PMID- 32614014
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200716
IS  - 2040-3372 (Electronic)
IS  - 2040-3364 (Linking)
VI  - 12
IP  - 27
DP  - 2020 Jul 21
TI  - Intrinsic limit of contact resistance in the lateral heterostructure of metallic 
      and semiconducting PtSe(2).
PG  - 14636-14641
LID - 10.1039/d0nr03001e [doi]
AB  - High contact resistance (R(c)) limits the ultimate potential of two-dimensional 
      (2-D) materials for future devices. To resolve the R(c) problem, forming metallic 
      1T phase MoS(2) locally in the semiconducting 2H phase MoS(2) has been 
      successfully demonstrated to use the 1T phase as source/drain electrodes in field 
      effect transistors (FETs). However, the long-term stability of the 1T phase 
      MoS(2) still remains as an issue. Recently, an unusual thickness-modulated phase 
      transition from semiconducting to metallic has been experimentally observed in 
      2-D material PtSe(2). Metallic multilayer PtSe(2) and semiconducting monolayer 
      PtSe(2) can be used as source/drain electrodes and channel, respectively, in 
      FETs. Here, we present a theoretical study on the intrinsic lower limit of R(c) 
      in the metallic-semiconducting PtSe(2) heterostructure through density functional 
      theory (DFT) combined with non-equilibrium Green's function (NEGF). Compared with 
      R(c) in the 1T-2H MoS(2) heterostructure, the multilayer-monolayer PtSe(2) 
      heterostructure can offer much lower R(c) due to the better capability of 
      providing more transmission modes.
FAU - Yang, Eunyeong
AU  - Yang E
AD  - Department of Electrical and Computer Engineering, Ulsan National Institute of 
      Science and Technology (UNIST), Ulsan 44919, South Korea. 
      jiwon.chang@unist.ac.kr.
FAU - Seo, Jae Eun
AU  - Seo JE
FAU - Seo, Dongwook
AU  - Seo D
FAU - Chang, Jiwon
AU  - Chang J
LA  - eng
PT  - Journal Article
DEP - 20200702
PL  - England
TA  - Nanoscale
JT  - Nanoscale
JID - 101525249
SB  - IM
EDAT- 2020/07/03 06:00
MHDA- 2020/07/03 06:01
CRDT- 2020/07/03 06:00
PHST- 2020/07/03 06:00 [pubmed]
PHST- 2020/07/03 06:01 [medline]
PHST- 2020/07/03 06:00 [entrez]
AID - 10.1039/d0nr03001e [doi]
PST - ppublish
SO  - Nanoscale. 2020 Jul 21;12(27):14636-14641. doi: 10.1039/d0nr03001e. Epub 2020 Jul 
      2.