PtSe2 - Full Area Layers on c-cut Sapphire

  • PtSe2 - Full Area layers on c-cut Sapphire
  • PtSe2 - Full Area layers on c-cut Sapphire
  • Transmission electron images (TEM) acquired from CVD grown full area coverage PtSe2 monolayers on c-cut sapphire confirming high crystallinity
  • Raman spectroscopy measurement confirm monolayer nature of the CVD grown samples and shows the high crystallinity of the CVD samples. PL spectrum does not show any PL signal due to indirect band nature.
Frequently bought together:


This product contains full area coverage PtSe2 layers (single/multi) on c-cut sapphire substrates. Sample size measures 1cm in size and the entire sample surface contains PtSe2 sheets. Synthesized full area coverage PtSe2 is highly crystalline, some regions also display significant crystalline anisotropy. 

Growth method: Our company synthesizes these monolayers using chemical vapor deposition (CVD) using highest purity (6N) gases and precursors in semiconductor grade facilities to produce crystalline and large domain size samples (1-50um). This is unlike commonly used MOCVD process wherein defects are very very large and domain sizes are small (10nm-500nm). 

Sample Properties

<td">Substrate type

Sample size 1cm x 1cm square shaped
Sapphire c-cut (0001)
Coverage Full coverage (mostly few-layers)
Electrical properties Semi-metal
Crystal structure Hexagonal Phase
Unit cell parameters a = b = 0.372 nm, c = 0.508 nm, α = β = 90°, γ = 120°
Production method Low Pressure Chemical Vapor Deposition (LPCVD)
Characterization methods Raman, angle resolved Raman spectroscopy, photoluminescence, absorption spectroscopy TEM, EDS



  • Identification. Full coverage 100% monolayer PtSe2 uniformly covered across c-cut sapphire
  • Physical dimensions. one centimeter in size. Larger sizes up to 2-inch wafer-scale available upon requests.
  • Smoothness. Atomically smooth surface with roughness < 0.15 nm.
  • Uniformity. Highly uniform surface morphology. PtSe2 monolayers uniformly cover across the sample.
  • Purity. 99.9995% purity as determined by nano-SIMS measurements
  • Reliability. Repeatable Raman and photoluminescence response
  • Crystallinity. High crystalline quality, Raman response, and photoluminescence emission comparable to single crystalline monolayer flakes.
  • Substrate. c-cut Sapphire but our research and development team can transfer PtSe2 monolayers onto variety of substrates including PET, quartz, and SiO2/Si without significant compromisation of material quality.
  • Support. 2Dsemiconductors USA is an American owned, regulated, and operated company. Our customers are well-protected by international as well as strict American customer laws and regulations. We give full technical support and guarantee your satisfaction with our well-established customer
  • Defect profile. PtSe2 monolayers do not contain intentional dopants or defects. However, our technical staff can produce defected PtSe2 using a-bombardment technique.

Recent work citing our materials

Broadband Optical Properties of Atomically Thin PtS2 and PtSe2
Nanomaterials 11(12), 3269 (2021)

View AllClose