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。