Peel-and-Stick Integration of Atomically Thin Nonlayered PtS Semiconductors for Multidimensionally Stretchable Electronic Devices

Sang Sub Han, Tae Jun Ko, Mashiyat Sumaiya Shawkat, Alex Ka Shum, Tae Sung Bae, Hee Suk Chung, Jinwoo Ma, Shahid Sattar, Shihab Bin Hafiz, Mohammad M.Al Mahfuz, Sohrab Alex Mofid, J. Andreas Larsson, Kyu Hwan Oh, Dong Kyun Ko, Yeonwoong Jung

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Various near-atom-thickness two-dimensional (2D) van der Waals (vdW) crystals with unparalleled electromechanical properties have been explored for transformative devices. Currently, the availability of 2D vdW crystals is rather limited in nature as they are only obtained from certain mother crystals with intrinsically possessed layered crystallinity and anisotropic molecular bonding. Recent efforts to transform conventionally non-vdW three-dimensional (3D) crystals into ultrathin 2D-like structures have seen rapid developments to explore device building blocks of unique form factors. Herein, we explore a "peel-and-stick" approach, where a nonlayered 3D platinum sulfide (PtS) crystal, traditionally known as a cooperate mineral material, is transformed into a freestanding 2D-like membrane for electromechanical applications. The ultrathin (∼10 nm) 3D PtS films grown on large-area (>cm2) silicon dioxide/silicon (SiO2/Si) wafers are precisely "peeled" inside water retaining desired geometries via a capillary-force-driven surface wettability control. Subsequently, they are "sticked" on strain-engineered patterned substrates presenting prominent semiconducting properties, i.e., p-type transport with an optical band gap of ∼1.24 eV. A variety of mechanically deformable strain-invariant electronic devices have been demonstrated by this peel-and-stick method, including biaxially stretchable photodetectors and respiratory sensing face masks. This study offers new opportunities of 2D-like nonlayered semiconducting crystals for emerging mechanically reconfigurable and stretchable device technologies.

Original languageEnglish (US)
Pages (from-to)20268-20279
Number of pages12
JournalACS Applied Materials and Interfaces
Issue number17
StatePublished - May 4 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science


  • PtS
  • non-vdW crystal
  • photodetector
  • platinum sulfide
  • stretchable device


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