecule: Evidence for electronic correlations and phase transitions in organic conductors

“…In charge localization (see light arrows in Table 3), the lifting of the ground state degeneracy introduces a new gap Ac, which in the first approximation will add to the Hubbard gap A,,, because they act in phase together (Kim, Hotta and Heeger, 1987). This effect will occur, in particular, when the anion ordering process will induce a new periodicity (dimers tetramers); if there is no symmetry change a kind of structureless phase transition associated with an electronic localization can be proposed (Coulon, Parkin and Laversanne, 1985).…”

The Effects of Crystallinity on Charge Transport and the Structure of Sequentially Processed F4TCNQ‐Doped Conjugated Polymer Films

“…[1][2][3][4][5][6][7]. As with traditional inorganic semiconductors, the electronic properties of semiconducting polymers can be effectively tuned through doping [8][9][10][11][12][13], by either removing (p-type doping) or adding (n-type doping) an electron to the polymer backbone. One of the most common ways to dope a semiconducting polymer is via the use of a molecular dopant, such as a small molecule, that can reduce or (much more commonly) oxidize the polymer backbone.…”

“…One of the most common ways to dope a semiconducting polymer is via the use of a molecular dopant, such as a small molecule, that can reduce or (much more commonly) oxidize the polymer backbone. [8,[14][15][16][17][18][19]. Indeed, the addition of small amounts of molecular dopants can improve the performance of polymer-based bulk heterojunction solar cells as the doped carriers fill intrinsic traps, [20][21][22][23][24] and more extensive molecular doping can vastly improve conductivity and carrier mobility for transistor [13,25] or thermoelectric [26,27] applications.…”