研究了自组织生长模式(S-K modes)下量子点尺寸的不均匀分布对量子点发光性质的影响,对其光致发光峰进行了拟合计算.研究发现,量子点尺寸的不均匀分布导致了量子点发光峰的展宽以及发光峰位的红移.另一方面,后处理工艺中的退火及质子注入引起的界面混合导致了量子点PL谱发光峰的蓝移及半高宽的减小.
参考文献
| [1] | Petroff P M;Schmidt K H;Ribeiw G M.[J].Japanese Journal of Applied Physics,1997(36):4086. |
| [2] | I. Mukhametzhanov;Z. Wei;R. Heitz .Punctuated island growth: An approach to examination and control of quantum dot density, size, and shape evolution[J].Applied physics letters,1999(1):85-87. |
| [3] | Vasilev D G;Evtikhiev V P;Tokranov V E.Effect of substrate misorientation on quantum dot size distribution in the InAs/GaAs system[J].Physics of the Solid State,1998(40):787-790. |
| [4] | Ebiko Y.;Suzuki D.;Itoh S.;Shiramine K.;Haga T.;Nakata Y. Yokoyama N.;Muto S. .Island size scaling in InAs/GaAs self-assembled quantum dots[J].Physical review letters,1998(12):2650-2653. |
| [5] | Schuler H.;Phillipp F.;Eberl K.;Jin-Phillipp NY. .Size modification of self-assembled InAs quantum dots by in situ etching[J].Semiconductor Science and Technology,1998(11):1341-1345. |
| [6] | Patane A.;Intonti F.;Polimeni A.;Capizzi M.;Martelli F. Nasi L.;Lazzarini L.;Salviati G.;Bosacchi A.;Franchi S.;Alessi MG. .Self-aggregated InAs quantum dots in GaAs[J].Journal of Applied Physics,1998(10):5529-5535. |
| [7] | I. Mukhametzhanov;Z. Wei;R. Heitz .Punctuated island growth: An approach to examination and control of quantum dot density, size, and shape evolution[J].Applied physics letters,1999(1):85-87. |
| [8] | Furakawa Y;Nods S;Ishii M.Stacking Number Dependence of Size Distribution of Vertically Stacked lnAs/ GaAs Quantum Dots[J].Journal of Electronic Materials,1999(28):452-456. |
| [9] | Schmidt KH.;Kunze U.;Abstreiter G.;Hagn M. Petroff PM.;Medeiros-Ribeiro G. .Size distribution of coherently strained InAs quantum dots[J].Journal of Applied Physics,1998(8):4268-4272. |
| [10] | Akira Endoh;Yoshiaki Nakata;Yoshihiro Sugiyama;Motomu Takatsu;Naoki Yokoyama .Effect of Size Fluctuations on the Photoluminescence Spectral Linewidth of Closely Stacked InAs Self-Assembled Quantum Dot Structures[J].Japanese journal of applied physics,1999(2B Pt.1):1085-1089. |
| [11] | Yalin Ji;Wei Lu;Guibin Chen;Xiaoshuang Chen;Qing Wang .InAs/GaAs quantum dot intermixing induced by proton implantation[J].Journal of Applied Physics,2003(2):1208-1211. |
| [12] | Yalin Ji;Guibin Chen;NaiYun Tang.Proton implantation induced photo]uminescence enhancement in self -assembled InAs/GaAs quantum dots[J].Applied Physics Letters,2003(82):2802-2804. |
| [13] | Lifshitz I M.The energy spectrum of disordered aystems[J].Advances in Physics,1964(42):483-536. |
| [14] | Wojs A.;Fafard S.;Jacak L.;Hawrylak P. .ELECTRONIC STRUCTURE AND MAGNETO-OPTICS OF SELF-ASSEMBLED QUANTUM DOTS[J].Physical Review.B.Condensed Matter,1996(8):5604-5608. |
| [15] | J. J. Dubowski;C. Ni. Allen;S. Fafard .Laser-induced InAs/GaAs quantum dot intermixing[J].Applied physics letters,2000(22):3583-3585. |
| [16] | Nathalie P;Denis M;Franchomme-Fosse L.Origin of the inhomogenous broadening and alloy intermixing in InAs/GaAs self-assemblod quantum dots[J].Physical Review B,2000(62):5092-5099. |
| [17] | Kothiyal G P;Bhattacharya P.Optical properties and Stokes shifts in lamp-annealed InGaAs/GaAs strained layer soperlattice[J].Journal of Applied Physics,1988(63):2760-2764. |
| [18] | Trwoga PF.;Pitt CW.;Kenyon AJ. .Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters[J].Journal of Applied Physics,1998(7):3789-3794. |
| [19] | Chen X;Zhao J;Wang G.The effect of size distri bution of Si nanooclusters on photoluminescence from ensembles of Si nanoclusten[J].Physics Letters A,1996(212):285-287. |
| [20] | Wen-qin Cheng;Xiao-gang Xie;Zhen Yang Zhong;Li-hong Cai;Qi Huang;Jun-ming Zhou .Photoluminescence from InAs quantum dots on GaAs(100)[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1998(1/2):287-290. |
| [21] | C. Lobo;R. Leon;S. Fafard .Intermixing induced changes in the radiative emission from Ⅲ-Ⅴ quantum dots[J].Applied physics letters,1998(19/23):2850-2852. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%