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A laser ablation method has been applied to the patterning of the cathode of organic light emitting diodes (OLEDs). Second harmonic (532nm) from the diode pumped by solid state Nd:YAG and Nd:YVO 4 lasers were used. The devices fabricated show the similar characteristics those made by using cathode separators. By using the ''laser patterning method'', one step of photolithography process that...
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