CdInS2

CdInS2 is a thermodynamically stable semiconducting compound composed of cadmium, indium, and sulfur.

CdInS
Crystal structure of CdInS2 (cubic, Fd-3m (No. 227))
Ground-state structure · Materials Project
Overview

About CdInS2

CdInS2 is a semiconducting ternary sulfide that maintains a thermodynamically stable position on the convex hull. Its structural versatility is highlighted by multiple reported configurations across various databases, reflecting a complex interplay between its constituent elements.

As a stable semiconductor, this material is of significant interest for researchers investigating optoelectronic and photovoltaic applications. Its ability to form distinct structural phases makes it a compelling subject for studies focused on tuning electronic properties through synthesis control.

At a glance

Key Properties

Cross-validated computational properties for CdInS2, aggregated across 3 databases.

Band Gap

1.05 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

5
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for CdInS2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Fd-3m (No. 227)cubic1.050.0000-14.7025.19
P-3m1 (No. 164)trigonal0.000.1905-15.2275.48
P-3m1 (No. 164)
P-3m1 (No. 164)
4.98
Uses

Applications

Where CdInS2 is used.

Semiconductor researchOptoelectronicsPhotovoltaic material development
Reference

Frequently Asked Questions

Common questions about CdInS2, answered from cross-validated data.

What is CdInS2?

CdInS2 is a thermodynamically stable semiconducting compound composed of cadmium, indium, and sulfur.

More questions
What is CdInS2 used for?
CdInS2 is used in semiconductor research, optoelectronics, and photovoltaic material development.
What is the band gap of CdInS2?
CdInS2 has a DFT-computed band gap of 1.05 eV across 5 reported structures.
Is CdInS2 a metal, semiconductor, or insulator?
With a band gap up to 1.05 eV it is a semiconductor.
Is CdInS2 thermodynamically stable?
Yes — CdInS2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of CdInS2?
The lowest-energy reported polymorph of CdInS2 is cubic symmetry, space group Fd-3m (No. 227).
What is the density of CdInS2?
The computed density of the ground-state structure of CdInS2 is 5.19 g/cm³.
How many polymorphs of CdInS2 are known?
5 structures of CdInS2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does CdInS2 contain?
CdInS2 contains Cd, In, and S (3 elements).
Where does the data for CdInS2 come from?
CdInS2 data is cross-referenced from materials_project, jarvis, omat24.
Comparison

How It Compares

As a stable ternary sulfide, CdInS2 represents a key point in the chemical space of cadmium-indium-sulfur systems. While it exists as a standalone entry in this context, it serves as a foundational example of how combining these specific elements leads to robust, stable semiconducting architectures that are essential for developing next-generation electronic components.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).

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