Low-cost Arduino-based interface for controlling gas flow inchemical vapor deposition graphene synthesis

摘要

In this work, we present a low-cost computer controlled, Arduino-based automation of the mass flow controllers for a chemical vapordeposition system. The major goal of the system is to provide the possibility to produce flow ramps of several gases for material synthesis.We used an Arduino Due board that only has the possibility to control two signals, and increased this with a multiplexor so we could control4 signals. The control board is based on the Arduino open source electronics prototyping platform, Labview software and Matlab’s Simulinksoftware. We quantify the quality of our automation system by comparing the Raman spectra of our graphene samples obtained after usingour Arduino system, the manual method and using a National Instrument board. The results are very good as our 50 dollars system showedsimilar results with the National Instrument system and the manual method.