title: Electroluminescent networks via photo "click" chemistry.
abstract: The use of thiol-ene click chemistry is demonstrated for the first time as a suitable method for cross-linking thin films of 4-phenylethenyl end-capped poly(fluorene). Cross-linking was accomplished by a simple, brief UV curing step at modest temperatures. This chemistry provides an advantage over similar schemes employed for cross-linking conjugated polymers since it does not require elevated temperature or produce potentially detrimental side products. Thiol-ene cross-linking was found to preserve the emissive color integrity of the poly(fluorene) films and allowed for facile photopatterning of the active polymer layer. Furthermore, the investigated cross-linking chemistry was shown to be fully compatible with fabrication of polymer light-emitting diodes (PLEDs) whose performance was comparable to noncross-linked devices. Multicolor PLEDs were also demonstrated by taking advantage of the photopatternability of the thiol-ene based system.
authors: Department of Polymer Science and Engineering, University of Massachusetts Amherst, Conte Center for Polymer Research, 120 Governors Drive, Amherst, Massachusetts 01003, USA.
authors: Andrew R
authors: AR
authors: Davis
authors: Janet A
authors: JA
authors: Maegerlein
authors: Kenneth R
authors: KR
authors: Carter