| AVS 56th International Symposium & Exhibition | |
| Thin Film | Tuesday Sessions |
| Session TF1+SE-TuM |
| Session: | Glancing Angle Deposition I |
| Presenter: | M.F. Cansizoglu, University of Arkansas at Little Rock |
| Authors: | M.F. Cansizoglu, University of Arkansas at Little Rock T. Karabacak, University of Arkansas at Little Rock H.W. Seo, University of Arkansas at Little Rock R. Engelken, Arkansas State University |
| Correspondent: | Click to Email |
Indium (III) sulfide is a wide bandgap and photoconductive material that has attracted attention due to its potential applications in optical sensors and in photovoltaic devices. High optical absorption in active regions of these devices is one of the key parameters that determine their performance especially in solar cell and photodetector applications. In this study, we show that indium sulfide nanorod arrays deposited by glancing angle deposition (GLAD) technique have superior optical absorption and low reflectance properties compared to conventional flat thin film coatings. Our GLAD nanorods had about 96% absorption in the sub-600 nm spectrum, while much thicker and denser thin films of indium sulfide was able to absorb only 80% of the incident light in the same spectrum. Due to the high optical absorption, a significant photoconductivity response was also observed in the nanorod samples, whereas no measurable photoresponse was detected in conventional thin films. In addition, we give a preliminary description of the enhanced light absorption properties of the nanorods by using Shirley-George Model that predicts enhanced diffuse scattering and reduced reflection of light due the rough morphology.