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According to the full-potential linearized augmented plane wave method, we calculate the optical properties of In-doped superlattices ZnO. The results reveal that the Fermi energy level enters into the conduction band after doping In. Dielectric function, absorption, refractive index, reflectivity are found to each have a new transition peak near the Fermi energy level. With the increase of the concentration, this transition peak shifts toward the low energy and the spectrum of the peak is the biggest for the two-layer doping case. The optical absorption edge decreases with the increase of doping concentration. Compared with In-doped ZnO supercell, ZnO superlattice has a high transmissivity in the visible light range.
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Keywords:
- superlattice /
- band structure /
- density of state /
- optical property
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[1] Lee E C, Chang K J 2006 Physica B 376-377 707
[2] Xiong Z H, Jiang F Y 2007 J. Phys. Chem. Solids 68 1500
[3] Guo M T, Li L, Zhang X F 2007 Laser Journal 28 32 (in Chinese) [郭茂田, 李丽, 张晓芳 2007 激光杂志 28 32]
[4] Guan L, Li Q, Zhao Q X, Guo J X, Zhou Y, Jin L T, Geng B, LiuB T 2009 Acta Phys. Sin. 58 5624 (in Chinese) [关丽, 李强,赵庆勋, 郭建新, 周阳, 金利涛, 耿波, 刘保亭 2009 58 5624]
[5] Liu X C, Ji Y J, Zhao J Q, Liu L Q, Zhang Z P, Dong H L 2010Acta Phys. Sin. 59 4925 (in Chinese) [刘小村,季艳菊, 赵俊卿, 刘立强, 张兆鹏, 董和磊 2010 59 4925]
[6] Fujita S, Tanaka H, Fujita S 2005 J. Crystal Growth 278 264
[7] Ohtomo A, Kawasaki M, Ohkubo I, Koinuma H, Yasuda T, SegawaY 2009 Appl. Phys. Lett. 75 980
[8] Karzel H, Potzel W, Kofferlein M, Schiessl W, Steiner M, HillerU, Kalvius G M, Mitchell D W, Das T P, Blaha P, Schwarz K,Pasternak M P 1996 Phys. Rev. B 53 11425
[9] Duan M Y, Xu M , Zhou H P, Chen Q Y, Hu Z G, Dong C J 2008Acta Phys. Sin. 57 6520 (in Chinese) [段满益,徐明, 周海平, 陈青云, 胡志刚, 董成军 2008 57 6520]
[10] Schleife A, Rodl C, Fuchs F, Furthmuller J, Bechstedt F 2007Appl. Phys. Lett. 91 24195
[11] Ying X J, Zhang X D, Hao Z W 2007 J. Synthetic Crystals 36 784(in Chinese) [应杏娟, 张兴德, 郝志武 2007人工晶体学报 36 784]
[12] Wen X, Shu S L 2009 Physica E 41 506
[13] Liu X C, Shi E W, Song L X, Zhang W H, Chen Z Z 2006 ActaPhys. Sin. 55 2557 (in Chinese) [刘学超,施尔畏, 宋力昕, 张伟华, 陈之战 2006 55 2557]
[14] Shi L B, Yuan H K 2011 J. Magn. Magn. Mater. 323 857
[15] Tang X, Lü H F, Ma C Y, Zhao J J, Zhang Q Y 2008 Acta Phys.Sin. 57 1066 (in Chinese) [唐鑫,吕海峰, 马春雨, 赵纪军, 张庆瑜 2008 57 1066]
[16] Zhang X D, Guo M L, Li W X, Liu C L 2008 J. Appl. Phys. 103063721
[17] Feng X Y, Wang P J, Zhang C W, Lu Y, Jiang L, Zhang G L 2011 J. Synthetic Crystals 40 517 (in Chinese) [冯现徉,王培吉, 张昌文, 逯瑶, 蒋雷, 张国莲 2011 人工晶体学报 40 517]
[18] Wang Y B, Xu Y, Zhang Y, Yu X, Song G F, Chen L H 2011 Chin.Phys. B 20 067302
[19] Wang JW, Bian J M, Sun J C, Liang HW, Zhao J Z, Du G T 2008Acta Phys. Sin. 57 5212 (in Chinese) [王经纬,边继明, 孙景昌, 梁红伟, 赵涧泽, 杜国同 2008 57 5212]
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