Mid-infrared photoconductivity spectra of single tellurium nanowires
Abstract
Due to its low bandgap and high optical efficiency, tellurium is considered an important material candidate for mid-infrared applications. Taking advantage of its structural anisotropy, we fabricated tellurium nanowire devices and investigated the radiative interaction of charge carriers by the polarization-resolved photoconductivity spectra under mid-infrared illumination. The intensity of the photoresponse shows sensitive dependence on temperature governed by different recombination mechanisms and could be significantly boosted by a positive voltage bias from the back gate.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 14, 2020
- Source ID
- 10.1063/5.0013188
Entities
People
- Pengke Li
Organizations
- Office of Naval Research
- University of Maryland