N8Si6

N8Si6 is a thermodynamically stable, insulating silicon-nitrogen compound studied for its potential roles in advanced battery anode architectures.

Crystal structure of N8Si6 (hexagonal, P63/m (No. 176))
Ground-state structure · Materials Project
Overview

About N8Si6

N8Si6 is a distinct inorganic compound composed of silicon and nitrogen, characterized by its wide-band-gap insulating nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement within the silicon-based material family.

This material is of significant interest in the development of advanced silicon anode materials. Its electronic structure and inherent stability make it a subject of ongoing investigation for potential applications in high-performance battery technologies where structural integrity and insulating properties are critical.

At a glance

Key Properties

Cross-validated computational properties for N8Si6, aggregated across 3 databases.

Band Gap

0.18–4.65 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

64
3 databases, 7 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for N8Si6, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P63/m (No. 176)hexagonal4.250.0000-10.2983.20
P31c (No. 159)trigonal4.650.0035-10.2943.19
I-43d (No. 220)cubic4.030.0995-10.1983.41
Fd-3m (No. 227)cubic3.330.1471-10.1503.95
Pnma (No. 62)orthorhombic3.910.2877-10.0103.83
P1 (No. 1)triclinic1.490.3644-9.9332.99
P1 (No. 1)triclinic1.990.3866-9.9113.00
P63/mmc (No. 194)hexagonal1.820.4951-9.8023.51
P1 (No. 1)triclinic0.680.5864-9.7112.91
P1 (No. 1)triclinic0.180.6257-9.6722.88
P63/m (No. 176)hexagonal2.530.6349-9.6631.27
P1 (No. 1)triclinic0.910.6416-9.6562.85
Uses

Applications

Where N8Si6 is used.

Battery anode researchSemiconductor material developmentHigh-stability structural ceramics
Reference

Frequently Asked Questions

Common questions about N8Si6, answered from cross-validated data.

What is N8Si6?

N8Si6 is a thermodynamically stable, insulating silicon-nitrogen compound studied for its potential roles in advanced battery anode architectures.

More questions
What is N8Si6 used for?
N8Si6 is used in battery anode research, semiconductor material development, and high-stability structural ceramics.
What is the band gap of N8Si6?
N8Si6 has a DFT-computed band gap of 0.18–4.65 eV across 64 reported structures.
Is N8Si6 a metal, semiconductor, or insulator?
With a wide band gap up to 4.65 eV it is an insulator / wide-band-gap material.
Is N8Si6 thermodynamically stable?
Yes — N8Si6 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of N8Si6?
The lowest-energy reported polymorph of N8Si6 is hexagonal symmetry, space group P63/m (No. 176).
What is the density of N8Si6?
The computed density of the ground-state structure of N8Si6 is 3.20 g/cm³.
How many polymorphs of N8Si6 are known?
64 structures of N8Si6 are reported across 3 databases, spanning 7 distinct space groups.
What elements does N8Si6 contain?
N8Si6 contains N and Si (2 elements).
Where does the data for N8Si6 come from?
N8Si6 data is cross-referenced from materials_project, aflow.
Comparison

How It Compares

Within the silicon anode materials class.

Within the diverse landscape of silicon-based materials, N8Si6 stands out for its insulating electronic character, contrasting sharply with the metallic or semiconducting nature of siblings like FeSi, MoSi2, and elemental Si. While many class members such as NaSi or Mg2Si are investigated primarily for their electrochemical reactivity, N8Si6 offers a unique, highly stable framework that provides a different structural paradigm for anode design.

Explore

Related Compounds

Other Silicon Anode Materials in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).

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