TY - JOUR
T1 - Lateral dye distribution with ink-jet dye doping of polymer organic light emitting diodes
AU - Madigan, Conor F.
AU - Hebner, Thomas R.
AU - Sturm, J. C.
AU - Register, Richard A.
AU - Troian, Sandra
N1 - Funding Information:
This work was supported by DARPA/AFOSR, NSF, and NJCST. The authors would also like to thank Joe Goodhouse for his expert assistance in obtaining PL images.
PY - 2000
Y1 - 2000
N2 - In this work we investigate the lateral dye distribution resulting from the dye doping of a thin polymer film by ink-jet printing (IJP) for the integration of color organic light emitting diodes (OLED's). The dye is found to segregate into distinct outer rings following rapid droplet evaporation, while slower evaporation rates are found to significantly reduce (or eliminate) this effect. The dye segregation phenomena are found to depend critically on the mechanisms of droplet evaporation. Good dye uniformity was obtained using a low vapor pressure solvent, and integrated, 250 micron red, green, and blue polymer organic light emitting diodes (OLED's) were fabricated with this technique. These devices had good color uniformity over most of the device area and similar electrical properties to comparable spin-coated devices without IJP.
AB - In this work we investigate the lateral dye distribution resulting from the dye doping of a thin polymer film by ink-jet printing (IJP) for the integration of color organic light emitting diodes (OLED's). The dye is found to segregate into distinct outer rings following rapid droplet evaporation, while slower evaporation rates are found to significantly reduce (or eliminate) this effect. The dye segregation phenomena are found to depend critically on the mechanisms of droplet evaporation. Good dye uniformity was obtained using a low vapor pressure solvent, and integrated, 250 micron red, green, and blue polymer organic light emitting diodes (OLED's) were fabricated with this technique. These devices had good color uniformity over most of the device area and similar electrical properties to comparable spin-coated devices without IJP.
UR - http://www.scopus.com/inward/record.url?scp=0034445229&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034445229&partnerID=8YFLogxK
U2 - 10.1557/PROC-625-123
DO - 10.1557/PROC-625-123
M3 - Article
AN - SCOPUS:0034445229
SN - 0272-9172
VL - 625
SP - 123
EP - 128
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
ER -