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The emerging optoelectronic material family of transition metal dichalcogenides may be useful in flexible electronics. However, only MoS2 has been grown directly as thin films on polymer substrates, owing in part to the high deposition temperatures typically required to prepare these materials. Changing vapor deposition chemistry can allow much lower film growth temperatures. We show that when using tetrakis(dimethylamido)zirconium(IV), Zr(NMe2)4, and H2S as precursors, low-temperature chemical vapor deposition affords films of zirconium(IV) sulfide (ZrS2) directly on polymer substrates. Stoichiometric and crystalline ZrS2 films can be deposited with good adhesion on polyimide (Kapton) and polyether ether ketone (PEEK) substrates at 150–200 °C. The films deposited on polydimethylsiloxane (PDMS) substrates were stoichiometric and crystalline, but not well adhered. Films on all substrates were polycrystalline with small (20–30 nm) grains, highly oriented in the [001] direction of the 1T ZrS2 phase. The films grown on PEEK have resistivities ca. 625 Ω cm, two orders of magnitude higher than ZrS2 films deposited at 800–1000 °C from ZrCl4 and sulfur. The films grown on Kapton are similarly conductive, whereas films on PDMS are not conductive.
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This content will become publicly available on June 1, 2026
Zirconium disulfide single crystal, ZrS2(0001), characterized by X-ray photoelectron spectroscopy
We analyzed the surface of a freshly exfoliated single crystal of zirconium(IV) sulfide, ZrS2. Survey spectra and high-resolution spectra from the core levels Zr 4p, Zr 4s, Zr 3d, Zr 3p, Zr 3s, S 2p, S 2s, O 1s, and C 1s were acquired. The binding energies and peak area ratios of a stoichiometric ZrS2 single crystal provide a pure reference of well-defined composition for material deposited by chemical or physical vapor deposition methods.
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- Award ID(s):
- 2224949
- PAR ID:
- 10572509
- Publisher / Repository:
- American Vacuum Society
- Date Published:
- Journal Name:
- Surface Science Spectra
- Volume:
- 32
- Issue:
- 1
- ISSN:
- 1055-5269
- Subject(s) / Keyword(s):
- Zirconium disulfide Transition metal dichalcogenides X-ray photoelectron spectroscopy Semiconductors
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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