Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture

Jong Kook Won, Chahwan Hwang, Kyunghan Ahn, Seong Young Choi, Yongkyu Lee, Jaehyun Kim, Yangjin Lee, Sung Kyu Park, In Chung, Choongik Kim, Kwanpyo Kim, Sang Hyun Ahn, Min Hyung Lee, Myung Gil Kim

Research output: Contribution to journalArticle

Abstract

Two-dimensional (2D) metal dichalcogenide nanomaterials have been receiving enormous research interest for electronic, optoelectronic, and catalytic applications. However, the facile tunability of alloying and doping, as well as the successful formation of ideal defect-free nanoplate morphology have been hardly achieved for 2D nanomaterials. Herein, we successfully synthesized a series of 2D solid-solution SnSxSe2−x particles of 0.20–2.00 μm width and 30–68 nm thickness with morphological defect-free nanoplate via a solvothermal reaction. With controlled reactivities of elemental chalcogen precursors, a co-surfactant hexylamine together with a structure-directing agent polyvinylpyrrolidone was found to be essential for realizing ideal defect-free nanoplate morphology of SnSxSe2−x particles without either cabbage-like or twinned structure. The successful synthesis of morphologically defect-free SnSxSe2−x nanoplates with rationally controlled energy band gaps ranging from 1.36 eV for SnSe2 to 1.96 eV for SnS2 could provide promising materials for electronics, optoelectronics, and electrocatalytic applications.

Original languageEnglish
Article number120887
JournalJournal of Solid State Chemistry
Volume278
DOIs
Publication statusPublished - 2019 Oct

Fingerprint

Surface defects
surface defects
Passivation
Surface-Active Agents
passivity
Surface active agents
surfactants
Defects
defects
synthesis
Nanostructured materials
Optoelectronic devices
Chalcogens
Povidone
Alloying
electronics
Band structure
alloying
energy bands
Solid solutions

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Won, Jong Kook ; Hwang, Chahwan ; Ahn, Kyunghan ; Choi, Seong Young ; Lee, Yongkyu ; Kim, Jaehyun ; Lee, Yangjin ; Park, Sung Kyu ; Chung, In ; Kim, Choongik ; Kim, Kwanpyo ; Ahn, Sang Hyun ; Lee, Min Hyung ; Kim, Myung Gil. / Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture. In: Journal of Solid State Chemistry. 2019 ; Vol. 278.
@article{ceaaddddf7564e96b76794588af17b1b,
title = "Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture",
abstract = "Two-dimensional (2D) metal dichalcogenide nanomaterials have been receiving enormous research interest for electronic, optoelectronic, and catalytic applications. However, the facile tunability of alloying and doping, as well as the successful formation of ideal defect-free nanoplate morphology have been hardly achieved for 2D nanomaterials. Herein, we successfully synthesized a series of 2D solid-solution SnSxSe2−x particles of 0.20–2.00 μm width and 30–68 nm thickness with morphological defect-free nanoplate via a solvothermal reaction. With controlled reactivities of elemental chalcogen precursors, a co-surfactant hexylamine together with a structure-directing agent polyvinylpyrrolidone was found to be essential for realizing ideal defect-free nanoplate morphology of SnSxSe2−x particles without either cabbage-like or twinned structure. The successful synthesis of morphologically defect-free SnSxSe2−x nanoplates with rationally controlled energy band gaps ranging from 1.36 eV for SnSe2 to 1.96 eV for SnS2 could provide promising materials for electronics, optoelectronics, and electrocatalytic applications.",
author = "Won, {Jong Kook} and Chahwan Hwang and Kyunghan Ahn and Choi, {Seong Young} and Yongkyu Lee and Jaehyun Kim and Yangjin Lee and Park, {Sung Kyu} and In Chung and Choongik Kim and Kwanpyo Kim and Ahn, {Sang Hyun} and Lee, {Min Hyung} and Kim, {Myung Gil}",
year = "2019",
month = "10",
doi = "10.1016/j.jssc.2019.07.048",
language = "English",
volume = "278",
journal = "Journal of Solid State Chemistry",
issn = "0022-4596",
publisher = "Academic Press Inc.",

}

Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture. / Won, Jong Kook; Hwang, Chahwan; Ahn, Kyunghan; Choi, Seong Young; Lee, Yongkyu; Kim, Jaehyun; Lee, Yangjin; Park, Sung Kyu; Chung, In; Kim, Choongik; Kim, Kwanpyo; Ahn, Sang Hyun; Lee, Min Hyung; Kim, Myung Gil.

In: Journal of Solid State Chemistry, Vol. 278, 120887, 10.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture

AU - Won, Jong Kook

AU - Hwang, Chahwan

AU - Ahn, Kyunghan

AU - Choi, Seong Young

AU - Lee, Yongkyu

AU - Kim, Jaehyun

AU - Lee, Yangjin

AU - Park, Sung Kyu

AU - Chung, In

AU - Kim, Choongik

AU - Kim, Kwanpyo

AU - Ahn, Sang Hyun

AU - Lee, Min Hyung

AU - Kim, Myung Gil

PY - 2019/10

Y1 - 2019/10

N2 - Two-dimensional (2D) metal dichalcogenide nanomaterials have been receiving enormous research interest for electronic, optoelectronic, and catalytic applications. However, the facile tunability of alloying and doping, as well as the successful formation of ideal defect-free nanoplate morphology have been hardly achieved for 2D nanomaterials. Herein, we successfully synthesized a series of 2D solid-solution SnSxSe2−x particles of 0.20–2.00 μm width and 30–68 nm thickness with morphological defect-free nanoplate via a solvothermal reaction. With controlled reactivities of elemental chalcogen precursors, a co-surfactant hexylamine together with a structure-directing agent polyvinylpyrrolidone was found to be essential for realizing ideal defect-free nanoplate morphology of SnSxSe2−x particles without either cabbage-like or twinned structure. The successful synthesis of morphologically defect-free SnSxSe2−x nanoplates with rationally controlled energy band gaps ranging from 1.36 eV for SnSe2 to 1.96 eV for SnS2 could provide promising materials for electronics, optoelectronics, and electrocatalytic applications.

AB - Two-dimensional (2D) metal dichalcogenide nanomaterials have been receiving enormous research interest for electronic, optoelectronic, and catalytic applications. However, the facile tunability of alloying and doping, as well as the successful formation of ideal defect-free nanoplate morphology have been hardly achieved for 2D nanomaterials. Herein, we successfully synthesized a series of 2D solid-solution SnSxSe2−x particles of 0.20–2.00 μm width and 30–68 nm thickness with morphological defect-free nanoplate via a solvothermal reaction. With controlled reactivities of elemental chalcogen precursors, a co-surfactant hexylamine together with a structure-directing agent polyvinylpyrrolidone was found to be essential for realizing ideal defect-free nanoplate morphology of SnSxSe2−x particles without either cabbage-like or twinned structure. The successful synthesis of morphologically defect-free SnSxSe2−x nanoplates with rationally controlled energy band gaps ranging from 1.36 eV for SnSe2 to 1.96 eV for SnS2 could provide promising materials for electronics, optoelectronics, and electrocatalytic applications.

UR - http://www.scopus.com/inward/record.url?scp=85070931718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070931718&partnerID=8YFLogxK

U2 - 10.1016/j.jssc.2019.07.048

DO - 10.1016/j.jssc.2019.07.048

M3 - Article

AN - SCOPUS:85070931718

VL - 278

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

SN - 0022-4596

M1 - 120887

ER -