Tl2S
semiconductor· Tl2S
Thallium sulfide (Tl₂S) is a binary semiconductor compound belonging to the chalcogenide material family, characterized by ionic bonding between thallium and sulfur. While primarily a research material rather than a mainstream industrial semiconductor, Tl₂S has been investigated for infrared detection and photosensitive applications due to its narrow bandgap and strong light absorption in the infrared region. Engineers consider Tl₂S and related thallium compounds where conventional semiconductors (Si, GaAs) are insufficient for long-wavelength infrared sensing, though toxicity concerns and limited commercial maturity restrict adoption compared to alternatives like HgCdTe or lead chalcogenides.
infrared detectorsphotosensitive devicesresearch semiconductorsthermal imagingspectroscopic sensorschalcogenide optoelectronics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | — | eV | — | — | |
| ↳ | — | eV | — | — | |
Seebeck Coefficient(S) | — | µV/K | — | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf)2 entries | — | eV/atom | — | — | |
| ↳ | — | eV/atom | — | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
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.