On-device phase engineering

Liu, Xiaowei1; Shan, Junjie1; Cao, Tianjun1; Zhu, Liang2; Ma, Jiayu3; Wang, Gang2; Shi, Zude4; Yang, Qishuo2; Ma, Mingyu4; Liu, Zenglin1; Yan, Shengnan1; Wang, Lizheng1; Dai, Yudi1; Xiong, Junlin1; Chen, Fanqiang1; Wang, Buwei1; Pan, Chen5; Wang, Zhenlin1; Cheng, Bin5; He, Yongmin4; Luo, Xin3; Lin, Junhao2,6; Liang, Shi-Jun1; Miao, Feng1

2024-04-01

10.1038/s41563-024-01888-y

NATURE MATERIALS   影响因子和分区

1476-1122

1476-4660

["In situ tailoring of two-dimensional materials' phases under external stimulus facilitates the manipulation of their properties for electronic, quantum and energy applications. However, current methods are mainly limited to the transitions among phases with unchanged chemical stoichiometry. Here we propose on-device phase engineering that allows us to realize various lattice phases with distinct chemical stoichiometries. Using palladium and selenide as a model system, we show that a PdSe2 channel with prepatterned Pd electrodes can be transformed into Pd17Se15 and Pd4Se by thermally tailoring the chemical composition ratio of the channel. Different phase configurations can be obtained by precisely controlling the thickness and spacing of the electrodes. The device can be thus engineered to implement versatile functions in situ, such as exhibiting superconducting behaviour and achieving ultralow-contact resistance, as well as customizing the synthesis of electrocatalysts. The proposed on-device phase engineering approach exhibits a universal mechanism and can be expanded to 29 element combinations between a metal and chalcogen. Our work highlights on-device phase engineering as a promising research approach through which to exploit fundamental properties as well as their applications.","A strategy of on-device phase engineering of two-dimensional materials is proposed, allowing the in situ realization of various lattice phases with distinct stoichiometries and versatile functions."]

SCI ; EI

英语

通讯

National Key R&D Program of China["2023YFF1203600","2022YFA1402500"] ; National Natural Science Foundation of China["62122036","62034004","61921005","62204112","12074176","12104206","11974156"] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB44000000] ; Leading-edge Technology Program of Jiangsu Natural Science Foundation[BK20232004] ; Natural Science Foundation of Jiangsu Province[BK20220774] ; Guangdong Innovative and Entrepreneurial Research Team Program[2019ZT08C044] ; Shenzhen Science and Technology Program["20200925161102001","20210609103649046"] ; Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS20190902092905285] ; Quantum Science Strategic Special Project from the Quantum Science Center of the Guangdong-Hong Kong-Macao Greater Bay Area[GDZX2301006]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001208183300001

NATURE PORTFOLIO

MATERIALS SCIENCE

Web of Science

1.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Sch Phys, Natl Lab Solid State Microstruct, Nanjing, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen Key Lab Adv Quantum Funct Mat & Devices, Shenzhen, Peoples R China
3.Sun Yat Sen Univ, Sch Phys, Ctr Phys Mech & Biophys, Guangdong Prov Key Lab Magnetoelect Phys & Devices, Guangzhou, Peoples R China
4.Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha, Peoples R China
5.Nanjing Univ Sci & Technol, Inst Interdisciplinary Phys Sci, Sch Phys, Nanjing, Peoples R China
6.Guangdong Hong Kong Macao Greater Bay Area Guangdo, Quantum Sci Ctr, Hong Kong, Peoples R China

Liu, Xiaowei,Shan, Junjie,Cao, Tianjun,et al. On-device phase engineering[J]. NATURE MATERIALS,2024.

Liu, Xiaowei.,Shan, Junjie.,Cao, Tianjun.,Zhu, Liang.,Ma, Jiayu.,...&Miao, Feng.(2024).On-device phase engineering.NATURE MATERIALS.

Liu, Xiaowei,et al."On-device phase engineering".NATURE MATERIALS (2024).