Maksimova Ksenia Yu, Kozlov Anatoly A, Shvets Petr V, Koneva Ulyana Yu, Yurkevich Oksana V, Lebedev Oleg I, Vyvenko Oleg F, Mikhailovskii Vladimir Yu, Goikhman Aleksandr Yu
REC "Functional Nanomaterials", Immanuel Kant Baltic Federal University, Gaidara Street 6, Kaliningrad 236001, Russian Federation.
Laboratoire CRISMAT, UMR 6508 CNRS/ENSICAEN/UCBN, 6 bd. du Maréchal Juin, F-14050 Caen Cedex 4, France.
ACS Omega. 2018 Feb 9;3(2):1684-1688. doi: 10.1021/acsomega.7b01640. eCollection 2018 Feb 28.
We report here the growth and functional properties of silicon-based nanowhisker (NW) diodes produced by the vapor-liquid-solid process using a pulsed laser deposition technique. For the first time, we demonstrate that this method could be employed to control the size and shape of silicon NWs by using a two-component catalyst material (Au/Cu ≈ 60:1). During the NW growth, copper is distributed on the outer surface of the NW, whereas gold sticks as a droplet to its top. The length of NWs is defined by the total amount of copper in the catalyst alloy droplet. The measurements of the electrical transport properties revealed that in contact with the substrate, individual NWs demonstrate typical - diode characteristics. Our approach can become an important new tool in the design of novel electronic components.
我们在此报告采用脉冲激光沉积技术通过气-液-固过程制备的硅基纳米晶须（NW）二极管的生长和功能特性。首次证明，通过使用二元催化剂材料（Au/Cu≈60:1），该方法可用于控制硅纳米线的尺寸和形状。在纳米线生长过程中，铜分布在纳米线的外表面，而金则以液滴形式附着在其顶部。纳米线的长度由催化剂合金液滴中铜的总量决定。电输运特性的测量表明，与衬底接触时，单个纳米线表现出典型的二极管特性。我们的方法可能成为新型电子元件设计中的一种重要新工具。
