GeSn

semiconductor

· GeSn

GeSn is a binary semiconductor alloy composed of germanium and tin, belonging to the group IV-IV material family. It is primarily a research and emerging-technology material designed to achieve direct bandgap behavior and enhanced optical properties compared to pure germanium, making it attractive for next-generation photonic and optoelectronic applications. The material is notable for its potential to enable efficient light emission and detection in the infrared region while remaining compatible with existing silicon-based manufacturing infrastructure, though widespread commercial deployment remains limited.

infrared photodetectorsintegrated photonicssilicon photonics platformsmid-infrared light sourcesemerging optoelectronicsresearch and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.8000	eV	—

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.

GeSn

Electrical Properties

Regulatory Screening

Environmental

Export Control