TY - JOUR
T1 - Ambient laser direct-write printing of a patterned organo-metallic electroluminescent device
AU - Kattamis, Nicholas T.
AU - McDaniel, Neil D.
AU - Bernhard, Stefan
AU - Arnold, Craig B.
N1 - Funding Information:
This work was supported by the National Science Foundation (MRSEC Program) through the Princeton Center for Complex Materials (DMR 0819860) and the Air Force Office of Scientific Research. The authors would like to thank Jim Sturm and Sigurd Wagner for time on their equipment.
PY - 2011/7
Y1 - 2011/7
N2 - In this work we use laser direct-write (LDW) to fabricate patterned [Ru(dtb-bpy)3]2+(PF6-)2 electroluminescent devices under ambient processing conditions. Device fabrication is accomplished via laser micromachining of a transparent conducting oxide top electrode, LDW printing the active organo-metallic material, and vapor depositing the bottom electrode. Nuclear magnetic resonance spectroscopy is used to ensure the transfer of damage-free luminophore material. Devices tested in air are shown to exhibit emission spectra, luminous efficiencies, and lifetimes similar to literature values for devices fabricated in nitrogen environments. The versatility of laser direct-write printing is then demonstrated by printing multi-color luminophore patterns with diameters down to 10 μm for future use in high-resolution device fabrication. This approach is compatible with large-area organic electronics that require the fabrication of high-resolution architectures.
AB - In this work we use laser direct-write (LDW) to fabricate patterned [Ru(dtb-bpy)3]2+(PF6-)2 electroluminescent devices under ambient processing conditions. Device fabrication is accomplished via laser micromachining of a transparent conducting oxide top electrode, LDW printing the active organo-metallic material, and vapor depositing the bottom electrode. Nuclear magnetic resonance spectroscopy is used to ensure the transfer of damage-free luminophore material. Devices tested in air are shown to exhibit emission spectra, luminous efficiencies, and lifetimes similar to literature values for devices fabricated in nitrogen environments. The versatility of laser direct-write printing is then demonstrated by printing multi-color luminophore patterns with diameters down to 10 μm for future use in high-resolution device fabrication. This approach is compatible with large-area organic electronics that require the fabrication of high-resolution architectures.
KW - Ionic transition metal complexes
KW - Laser direct-write
KW - Laser-induced forward transfer
KW - Organic electronics
KW - Organic light-emitting diode
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U2 - 10.1016/j.orgel.2011.03.032
DO - 10.1016/j.orgel.2011.03.032
M3 - Article
AN - SCOPUS:79955504409
SN - 1566-1199
VL - 12
SP - 1152
EP - 1158
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
IS - 7
ER -