Arsenic sulfide (As2S3) is a direct gap semiconductor material with a band gap of 2.7eV. This material is single crystal and exfoliated in atomically thin flakes. Monolayers or few-layers have yet to be isolated and characterized.  Item is for a 5mm x 5mm specimen.
 
 
As with all of the materials in our shop, items are in stock and ready for dispatch within 48 hours of order. Free DHL worldwide shipment!
 
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