Add to Cart Bi2Te2S Crystal Bismuth Telluride Sulfide MSRP: Now: $640.00 Was: Bi2Te2S is a van der Waals topological insulator with very easy exfoliation characteristics. Spin and angle-resolved photoelectron spectroscopy as well as density functional theory and studies... BLK-Bi2Te2S MSRP: Now: $640.00 Was: Add to Cart Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $640.00 Was: Subtotal: Add to Cart