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Conclusion

Conclusion. By combining EL, PL, and C-V measurements, we explained the low-temperature behavior and electroluminescence collapse to be a result of reduced hole injection as the thermal activation of Mg in AlGaN layers of various compositions is affected.

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Conclusion

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  1. Conclusion • By combining EL, PL, and C-V measurements, weexplained the low-temperature behavior and electroluminescence collapse to be a result of reduced hole injection as the thermal activation of Mg in AlGaN layers of various compositions is affected. • With careful design of the p-type layers, the hole injection efficiency in the LEDs can be improved across all testing conditions.

  2. References • A. Hori, D. Yasunaga, A. Satake, and K. Fujiwara, J. Appl. Phys 93, 3152 (2003). • C.-M. Lee, C.-C. Chuo, J.-F. Dai, X.-F. Zheng, and J.-I. Chyi, J. Appl. Phys 89, 6554 (2001). • S. Grzanka, G. Franssen, G. Targowski, K. Krowicki, T. Suski, R. Czernecki, P. Perlin, and M. Leszczynski, Appl. Phys. Lett. 90, 103507 (2007). • 新電子 • http://www.mem.com.tw/article_content.asp?sn=0701020339

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