Cd1 S1

semiconductor

· Cd1 S1

Cadmium sulfide (CdS) is a II-VI compound semiconductor characterized by a direct bandgap and high optical absorption in the visible spectrum. It is widely used in optoelectronic devices, photovoltaic applications, and photodetectors, where its tunable bandgap and strong light-absorbing properties make it valuable for converting light to electrical signals and vice versa. CdS remains relevant in thin-film solar cells, particularly in heterojunction architectures, though cadmium's toxicity has driven research toward cadmium-free alternatives in consumer applications.

thin-film photovoltaicsphotodetectors and image sensorsoptoelectronic deviceswindow layers in solar cellsUV-visible light absorption applicationsresearch semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	2,455.9	ksi	—
Shear Modulus(G)	1,551.9	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.8868	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3590	eV/atom	—

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.

Cd1 S1

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control