Please also see our PTAS product in liquid form [Product page]
The only commercially available PTAS organics. To date our PTAS materials enable many researchers to synthesize 2D CVD materials. Perylene-3,4,9,10-tetracarboxylic acid tetrapotassium acid salt (PTAS) acts as a seed for monolayer metal sulfides by catalyzing reduced metal oxides onto various substrates. This polymer has been synthesized at our facilities from perylene-3,4,9,10-tetracarboxylic dianhydride (PTC-DA) and the final product has been purified and filtered x7 times to reach 99.997% purity. Growing metal sulfides on various oxide surfaces becomes much easier after spin coating 10-1000 microMolar PTAS onto desired substrates. Each order contains PTAS solid (powder form) in a Argon sealed glass vial that is sufficient to produce large volumes (~1 liter) PTAS DI solution for successful CVD growth.
This product is sold in solid form to enable our customers to prepare their own PTAS concentrations at desired amounts.
Partial List of Publications Using This Product
Berkeley - M. Zhao et.al. "Large-scale chemical assembly of atomically thin transistors" Nature Nanotechnology 11, 954–959 (2016)
Y. Lee et.al. "Characterization of the structural defects in CVD-grown monolayered MoS2 using near-field photoluminescence imaging" Nanoscale, 2015,7, 11909-11914 DOI: 10.1039/C5NR02897C