Iron Phosphorus Triselenide (FePSe3) Powder and Crystal

2D Materials, Low Dimensional Materials, Materials, Transition Metal Chalcogenides (TMCs), Transition Metal Phosphorus Chalcogenides (TMPCs)

Low price, high purity 2D iron phosphorus triselenide powder and crystal

For the development of next-generation electronics, optoelectronics, and nanotechnology

Iron phosphorus triselenide (FePSe₃) belongs to a layered MPX₃ (M = Mn, Fe, Ni, Zn and X = S, Se) family. FePSe₃, with a layered structure like graphite, is a low bandgap ternary magnetic semiconductor with p-type characteristics as grown single crystals. Like FePS₃, FePSe₃ has also been predicted to have Ising-type antiferromagnetic ordering from its bulk form to the ultrathin nanosheets.

High Purity

High purity ≥99.999% Iron Phosphorus Triselenide (FePSe3)) Crystal

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Low price Iron Phosphorus Triselenide (FePSe3)

Powder & Crystal

Available in Powder & Crystal forms

Antiferromagnetic semiconductor FePSe₃ shows superconductivity along with the structural transition and vanishing of magnetic moment with a starting Tc ~2.5 K at 9.0 GPa and the maximum Tc ~5.5 K around 30 GPa.

Having a rhombohedral crystal system with space group R3̅ , FePSe₃ undergoes isostructural or quasi-isostructural phase transitions under applied pressure at ~8 GPa

We supply low price iron phosphorus triselenide in several different forms for a range of applications.

Iron Phosphorus Triselenide Powder

Can be used for preparation of iron phosphorus triselenide nanoplates and ultrathin films

Available in quantities of 1 g

≥99.995% purity

From £350

Iron Phosphorus Triselenide Crystals by Size

Can be used to produce single or few-layer iron phosphorus triselenide sheets via mechanical or liquid exfoliation

Small (≥10 mm²) or medium (≥25 mm²) crystals available*

≥99.999% purity

From £520

*Typical representative size, areas/dimensions may vary

Bulk single iron phosphorus triselenide crystal is most commonly used as sources from which single or few-layer sheets can be obtained via either mechanical or liquid exfoliation. Single iron phosphorus triselenide crystal or films produced from such crystals are suitable for study using atomic force microscopy or transmission electron microscopy.

Few-layer FePSe₃ nanosheets and nanoparticles can also obtained from iron phosphorus triselenide powder by liquid-exfoliation.

Technical Data

CAS Number	N/A
Chemical Formula	FePSe₃
Molecular Weight	323.70 g/mol
Bandgap	~1.3 eV (bulk)
Preparation	Synthetic - Chemical Vapour Transport (CVT)
Structure	Rhombohedral
Electronic Properties	2D magnetic semiconductor
Melting Point	N/A
Colour	Dark brown
Synonyms	Iron selenophosphate
Classification / Family	2D layered transition metal phosphorus trichalcogenides (MPX₃), Magnetic semiconductor, Antiferromagnet, Nano-electronics, Nano-photonics, Photovoltaic, Materials science

Product Details

Form	Purity
Powder	≥99.995%
Crystal	≥99.999%

Pricing Table

Product Code	Form	Size/Weight*	Price
M2208C1	Powder	1 g	£350
M2208A10	Crystal	Small (≥10 mm²)	£520 ea.
M2208A25	Crystal	Medium (≥25 mm²)	£850 ea.

*typical representative size, areas/dimensions may vary.

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MSDS Documents

Iron phosphorus triselenide powder

Iron phosphorus triselenide crystal

Structure of Iron Phosphorus Triselenide

Iron phosphorus triselenide (FePSe₃) belongs to a layered MPX₃ (M = Mn, Fe, Ni, Zn and X = S, Se) family, having a rhombohedral crystal iron phosphorus triselenide system and contains three layers of FePSe₃ per unit cell.

