Novel Strategy for Photopatterning Emissive Polymer Brushes for Organic Light Emitting Diode Applications.

Autor: Page ZA; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States., Narupai B; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States.; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States., Pester CW; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States., Bou Zerdan R; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States., Sokolov A; The Dow Chemical Company, Midland, Michigan 48674, United States., Laitar DS; The Dow Chemical Company, Midland, Michigan 48674, United States., Mukhopadhyay S; The Dow Chemical Company, Midland, Michigan 48674, United States., Sprague S; The Dow Chemical Company, Midland, Michigan 48674, United States., McGrath AJ; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States., Kramer JW; The Dow Chemical Company, Midland, Michigan 48674, United States., Trefonas P; The Dow Electronic Materials Company, 455 Forest Street, Marlborough, Massachusetts 01752, United States., Hawker CJ; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States.; Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States.
Jazyk: angličtina
Zdroj: ACS central science [ACS Cent Sci] 2017 Jun 28; Vol. 3 (6), pp. 654-661. Date of Electronic Publication: 2017 Jun 07.
DOI: 10.1021/acscentsci.7b00165
Abstrakt: A light-mediated methodology to grow patterned, emissive polymer brushes with micron feature resolution is reported and applied to organic light emitting diode (OLED) displays. Light is used for both initiator functionalization of indium tin oxide and subsequent atom transfer radical polymerization of methacrylate-based fluorescent and phosphorescent iridium monomers. The iridium centers play key roles in photocatalyzing and mediating polymer growth while also emitting light in the final OLED structure. The scope of the presented procedure enables the synthesis of a library of polymers with emissive colors spanning the visible spectrum where the dopant incorporation, position of brush growth, and brush thickness are readily controlled. The chain-ends of the polymer brushes remain intact, affording subsequent chain extension and formation of well-defined diblock architectures. This high level of structure and function control allows for the facile preparation of random ternary copolymers and red-green-blue arrays to yield white emission.
Databáze: MEDLINE