Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Oligothiophenes channels

Another process which has to be considered is the conformation change from the nonrelaxed nonplanar to the planar excited state, which could be connected with a fast increase of absorption. The most important radiationless decay process in oligothiophenes is ISC. Therefore, a fast channel of ISC was suggested, which is effective before the lowest vibronic state of Si is occupied. The fast decay of the AD(f) kinetics is caused by an effective formation of triplets. [Pg.140]

Stranski-Krastanov growth mode 219 sub-micron channels 485 substituted oligothiophenes 474 substrates - passivation 442 substrates - Si02 substrate 429 surface... [Pg.633]

L6pez Navarrete et al. reported that the introduction of cyano groups in an oligothiophene as presented in 2.83 enhances the electron affinity of the oligomers, which stabilizes the radical anions or dianions and promotes them to prospective n-channel materials [176]. The application of some of these dicyano derivatives in OFETs has been reviewed [177]. [Pg.29]

FET applications of thiophene-based materials have a two-decade history. Pioneering work was conducted by Koezuka and co-workers [33], The device utilized electrochemically synthesized polythiophene as the channel layer, its mobility being 10 cm V s . This work was followed by Garnier and co-workers [13], who used sexithiophene as the channel layer and recorded an enhanced mobility of 10 cm s . Akimichi et al. [14] made FET devices using alkyl-capped oligothiophenes and mentioned that the alkyl substitution not only improves the chemical stability of the oligothiophenes but also enhances the mobility. A similar substitution effect was also observed with other oligomers [34, 35]. [Pg.483]


See other pages where Oligothiophenes channels is mentioned: [Pg.577]    [Pg.578]    [Pg.124]    [Pg.220]    [Pg.754]    [Pg.124]    [Pg.507]    [Pg.4]    [Pg.13]    [Pg.470]    [Pg.480]    [Pg.486]    [Pg.707]    [Pg.191]    [Pg.192]    [Pg.198]    [Pg.200]    [Pg.403]    [Pg.268]    [Pg.310]    [Pg.316]    [Pg.26]    [Pg.1552]    [Pg.515]    [Pg.330]    [Pg.396]    [Pg.611]    [Pg.620]    [Pg.624]    [Pg.312]    [Pg.421]    [Pg.357]    [Pg.42]    [Pg.99]    [Pg.268]    [Pg.113]    [Pg.193]    [Pg.256]    [Pg.355]    [Pg.420]    [Pg.445]    [Pg.459]    [Pg.460]   
See also in sourсe #XX -- [ Pg.413 , Pg.417 ]




SEARCH



Oligothiophene

Oligothiophenes

© 2024 chempedia.info