Aqueous Dispersion of One-Dimensional van der Waals Material Mo6S3I6 with the Charge Type of the Hydrophobic Dispersant Tail

Sudong Chae; Seungbae Oh; Kyung Hwan Choi; Jiho Jeon; Zhixiang Liu; Cong Wang; Changmo Lim; Xue Dong; Chaeheon Woo; Ghulam Asghar; Jongwha Chang; Md Nurunnabi; Joohoon Kang; Si Young Song; Hak Ki Yu; Jae-Young Choi

doi:10.1021/acsabm.0c00541

Aqueous Dispersion of One-Dimensional van der Waals Material Mo₆S₃I₆ with the Charge Type of the Hydrophobic Dispersant Tail

ACS Appl Bio Mater. 2020 Jul 20;3(7):3992-3998. doi: 10.1021/acsabm.0c00541. Epub 2020 Jul 6.

Authors

Sudong Chae¹, Seungbae Oh¹, Kyung Hwan Choi², Jiho Jeon², Zhixiang Liu², Cong Wang¹, Changmo Lim¹, Xue Dong², Chaeheon Woo¹, Ghulam Asghar², Jongwha Chang³, Md Nurunnabi³, Joohoon Kang¹, Si Young Song⁴, Hak Ki Yu⁵, Jae-Young Choi^{1

2}

Affiliations

¹ School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
² SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea.
³ School of Pharmacy, University of Texas, El Paso, Texas 79968, United States.
⁴ Department of Orthopaedic Surgery, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Republic of Korea.
⁵ Department of Materials Science and Engineering & Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea.

PMID: 35025474
DOI: 10.1021/acsabm.0c00541

Abstract

Aqueous dispersion of van der Waals bonded one-dimensional materials Mo₆S₃I₆ with hydrophobic surfaces has been studied. The surface charge of the dispersed Mo₆S₃I₆ is controlled from negative to positive by the charge type of dispersant tail (anionic, SDS and NaDDBS; cationic, CTAB; nonionic, Poloxamer 407), and through this, it is possible to deposit the dispersed Mo₆S₃I₆ in nanosized by electrophoretic deposition at a desired position. When a flexible device was manufactured by transferring Mo₆S₃I₆, it was confirmed that electrical conductivity can be measured in 40% of elongation and more than 1000 times cyclic test.

Keywords: 1D van der Waals materials Mo6S3I6; aqueous dispersion; dispersant design; stretchable device; surface charge control.