Low-Temperature Centimeter-Scale Growth of Layered 2D SnS for Piezoelectric Kirigami Devices

Changhyeon Yoo, Vivek Adepu, Sang Sub Han, Jung Han Kim, June Chul Shin, Justin Cao, Junsung Park, Mohammad M. Al Mahfuz, Laurene Tetard, Gwan Hyoung Lee, Dong Kyun Ko, Parikshit Sahatiya, Yeonwoong Jung

Research output: Contribution to journalArticlepeer-review

Abstract

Tin monosulfide (SnS) is a promising piezoelectric material with an intrinsically layered structure, making it attractive for self-powered wearable and stretchable devices. However, for practical application purposes, it is essential to improve the output and manufacturing compatibility of SnS-based piezoelectric devices by exploring their large-area synthesis principle. In this study, we report the chemical vapor deposition (CVD) growth of centimeter-scale two-dimensional (2D) SnS layers at temperatures as low as 200 °C, allowing compatibility with processing a range of polymeric substrates. The intrinsic piezoelectricity of 2D SnS layers directly grown on polyamides (PIs) was confirmed by piezoelectric force microscopy (PFM) phase maps and force-current corroborative measurements. Furthermore, the structural robustness of the centimeter-scale 2D SnS layers/PIs allowed for engraving complicated kirigami patterns on them. The kirigami-patterned 2D SnS layer devices exhibited intriguing strain-tolerant piezoelectricity, which was employed in detecting human body motions and generating photocurrents irrespective of strain rate variations. These results establish the great promise of 2D SnS layers for practically relevant large-scale device technologies with coupled electrical and mechanical properties.

Original languageEnglish (US)
Pages (from-to)20680-20688
Number of pages9
JournalACS Nano
Volume17
Issue number20
DOIs
StatePublished - Oct 24 2023

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Engineering
  • General Physics and Astronomy

Keywords

  • 2D SnS
  • 2D TMD
  • 2D layer
  • kirigami
  • piezoelectricity
  • stretchable device

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