In the FePSe₃crystal, the P atom is coordinated to three S atoms and one P atom to form a [P₂Se₆]⁴^- unit. The [P₂Se₆]⁴^- unit is connected with six Fe atoms, which are arranged in a honeycomb plane structure. However, unlike FePS₃ where the atomic layers of the sulfides stack in the C2/m space group, selenides stack in R3̅.

Raman spectrum of bulk FePSe₃ shows intense peaks at 215 and 168 cm^-1that are assigned to the stretching vibration of P−Se bond in a [P₂Se₆]⁴^- cluster.

Iron phosphorus triselenide crystal structure — The crystal structure of single-layer Iron phosphorus triselenide (FePSe₃)

Properties of Iron Phosphorus Triselenide

After exfoliation of iron phosphorus triselenide crystal or powder, FePSe₃ typically has the following properties:

Rhombohedral (space group: R3̅ )
Transition metal phosphorus trichalcogenides (MPX₃)
FePSe₃ is predicted to have Ising-type antiferromagnetic ordering
Antiferromagnetic semiconductor FePSe₃ shows superconductivity along with the structural transition and vanishing of magnetic moment

Applications of Iron Phosphorus Triselenide

Iron phosphorus triselenide (FePSe₃) single crystals can be used to prepare monolayer and few-layer FePSe₃ by mechanical or liquid exfoliation.

Iron phosphorus triselenide is suitable for liquid chemical exfoliation to prepare FePSe₃ nanosheets and nanoparticles down to few-layer films.

Iron phosphorus triselenide (FePSe₃) quantum sheets are excellent and highly stable trifunctional electrocatalyst for hydrogen evolution, oxygen evolution, and oxygen reduction reactions. Apart from being one of the most effective electrocatalysts for hydrogen evolution reactions (HER), FePSe₃ can also be intercalated with llthium or sodium ions for batteries, transistors and other energy storage devices.

Iron phosphorus triselenide (FePSe₃) single crystals can be used to prepare monolayer and few-layer FePSe₃ by mechanical or liquid exfoliation.

Iron phosphorus triselenide is suitable for liquid chemical exfoliation to prepare FePSe₃ nanosheets and nanoparticles down to few-layer films.

Literature and Reviews

Electronic and magnetic properties of single-layer MPX3 metal phosphorous trichalcogenides, B. Chittari et al., Phys. Rev. B, 94, 184428 (2016); doi: 10.1103/PhysRevB.94.184428.
Metallic FePSe3 nanoparticles anchored on N-doped carbon framework for All-pH hydrogen evolution reaction, J. Yu et al., Nano Energy, 57, 222-229 (2019); doi: 10.1016/j.nanoen.2018.12.055.
The Role of the Metal Element in Layered Metal Phosphorus Triselenides upon Their Electrochemical Sensing and Energy Applications, R. Gusmão et al., ACS Catal., 7 (12), 8159-8170 (2017); doi: 10.1021/acscatal.7b02134.

Intrinsic Van Der Waals Magnetic Materials from Bulk to the 2D Limit: New Frontiers of Spintronics, H. Li et al., Adv. Mater., 31 (27), 1900065 (2019); doi: 10.1002/adma.201900065.
Few-Layer Iron Selenophosphate, FePSe3: Efficient Electrocatalyst Towards Water Splitting and Oxygen Reduction Reactions, D. Mukherjee et al., ACS Appl. Energy Mater., 1 (1), 220-231 (2018); doi: 10.1021/acsaem.7b00101.
Ion Gated Synaptic Transistors Based on 2D van der Waals Crystals with Tunable Diffusive Dynamics, J. Zhu et al., Adv. Mater., 1800195 (2018); DOI: 10.1002/adma.201800195.
Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover, Y. Wang et al., Nat. Commun., 9, 1914 (2018); DOI: 10.1038/s41467-018-04326-1.
Weak Van der Waal Stacking, Wide-Range Band Gap and Raman Study on Ultrathin Layers of Metal Phosphorus Trichalcogenides, K. Du et al., ACS Nano.,10(2):1738-43 2016); doi: 10.1021/acsnano.5b05927

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Transition Metal Chalcogenides Collection

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