Journal
NANOMATERIALS
Volume 8, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/nano8100794
Keywords
1D materials; Nb2Se9; liquid exfoliation; solvent dispersion
Categories
Funding
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2017M3A7B8065561]
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2017R1A4A1015770]
- National Research Foundation of Korea [2017M3A7B8065561] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The optimum solvent for Nb2Se9 dispersion, which is a new type of one dimensional (1D) material, is investigated. Among several solvents (16 solvents in total), strong dispersion was observed in benzyl alcohol, isopropyl alcohol, isobutyl alcohol, and diacetone alcohol, which have medium dielectric constants in the range of 10 to 30 and surface tension in the range of 25 to 35 mJ m(-2). 1D Nb2Se9 chains, whose size is less than 10 nm, are well dispersed and it is possible to disperse mono-chains of 1 nm or less in a specific dispersion region. The 1D unit chain with dangling bond free surface and high volume to area ratio is expected to be used in applications that utilize the surface of the material. Such dispersion is an important first step towards various potential applications and is an indispensable scientific goal for the practical applications of Nb2Se9.
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