Controlled p-Type Doping of MoS2 Monolayer by Copper Chlorideopen access
- Authors
- Pak, Sangyeon
- Issue Date
- 1-Sep-2022
- Publisher
- MDPI
- Keywords
- MoS2 monolayer; copper chloride; transition metal chloride; p-type doping; spin coating
- Citation
- Nanomaterials, v.12, no.17
- Journal Title
- Nanomaterials
- Volume
- 12
- Number
- 17
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/32957
- DOI
- 10.3390/nano12172893
- ISSN
- 2079-4991
2079-4991
- Abstract
- Electronic devices based on two-dimensional (2D) MoS2 show great promise as future building blocks in electronic circuits due to their outstanding electrical, optical, and mechanical properties. Despite the high importance of doping of these 2D materials for designing field-effect transistors (FETs) and logic circuits, a simple and controllable doping methodology still needs to be developed in order to tailor their device properties. Here, we found a simple and effective chemical doping strategy for MoS2 monolayers using CuCl2 solution. The CuCl2 solution was simply spin-coated on MoS2 with different concentrations under ambient conditions for effectively p-doping the MoS2 monolayers. This was systematically analyzed using various spectroscopic measurements using Raman, photoluminescence, and X-ray photoelectron and electrical measurements by observing the change in transfer and output characteristics of MoS2 FETs before and after CuCl2 doping, showing effective p-type doping behaviors as observed through the shift of threshold voltages (Vth) and reducing the ON and OFF current level. Our results open the possibility of providing effective and simple doping strategies for 2D materials and other nanomaterials without causing any detrimental damage.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/32957)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.