Si wafers

• Supplier: Nova wafers

• Contact: Melanie Lightfoot, MLightfoot@novawafers.com

• You can buy them with the procard (not technically considered a chemical), but watch out for the purchase limit if you order more than one box

• Consider whether SSP or DSP (may impact FTIR measurements)

• Consider conductivity (high conductivity for STM or possibly ARPES measurements, intrinsic or very low conductivity absolutely necessary for electrical measurements)

• Growths on thicker wafers showed very poor RHEED - I think they may not heat as thoroughly, resulting in a lower effective temperature for deox

• Orientation: <111> (Bi(001) lattice matches with Si(111) with a coincidence alignment, so that every 6th Bi atom aligns with every 7th Si atom.)

SiC wafers

• Donated by Vincent Gambin at Northrop Grumman in Feb 2017 (phone number 312-812-6251)

• In foil packet in Si wafer desiccator

• I haven't tried growing on them

• 3 wafer pieces. Two are 4H and one is 6H. All are semi-insulating. Si-face is face down in box. Wafers should be cleaned in solvent and BOE before growth.