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According to the photon grating diffraction principle, the extraction efficiency of LED with photonic crystal can be improved. In this paper, the dielectric photonic crystal is introduced into the SiO2 layer of the red LED to improve the extraction efficiency. The theoretical analyses and experimental results show that the LED with dielectric photonic crystal can well achieve the extraction efficiency. The luminous flux of new type LED is improved by 26% compared with the normal red LED.
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Keywords:
- LED /
- dielectric photonic crystal /
- luminous flux
[1] Aurelien David, Henri Benisty, Claude Weisbuch 2007 Journal of Display Technology 3 133
[2] Zhang J M, Zou D S, Xu C, Zhu Y X, Liang T, Da X L, Shen G D 2007 Chin. Phys. 16 1135
[3] Lu H M, Chen G X 2011 Chin. Phys. B 20 037807
[4] Szymanska N H, Hughesa F, Pike E R 1999 Phys. Rev. Lett. 83 69
[5] Matterson B J, Lupton J M, Safonov A F 2001 Adv Mater 13 123
[6] Zhang J M, Zou D S, Xu C, Guo W L, Zhu Y X, Liang T, Da X L, Li J J, Shen G D 2007 Chin. Phys. 16 3498
[7] Zhang Y Y, Fan G H 2011 Chin. Phys. B 20 078504
[8] Fan S H, Joannopoulos P R V J D , Schubert E F 2001 Proceedings of SPIE 3002 67
[9] Luo S J 2009 Science Union Forum 7 84 (in Chinese) [罗世俊 2009 科协论坛 7 84]
[10] Chen Jian, Li Xiaoli, Li Haihua, Wang Qingkang 2009 Chin. Phys. B 18 6216
[11] Fan S, Villeneuve P R, Joannopoulos J D 2000 IEEE J. Quantum Electron 36 1123
[12] Zhang X S, Liu S, Ren X C, Liu Y, Chen X Y 2008 Proceedings of SPIE 6353 30
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[1] Aurelien David, Henri Benisty, Claude Weisbuch 2007 Journal of Display Technology 3 133
[2] Zhang J M, Zou D S, Xu C, Zhu Y X, Liang T, Da X L, Shen G D 2007 Chin. Phys. 16 1135
[3] Lu H M, Chen G X 2011 Chin. Phys. B 20 037807
[4] Szymanska N H, Hughesa F, Pike E R 1999 Phys. Rev. Lett. 83 69
[5] Matterson B J, Lupton J M, Safonov A F 2001 Adv Mater 13 123
[6] Zhang J M, Zou D S, Xu C, Guo W L, Zhu Y X, Liang T, Da X L, Li J J, Shen G D 2007 Chin. Phys. 16 3498
[7] Zhang Y Y, Fan G H 2011 Chin. Phys. B 20 078504
[8] Fan S H, Joannopoulos P R V J D , Schubert E F 2001 Proceedings of SPIE 3002 67
[9] Luo S J 2009 Science Union Forum 7 84 (in Chinese) [罗世俊 2009 科协论坛 7 84]
[10] Chen Jian, Li Xiaoli, Li Haihua, Wang Qingkang 2009 Chin. Phys. B 18 6216
[11] Fan S, Villeneuve P R, Joannopoulos J D 2000 IEEE J. Quantum Electron 36 1123
[12] Zhang X S, Liu S, Ren X C, Liu Y, Chen X Y 2008 Proceedings of SPIE 6353 30
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