Cd2S
ceramic· JVASP-138542· Cd2S
Cadmium sulfide (Cd₂S) is an inorganic ceramic compound belonging to the II-VI semiconductor family, historically used as a yellow pigment and optical material. It finds application in optoelectronic devices, photoresistors, and photodiodes where its bandgap energy enables light detection in the visible spectrum, though its use has declined in some regions due to cadmium toxicity concerns and regulatory restrictions. Engineers considering this material should note it remains relevant in specialized optoelectronic and sensing applications where its optical properties cannot be readily replaced by non-toxic alternatives.
photodetectors and light sensorsoptoelectronic deviceshistorical pigmentationphotoresistive applicationssemiconductor research
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 5,237.3 | ksi | — | ||
Shear Modulus(G) | 2,026.2 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1650 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.3820 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.3162 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.1341 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.