A Novel Method to Produce Quantum Dots

A novel method to produce quantum dots on Si substrate using AAO template and UV pulsed laser deposition technique was proposed and tested.AAO template fabricated by two-step method was put in front of si single crystal substrate.The luminescence target material La_(0.95)Eu_(0.05)BaB_(9)O_(16)was ablated by pulsed UV laser(248nm),and passed through the holes in AAO template,and was deposited on the substrate.Both Raman and luminescence spectra were measured to find the difference between the bulk target and the dots materials.

一步和两步法制备阳极氧化铝模板(英文)

手二步阳极氧化法制备了大面积上有规则排列纳米洞的阳极氧化铝模板。与一步阳极氧化法的结果进行了比较,SEM测量表明,一步阳极氧化得到的AAO模板正面(对着负电极的一面)和反面,有很大不同,正面纳米洞的分布更不规则,而二步法得到的模板正反面都有排列规则的纳米洞。这一结果也表明阳极氧化过程是一种自组织有序的过程,氧化时间越长。

碳纳米管在银基底上的表面增强拉曼散射光谱研究(英文)

介绍了一种单壁碳纳米管表面增强拉曼散射的新方法。依据碳纳米管独特的力学性能,在银表面直接研磨单壁碳纳米管,在形成纳米级粗糙银表面的同时,单壁碳纳米管也吸附在银表面上。在银表面粗糙程度和单壁碳纳米管厚度适中的区域得到了高质量的单壁碳纳米管SERS谱。该方法消除了溶剂的干扰,保证了结果的准确性,理论分析和实验结果表明该方法是正确的。