carbon nanotubes, carbon nanotube, nanotube, nanotubes,carbon nanotubes You have chosen Silicon as substrate material. Please email Array Specialist or call us at (617)581 6747 or fax to (617) 581 6749 for your order or inquiry. Price: Size1 array: per piece $1000.00 Size2 array: per piece $2000.00 Customers in State of Indiana: 7% of sales tax must be charged unless all information in each section of ST-105 is fully completed by the purchaser. If you are exempt from sales tax, please fill out Form ST-105 at or before you place an order by clicking Indiana Department of Revenue General Sales Tax Exemption Certificate Please fax the form to (617) 581 6749 Thanks! updated: 05/13/2008