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城戸・笹部研究室

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2014年09月26日
D3相澤君の論文が Advanced Materials にオンライン掲載されました!

相澤君、おめでとう!

 

Instant Low-Temperature Cross-Linking of Poly(N-vinylcarbazole) for Solution-Processed Multilayer Blue Phosphorescent Organic Light-Emitting Devices

Naoya Aizawa, Yong-Jin Pu*, Takayuki Chiba, So Kawata, Hisahiro Sasabe and Junji Kido*, Advanced Materials, in press.

 

Poly(N-vinylcarbazole) undergoes cross-linking to highly solvent-resistant films through an oxidative coupling reaction, for which an annealing process takes only 3 minutes at 110 °C. This reaction allows for constructing a solution-processed multilayer OLED without a time-consuming annealing process. The maximum external quantum efficiency reaches 18%, which remains 17%, even at a high brightness of 10 000 cd m−2 for all-solution-processed blue OLEDs.

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