CdS2

ceramic

· JVASP-138543· CdS2

CdS2 is a cadmium disulfide ceramic compound belonging to the II-VI semiconductor family, known for its wide bandgap and photosensitive properties. Historically used in photoresistors, photodiodes, and radiation detectors where its optical responsivity in the visible and near-infrared spectrum provided reliable performance, though most modern applications have migrated to less toxic alternatives due to cadmium's environmental and health hazards. Engineers encounter CdS2 primarily in legacy optoelectronic systems, specialized radiation detection equipment, and historical photographic applications; its selection today is driven by specific performance requirements where alternatives cannot match cost, response time, or spectral sensitivity rather than new design adoption.

photoresistors and light sensorsradiation detectionlegacy optoelectronic devicesphotodiode arraysvisible-spectrum photodetectionresearch and material studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,607.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3300	-	DFT · OptB88vdW
Shear Modulus(G)	807.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1210	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.142	eV	DFT · OptB88vdW
↳	2.466	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.402	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	13.26	%	DFT · TBmBJ

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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.6955	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2428	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.

CdS2 — Properties & Data | MatWorld

CdS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental