Effects of matrix layer composition on the structural and optical properties of self-organized InGaN quantum dots
文献类型：期刊论文
| 作者 | Sun, Q(孙钱) ; Yang, H(杨辉); Liu, JP(刘建平); Zhang, SM(张书明); Li, DY(李德尧); Zhang, LQ(张立群); Wang, HB(王怀兵)
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| 刊名 | JOURNAL OF APPLIED PHYSICS
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| 出版日期 | 2013-09-07 |
| 卷号 | 114期号:9 |
| 通讯作者 | Liu, JP(刘建平) |
| 英文摘要 | Self-organized InGaN quantum dots (QDs) with emission wavelength from green to red range have been grown on GaN templated c-plane sapphire substrates by metal-organic chemical vapor deposition (MOCVD). The effects of matrix layer composition on the structural and optical properties of InGaN QDs have been investigated. A continued growth of QDs is observed during the growth of In0.1Ga0.9N matrix layer, which results in an increase of the QDs' size. By using In0.1Ga0.9N matrix layer instead of GaN one, the annealing induced blue-shift in emission energy of the InGaN QDs can be suppressed. After the growth of top GaN cap layer, a larger red-shift caused by the quantum confined Stark effect is observed in the sample with In0.1Ga0.9N matrix layer. Employing this method, InGaN QD sample emitting at 615 nm with an internal quantum efficiency of 24.3% has been grown. The significance of this method is that it allows a higher growth temperature of InGaN QDs with emission wavelength in the green range to improve the crystalline quality, which is beneficial to enhance the efficiency of green InGaN QD light-emitting-diodes and laser diodes. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000324386900005 |
| 公开日期 | 2014-01-13 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/1326]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米器件及相关材料研究部_刘建平团队 苏州纳米技术与纳米仿生研究所_纳米器件及相关材料研究部_孙钱团队 |
| 通讯作者 | Liu, JP(刘建平) |
| 推荐引用方式 GB/T 7714 | Sun, Q,Yang, H,Liu, JP,et al. Effects of matrix layer composition on the structural and optical properties of self-organized InGaN quantum dots[J]. JOURNAL OF APPLIED PHYSICS,2013,114(9). |
| APA | Sun, Q.,Yang, H.,Liu, JP.,Zhang, SM.,Li, DY.,...&Wang, HB.(2013).Effects of matrix layer composition on the structural and optical properties of self-organized InGaN quantum dots.JOURNAL OF APPLIED PHYSICS,114(9). |
| MLA | Sun, Q,et al."Effects of matrix layer composition on the structural and optical properties of self-organized InGaN quantum dots".JOURNAL OF APPLIED PHYSICS 114.9(2013). |
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