| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2024
|
| Presentation Title |
Infrared Colloidal Quantum Dot Photodetectors |
| Author(s) |
Ayaskanta Sahu |
| On-Site Speaker (Planned) |
Ayaskanta Sahu |
| Abstract Scope |
Colloidal quantum dots (QDs) offer size-, shape-, and composition-tunable electronic and optical properties thus being used in a wide array of devices ranging from solar cells to light-emitting diodes. However, most of these applications are limited to the visible and near infrared (IR) region of the electromagnetic spectrum. In this talk, I will present our recent efforts to push the envelope of the applicability of these colloidal QDs towards short-wave and mid-wave IR applications. Mid-wavelength infrared (MWIR) photons have high penetration through airborne obscurants such as fog and mists, rendering them ideal for use in long-distance thermal sensing and enhanced night vision applications. Colloidal quantum dot-based MWIR photodetectors present a promising path toward fabricating detectors at significantly reduced cost and complexity compared to state-of-the-art epitaxial grown quantum-well IR detectors. This presentation will focus on the synthesis, characterization, and room temperature device characteristics of HgTe and Ag2Se based colloidal IR QDs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Nanotechnology, Thin Films and Interfaces |