TY - JOUR
T1 - Macro- and atomic-scale observations of a one-dimensional heterojunction in a nickel and palladium nanowire complex
AU - Wakizaka, Masanori
AU - Kumagai, Shohei
AU - Wu, Hashen
AU - Sonobe, Takuya
AU - Iguchi, Hiroaki
AU - Yoshida, Takefumi
AU - Yamashita, Masahiro
AU - Takaishi, Shinya
N1 - Funding Information:
This work was supported by a JSPS KAKENHI Grant Nos. JP26248015 (M.Y.), JP25810032 (S.T.), JP19H05631 (M.Y.), and JP21H01756 (M.W.) as well as the Murata Science Foundation (M21-126, M.W.). M.Y. thanks the 111 project (B18030) from China.
Funding Information:
This work was supported by a JSPS KAKENHI Grant Nos. JP26248015 (M.Y.), JP25810032 (S.T.), JP19H05631 (M.Y.), and JP21H01756 (M.W.) as well as the Murata Science Foundation (M21-126, M.W.). M.Y. thanks the 111 project (B18030) from China.
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - The creation of low-dimensional heterostructures for intelligent devices is a challenging research topic; however, macro- and atomic-scale connections in one-dimensional (1D) electronic systems have not been achieved yet. Herein, we synthesize a heterostructure comprising a 1D Mott insulator [Ni(chxn)2Br]Br2 (1; chxn = 1R-2R-diaminocyclohexane) and a 1D Peierls or charge-density-wave insulator [Pd(chxn)2Br]Br2 (2) using stepwise electrochemical growth. It can be considered as the first example of electrochemical liquid-phase epitaxy applied to molecular-based heterostructures with a macroscopic scale. Moreover, atomic-resolution scanning tunneling microscopy images reveal a modulation of the electronic state in the heterojunction region with a length of five metal atoms (~ 2.5 nm), that is a direct evidence for the atomic-scale connection of 1 and 2. This is the first time that the heterojunction in the 1D chains has been shown and examined experimentally at macro- and atomic-scale. This study thus serves as proof of concept for heterojunctions in 1D electronic systems.
AB - The creation of low-dimensional heterostructures for intelligent devices is a challenging research topic; however, macro- and atomic-scale connections in one-dimensional (1D) electronic systems have not been achieved yet. Herein, we synthesize a heterostructure comprising a 1D Mott insulator [Ni(chxn)2Br]Br2 (1; chxn = 1R-2R-diaminocyclohexane) and a 1D Peierls or charge-density-wave insulator [Pd(chxn)2Br]Br2 (2) using stepwise electrochemical growth. It can be considered as the first example of electrochemical liquid-phase epitaxy applied to molecular-based heterostructures with a macroscopic scale. Moreover, atomic-resolution scanning tunneling microscopy images reveal a modulation of the electronic state in the heterojunction region with a length of five metal atoms (~ 2.5 nm), that is a direct evidence for the atomic-scale connection of 1 and 2. This is the first time that the heterojunction in the 1D chains has been shown and examined experimentally at macro- and atomic-scale. This study thus serves as proof of concept for heterojunctions in 1D electronic systems.
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U2 - 10.1038/s41467-022-28875-8
DO - 10.1038/s41467-022-28875-8
M3 - Article
C2 - 35246546
AN - SCOPUS:85125766013
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 1188
ER -