title: Difluorinated 6,13-Bis(triisopropylsilylethynyl)pentacene: Synthesis, Crystallinity, and Charge-Transport Properties.
abstract: Fluorination has been demonstrated to improve stability and processing in thiophene-containing small-molecule semiconductors. Here, the impact of partial fluorination on these parameters in a pentacene derivative is examined. Although the improvement in photostability is not as dramatic, there is a clear improvement in the stability of the chromophore upon fluorination. The improvement in processability is more dramatic; devices formed by spin-coating with the fluorinated derivative perform substantially better than those formed from the nonfluorinated compound.
authors: LPICM, Ecole Polytechnique, CNRS, 91128 Palaiseau (France); Current address: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712 (Republic of Korea). chang-hyun.kim@polytechnique.edu.
authors: Chang-Hyun
authors: CH
authors: Kim
authors: Htay
authors: H
authors: Hlaing
authors: Marcia M
authors: MM
authors: Payne
authors: Sean R
authors: SR
authors: Parkin
authors: John E
authors: JE
authors: Anthony
authors: Ioannis
authors: I
authors: Kymissis
keywords: charge transport; crystal structure; organic field-effect transistors; pentacenes; semiconductors