References
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70. L. Zhou, J.E. Epler, M.R. Krames et al., Vertical injection thin-film AlGaN/AlGaN multiplequantum-well deep ultraviolet light-emitting diodes. Appl. Phys. Lett. 89(24), 241113 (2006)
71. V. Adivarahan, A. Heidari, B. Zhang et al., Vertical injection thin film deep ultraviolet light
emitting diodes with AlGaN multiple-quantum wells active region. Appl. Phys. Express 2(9),
092102 (2009)
72. H.Y. Ryu, I.G. Choi, H.S. Choi et al., Investigation of light extraction efficiency in AlGaN
deep-ultraviolet light-emitting diodes. Appl. Phys. Express 6(6), 062101 (2013)
73. P. Dong, Study on Efficiency Improvement of AlGaN-based UV LED, University of Chinese
Academy of Sciences, Ph.D. thesis (in Chinese) (2014)
111
70. L. Zhou, J.E. Epler, M.R. Krames et al., Vertical injection thin-film AlGaN/AlGaN multiplequantum-well deep ultraviolet light-emitting diodes. Appl. Phys. Lett. 89(24), 241113 (2006)
71. V. Adivarahan, A. Heidari, B. Zhang et al., Vertical injection thin film deep ultraviolet light
emitting diodes with AlGaN multiple-quantum wells active region. Appl. Phys. Express 2(9),
092102 (2009)
72. H.Y. Ryu, I.G. Choi, H.S. Choi et al., Investigation of light extraction efficiency in AlGaN
deep-ultraviolet light-emitting diodes. Appl. Phys. Express 6(6), 062101 (2013)
73. P. Dong, Study on Efficiency Improvement of AlGaN-based UV LED, University of Chinese
Academy of Sciences, Ph.D. thesis (in Chinese) (2014)