| Title | Semiconductivity Transition in Silicon Nanowires by Hole Transport Layer |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2020 |
| Authors | Shalabny, A., Buonocore F., Celino M., Shalev G., Zhang L., Wu W., Li P., Arbiol J., and Bashouti M.Y. |
| Journal | Nano Letters |
| ISSN | 15306984 |
| Keywords | Charge transfer, Electrochemical reactions, Hole transport layers, Hydrogen bonds, Kelvin Probe measurements, Low temperatures, Nanowires, Non equilibrium, Semiconducting silicon, Semiconductivity, Silicon nanowires, Surface chemicals, Temperature |
| Abstract | The surface of nanowires is a source of interest mainly for electrical prospects. Thus, different surface chemical treatments were carried out to develop recipes to control the surface effect. In this work, we succeed in shifting and tuning the semiconductivity of a Si nanowire-based device from n- to p-type. This was accomplished by generating a hole transport layer at the surface by using an electrochemical reaction-based nonequilibrium position to enhance the impact of the surface charge transfer. This was completed by applying different annealing pulses at low temperature (below 400 °C) to reserve the hydrogen bonds at the surface. After each annealing pulse, the surface was characterized by XPS, Kelvin probe measurements, and conductivity measured by FET based on a single Si NW. The mechanism and conclusion were supported experimentally and theoretically. To this end, this strategy has been demonstrated as an essential tool which could pave a new road for regulating semiconductivity and for other low-dimensional nanomaterials. © |
| Notes | cited By 0 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095836353&doi=10.1021%2facs.nanolett.0c03543&partnerID=40&md5=19f097adb87a08b045355a90f97832b5 |
| DOI | 10.1021/acs.nanolett.0c03543 |
| Citation Key | Shalabny2020 |
