ZnO light-emitting devices with a lifetime of 6.8 hours
ZnO light-emitting devices with a lifetime of 6.8 hours
复制标题
ZnO发光器件，寿命6.8小时
DOI：
10.1063/1.4733298
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发表时间：
2012-07-02
影响因子：
4
通讯作者：
Shen, D. Z.
中科院分区：
文献类型：
--
作者：
Liu, J. S.;Shan, C. X.;Shen, D. Z.
实现了锂氮掺杂p型Mg 0. 25 Zn 0. 75 O薄膜的制备，并制备了p-Mg 0. 25 Zn 0. 75 O/n-ZnO单异质结发光器件。在连续电流注入下，从LED中观察到在392 nm附近的明显发射，这可以归因于ZnO的近带边发射。LED在20 mA的连续电流下可连续工作6.8 h，显示出良好的可靠性。本文的研究结果表明，可以实现可靠的ZnO基发光二极管，因此，高性能的ZnO基发光二极管可能是未来的承诺。
Lithium-nitrogen doped p-type Mg0.25Zn0.75O films have been realized, and p-Mg0.25Zn0.75O/n-ZnO single-heterostructured light-emitting devices (LEDs) have been constructed. Obvious emission at around 392 nm has been observed from the LEDs under the injection of continuous current, which can be attributed to the near-band-edge emission of ZnO. The LED can work continuously for 6.8 h under a continuous current of 20 mA, revealing the good reliability of the LED. The results reported in this letter reveal that reliable ZnO-based LEDs can be realized, thus high-performance ZnO-based LEDs may be promised in the future.