欢迎登录材料期刊网

材料期刊网

高级检索

在60Pa的高氧压气氛中,用脉冲激光沉积法以Si(111)为衬底在不同温度下制备了ZnO薄膜.RHEED和XRD结果表明,所有样品都是c轴高度择优取向的多晶ZnO薄膜.随衬底温度的升高,ZnO薄膜(002)衍射峰的半高宽不断减小,从0.227~0.185°.对(002)衍射峰的2θ值分析表明,650℃下生长的ZnO薄膜几乎处于无应力的状态,而在较低或较高温度下生长的薄膜中都存在着一定程度的c轴压应力.室温PL谱测试说明在650℃生长的ZnO薄膜具有最强的紫外发射峰和最窄的UV峰半高宽(83meV).在700℃得到的样品PL谱中,检测到一个位于3.25eV处的低能发射峰.经分析,该峰可能是来自于施主-受主对(DAP)的跃迁.

参考文献

[1] Look DC. .Recent advances in ZnO materials and devices[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2001(1/3):383-387.
[2] Bagnall DM.;Zhu Z.;Yao T.;Shen MY.;Goto T.;Chen YF. .High temperature excitonic stimulated emission from ZnO epitaxial layers[J].Applied physics letters,1998(8):1038-1040.
[3] 温晓莉,陈长乐,陈钊,张利学,牛利伟,高国棉.Mn、Co掺杂ZnO薄膜结构及发光特性研究[J].功能材料,2007(04):559-561.
[4] Henseler MJH;Lee WCT;Miller P;Durbin SM;Reeves RJ .Optical and photoelectrical properties of ZnO thin films and the effects of annealing[J].Journal of Crystal Growth,2006(1):48-53.
[5] Vanheusden K;Seager C H;Warren W L et al.[J].Applied Physics Letters,1996,68(03):403-405.
[6] Kang JS.;Kang HS.;Pang SS.;Shim ES.;Lee SY. .Investigation on the origin of green luminescence from laser-ablated ZnO thin film[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2003(1/2):5-8.
[7] Look DC.;Claftin B. .P-type doping and devices based on ZnO[J].Physica status solidi, B. Basic research,2004(3):624-630.
[8] Nahhas A;Kim H K;Blachere J et al.[J].Applied Physics Letters,2001,78(11):1511-1513.
[9] Fujimura N;Nishihara T;Goto S et al.[J].Journal of Crystal Growth,1993,130:269-279.
[10] Xiu F;Yang Z;Zhao D et al.[J].Journal of Crystal Growth,2006,286:61-65.
[11] Ma Y;Du G T;Yang T P et al.[J].Journal of Crystal Growth,2003,255:303-307.
[12] Matsumoto T;Kato H;Miyamoto K et al.[J].Applied Physics Letters,2002,81:1231-1233.
[13] Kohan A F;Ceder G;Morgan D et al.[J].Physical Review B,2000,61(22):15019-15027.
[14] Koida T;Shichibu S F;Uedono A et al.[J].Applied Physics Letters,2003,82:532-534.
[15] Kashiwaba Y;Haga K;Watanabe H et al.[J].Physical Status Solidi C,2004,1(04):912-915.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%