A new white organic light emitting diode(WOLED) was constructed by sandwiching an exciton blocking layer(EBL) between the emitting layer(EML) and the electron-injection layer.

通过在发光层（EBL）与电子注入层之间增加激子阻挡层（EBL）制备了新型白色有机发光器件（WOLED）。

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Researchers have demonstrated white, organic light-emitting diode (OLED) sources with the same efficiency as fluorescent light bulbs.

研究人员展示了白色有机发光二极管跟荧光灯泡有一样的效率。

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