Sr2Ge2Se5 — Properties & Data | MatWorld

Sr2Ge2Se5

ceramic

· JVASP-23042· Sr2Ge2Se5

Sr2Ge2Se5 is a strontium germanium selenide ceramic compound belonging to the chalcogenide family, materials based on heavier Group XVI elements. This compound is primarily investigated in research contexts for infrared optics and nonlinear optical applications, where selenide ceramics offer broadband transparency in the mid- to far-infrared spectrum unavailable from oxide ceramics. Engineers consider selenide ceramics when designing thermal imaging systems, spectroscopy instrumentation, or laser components operating in infrared wavelengths where conventional optical materials become opaque.

infrared opticsnonlinear optical devicesspectroscopy windowsthermal imaging componentsresearch-phase materialslaser applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1768	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.037	eV	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.4067	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.323	me	DFT · OptB88vdW · 27°C
Thermoelectric Power Factor(PF)2 entries	0.000963	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000832	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-126.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	292.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.127	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Sr2Ge2Se5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental