Dr. Robert D. Engelken, Arkansas State University, College of Engineering

This presentation will first survey the projects currently underway in the ASU Optoelectronic Materials Research Laboratory in conjunction wioth and/or as funded through NASA EPSCoR, EPA EPSCoR, the Arkansas Space Grant Consortium, the National Institutes of Health, InvoTek, Inc., and  ASTA. The main focus will then be on progress that the laboratory has recently made in the development of relatively low hazard  and low environmental impact thiolacetic acid-based  chemical precipitation  baths for depositing thin films of semiconducting indium(III) sulfide, a material of significant interest  for optoelectronic  applications but challenging to chemically deposit from conventional basic aqueous solutions of thiourea or thioacetamide.