Spraying light: ambient-air fabrication of large-area emissive devices on complex-shaped surfaces.
Light-emitting electrochemical cells, featuring uniform and efficient light emission over areas of 200 cm(2) , are fabricated under ambient air with a for-the-purpose developed "spray-sintering" process. This fault-tolerant fabrication technique can also produce multicolored emission patterns via sequential deposition of different inks based on identical solvents. Significantly, additive spray-sintering using a mobile airbrush allows a straightforward addition of emissive function onto a wide variety of complex-shaped surfaces, as exemplified by the realization of a light-emitting kitchenware fork.
The Organic Photonics and Electronics Group, Department of Physics, Umeå University, SE-901 87, Umeå, Sweden; LunaLEC AB, Tvistevägen 47, PO Box 7970, SE-907 19, Umeå, Sweden.
Andreas
A
Sandström
Amir
A
Asadpoordarvish
Jenny
J
Enevold
Ludvig
L
Edman
D000388:Air; D003116:Color; D008027:Light; D055096:Optical Devices; D013499:Surface Properties
ambient fabrication; complex surfaces; large-area light emission; light-emitting electrochemical cell; solution-based processing