Manganese Doping of Monolayer MoS2: The Substrate Is Critical

Nano Letters
Kehao ZhangJoshua A Robinson

Abstract

Substitutional doping of transition metal dichalcogenides (TMDs) may provide routes to achieving tunable p-n junctions, bandgaps, chemical sensitivity, and magnetism in these materials. In this study, we demonstrate in situ doping of monolayer molybdenum disulfide (MoS2) with manganese (Mn) via vapor phase deposition techniques. Successful incorporation of Mn in MoS2 leads to modifications of the band structure as evidenced by photoluminescence and X-ray photoelectron spectroscopy, but this is heavily dependent on the choice of substrate. We show that inert substrates (i.e., graphene) permit the incorporation of several percent Mn in MoS2, while substrates with reactive surface terminations (i.e., SiO2 and sapphire) preclude Mn incorporation and merely lead to defective MoS2. The results presented here demonstrate that tailoring the substrate surface could be the most significant factor in substitutional doping of TMDs with non-TMD elements.

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Citations

Jan 15, 2016·ACS Nano·Joshua A Robinson
Nov 7, 2015·ACS Nano·Ganesh R BhimanapatiJoshua A Robinson
Jul 20, 2016·Chemical Reviews·Michel NasilowskiBenoit Dubertret
Aug 6, 2016·Nano Letters·Angelica AzcatlRobert M Wallace
Apr 26, 2017·ACS Applied Materials & Interfaces·Jing-Kai QinLiang Zhen
Jul 29, 2017·Advanced Materials·Chaoliang TanHua Zhang
Apr 20, 2018·Chemical Society Reviews·Xiao ZhangHua Zhang
Apr 12, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yaping MiaoPaul K Chu
Oct 7, 2016·Chemical Communications : Chem Comm·Kangzhe CaoLifang Jiao
Dec 16, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Oscar Rodrigo Avalos-OvandoSergio E Ulloa
Dec 7, 2017·Nature Communications·Bo LiZhongming Wei
Dec 9, 2017·Physical Chemistry Chemical Physics : PCCP·Qinglong FangFei Ma
Jun 7, 2018·Physical Chemistry Chemical Physics : PCCP·Shafiq Ur Rehman, Z J Ding
Jul 6, 2018·Chemical Society Reviews·Shanshan WangJamie H Warner
Jul 31, 2018·Chemical Society Reviews·Zhiwei WangWei Huang
Jan 18, 2018·Nature Communications·Joonki SuhJunqiao Wu
Jan 21, 2018·Scientific Reports·Manikandan KrishnanArumugam Sonachalam
Jan 17, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Moumita KarPranab Sarkar
Feb 7, 2020·Advanced Materials·Jiadong ZhouWu Zhou
Apr 8, 2020·Nanoscale·Xudong Wen, Jingqi Guan
Aug 4, 2020·Physical Review Letters·Pierre MalletJean-Yves Veuillen

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