| 纳秒激光加工生成网孔硅的发光 |
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| 引用本文： | 黄伟其,蔡成兰,孟祥翔,刘家兴,秦朝建,王晓允,张荣涛,于示强.纳秒激光加工生成网孔硅的发光[J].贵州科学,2010,28(3):16-19,38. |
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| 作者姓名： | 黄伟其 蔡成兰 孟祥翔 刘家兴 秦朝建 王晓允 张荣涛 于示强 |
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| 作者单位： | 1. 贵州大学纳米光子物理研究所,贵阳,550025
2. 中国科学院地球化学研究所,贵阳,550003 |
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| 摘 要： | 我们分别在氧气、氮气或空气等不同氛围中用纳秒脉冲激光在硅基上加工生成网孔结构,发现这些样品有增强的PL发光,且各样品的PL峰很相似。通过第一性原理计算,发现各种网孔结构表面的成键类型与密度是形成PL发光增强的关键,并由此提出相应的物理模型。
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| 关 键 词： | 光致荧光 多孔硅 陷阱态 |
Properties of Emission on Si Hole-net Structure |
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| HUANG Wei-qi,CAI Cheng-lan,MENG Xiang-xiang,LIU Jia-xing,QIN Chao-jian,WANG Xiao-yun,ZHANG Rong-tao,YU Shi-qiang.Properties of Emission on Si Hole-net Structure[J].Guizhou Science,2010,28(3):16-19,38. |
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| Authors: | HUANG Wei-qi CAI Cheng-lan MENG Xiang-xiang LIU Jia-xing QIN Chao-jian WANG Xiao-yun ZHANG Rong-tao YU Shi-qiang |
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| Institution: | 1 Institute of Nano-Photon Physics, Guizhou University, Guiyang 550025, China ; 2Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550003, China) |
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| Abstract: | Meshes can be formed by nanosecond laser irradiation on silicon samples in the oxygen, nitrogen and air. The increasing PL emerged at 700nm wavelength, primary principle shows that bond- kinds and bonds＇ and every PL peak is similar to each other. Calculation of density of surface structure play an important role. We propose a physical model to explain above structures. |
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| Keywords: | photoluminescence porous silicon trap states |
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