Experimentally Determining the Top and Edge Contact Resistivities of Two-Step Sulfurization Nb-Doped MoS2 Films Using the Transmission Line Measurement

Autor: Chao-Hsin Chien, Chao-Ting Lin, Yen Teng Ho, Chi-Feng Li, Yun-Yan Chung
Rok vydání: 2019
Předmět:
Zdroj: IEEE Electron Device Letters. 40:1662-1665
ISSN: 1558-0563
0741-3106
DOI: 10.1109/led.2019.2935538
Popis: This study determined the top (vertical) and edge (horizontal) resistivities of metal–MoS2 contact based on the experimental results obtained using the transmission line measurement structure. A novel two-step sulfurization scheme was conducted for forming Nb-doped MoS2 films on a sapphire substrate. The edge contact resistivity, $\rho _{C\_{}{\textit {edge}}}$ , was almost two orders of magnitude lower than the top contact resistivity, $\rho _{C\_{}{\textit {top}}}$ . Our findings highlight a simple and effective method to accurately determine the edge and top contact resistances of a metal–two-dimensional material contact.
Databáze: OpenAIRE