Performance improvement of blue InGaN light-emitting diodes with a specially designed n-AlGaN hole blocking layer

doi:10.1088/1674-1056/22/8/088503

Abstract Blue InGaN light-emitting diodes (LEDs) with a conventional electron blocking layer (EBL), a common n-AlGaN hole blocking layer (HBL), and an n-AlGaN HBL with gradual Al composition are investigated numerically, which involves analyses of the carrier concentration in the active region, energy band diagram, electrostatic field, and internal quantum efficiency (IQE). The results indicate that LEDs with an n-AlGaN HBL with gradual Al composition exhibit better hole injection efficiency, lower electron leakage, and a smaller electrostatic field in the active region than LEDs with a conventional p-AlGaN EBL or a common n-AlGaN HBL. Meanwhile, the efficiency droop is alleviated when an n-AlGaN HBL with gradual Al composition is used.

Keywords: p-AlGaN electron blocking layer (EBL) n-AlGaN hole blocking layer (HBL) numerical simulation InGaN light-emitting diode (LED)

Received: 23 October 2012
Revised: 09 January 2013
Accepted manuscript online:

PACS:	85.60.Jb	(Light-emitting devices)
	85.30.-z	(Semiconductor devices)
	87.15.A-	(Theory, modeling, and computer simulation)
	78.60.Fi	(Electroluminescence)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61176043), the Special Funds for Provincial Strategic and Emerging Industries Projects of Guangdong Province, China (Grant Nos. 2010A081002005, 2011A081301003, and 2012A080304016), and the Youth Foundation of South China Normal University (Grant No. 2012KJ018).

Corresponding Authors: Fan Guang-Han
E-mail: gfan@scnu.edu.cn

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Ding Bin-Bin (丁彬彬), Zhao Fang (赵芳), Song Jing-Jing (宋晶晶), Xiong Jian-Yong (熊建勇), Zheng Shu-Wen (郑树文), Zhang Yun-Yan (张运炎), Xu Yi-Qin (许毅钦), Zhou De-Tao (周德涛), Yu Xiao-Peng (喻晓鹏), Zhang Han-Xiang (张瀚翔), Zhang Tao (张涛), Fan Guang-Han (范广涵) Performance improvement of blue InGaN light-emitting diodes with a specially designed n-AlGaN hole blocking layer 2013 Chin. Phys. B 22 088503

[1]	Muramoto Y, Kimura M, Dempo A, Nouda S, Fukawa Y and Sakai S 2011 J. Soc. Inf. Disp. 19 907
[2]	Pimputkar S, Speck J, DenBaars S P and Nakamura S 2009 Nat. Photon. 3 180
[3]	Horiuchi N 2010 Nat. Photon. 4 738
[4]	Chen Y X, Shen G D, Guo W L, Xu C and Li J J 2011 Chin. Phys. B 20 017204
[5]	Wang Z J, Li P L, Yang Z P, Guo Q L and Li X 2010 Chin. Phys. B 19 017801
[6]	Mukai T, Yamada M and Nakamura S 1999 Jpn. J. Appl. Phys. Part 38 3976
[7]	Sun W, Shatalov M, Deng J, Hu X, Yang J, Lunev A, Bilenko Y, Shur M and Gaska R 2010 Appl. Phys. Lett. 96 061102
[8]	Kim M H, Schubert M F, Dai Q, Kim J K, Schubert E F, Piprek J and Park Y 2007 Appl. Phys. Lett. 91 183507
[9]	Schubert M F, Chhajed S, Kim J K, Schubert E F, Koleske D D, Crawford M H, Lee S R, Fischer A J, Thaler G and Banas M A 2007 Appl. Phys. Lett. 91 231114
[10]	Rozhansky I V and Zakheim D A 2006 Phys. Status Solidi C 3 2160
[11]	Wang J X, Wang L, Zhao W, Hao Z B and Luo Y 2010 Appl. Phys. Lett. 97 201112
[12]	Wang J X, Wang L, Wang L, Hao Z B, Luo Y, Dempewolf A, Muller M, Bertram F and Christen J 2012 J. Appl. Phys. 112 023107
[13]	Delaney K T, Rinke P and Van de Walle C G 2009 Appl. Phys. Lett. 94 191109
[14]	Shen Y C, Mueller G O, Watanabe S, Gardner N F, Munkholm A and Krames M R 2007 Appl. Phys. Lett. 91 141101
[15]	Rozhansky I V and Zakheim D A 2006 Semiconductors 40 839
[16]	Ghazai A J, Thahab S M, Hassan H A and Hassan Z 2011 Opt. Express 19 9245
[17]	Kuo Y K, Chang J Y, Tsai M C and Yen S H 2009 Appl. Phys. Lett. 95 011116
[18]	Fu Y K, Jiang R H, Lu Y H, Chen B C, Xuan R, Fang Y H, Lin C F, Su Y K and Chen J F 2011 Appl. Phys. Lett. 98 121115
[19]	Zhao H, Liu G, Zhang J, Poplawsky J D, Dierolf V and Tansu N 2011 Opt. Express 19 A991
[20]	Liao C T, Tsai M C, Liou B T, Yen S H and Kuo Y K 2010 J. Appl. Phys. 108 063107
[21]	Zhao H and Tansu N 2010 J. Appl. Phys. 107 113110
[22]	Zhang Y Y and Yin Y A 2011 Appl. Phys. Lett. 99 221103
[23]	Chen J, Fan G H and Zhang Y Y 2013 Chin. Phys. B 22 018504
[24]	Kuo Y K, Chang J Y and Tsai M C 2010 Opt. Lett. 35 3285
[25]	Chichibu S F, Abare A C, Minsky M S, Keller S, Fleisher S B, Bowers J E, Hu E, Mishra U K, Coldren L A, Denbaurs S P and Sota T 1998 Appl. Phys. Lett. 73 2006
[26]	Kuokstis E, Yang J W, Simin G, Khan M A, Gaska R and Shur M S 2002 Appl. Phys. Lett. 80 977
[27]	Choi S, Kim H J, Kim S S, Liu J, Kim J, Ryou J H, Dupuis R D, Fischer A M and Ponce F A 2010 Appl. Phys. Lett. 96 221105
[28]	Kuo Y K, Tsai M C, Yen S H, Hsu T C and Shen Y J 2010 IEEE J. Quantum Electron. 46 1214
[29]	Yen S H, Tsai M C, Shen Y J, Hsu T C and Kuo Y K 2009 IEEE Photon. Technol. Lett. 21 975
[30]	Wang C H, Ke C C, Lee C Y, Chang S P, Chang W T, Li J C, Li Z Y, Yang H C, Kuo H C, Lu T C and Wang S C 2010 Appl. Phys. Lett. 97 261103

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Performance improvement of blue InGaN light-emitting diodes with a specially designed n-AlGaN hole blocking layer

Cite this article:

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