About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Understanding the structure of nanomaterials using infrared spectroscopy |
| Author(s) |
Thomas Folland |
| On-Site Speaker (Planned) |
Thomas Folland |
| Abstract Scope |
Infrared spectroscopy uses 1-100µm light to probe nanomaterials' vibrational and electronic properties. The optical signatures of materials in the infrared can encode useful information on the morphology and physical properties of different nanomaterial samples. However, performing quantitative optical analysis of nanomaterial samples can be challenging. In this talk, we will discuss how polarized infrared spectroscopy techniques can be leveraged to gain helpful information on the structural properties of different nanomaterials, which can be used for diagnostics. We will discuss two types of nanomaterials – silicon nanowires and van der Waals materials. In the case of silicon nanowires, we will show how infrared spectroscopy allows us to measure the density and length of the nanowires, as well as the presence of interfacial oxides formed during wire growth. In the case of van der Waals materials, we will discuss how microspectroscopy can resolve the optical properties of individual vdW crystallites. |