Semiconductor Thin Films only 1 Atom Thick (image) North Carolina State University Share Print E-Mail Caption The thin films are only one atom thick, but can be made wide enough to coat wafers that are two inches wide or larger. The films are made of molybdenum sulfide, an inexpensive semiconductor material. Credit Linyou Cao, North Carolina State University Usage Restrictions Image credit must be given. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.