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A selective metal transfer (SMT) process is applied to organic light‐emitting diode (OLED) metal electrodes. Multicolored OLED device fabrication is demonstrated using a vacuum‐free, selective metal transfer process where an Al thin film (<100 nm) is transferred onto only the top of a light emitting layer containing polyvinyl carbazole. With this one‐step process, it is possible to make separate,...
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