2 papers
cond-mat.mtrl-sci2025
Efficient broadband terahertz generation by above band-gap excitation of the pyroelectric ZnSnN2
T. S. Seifert, H. Hempel, O. Gückstock +10
Terahertz (THz) radiation is a powerful probe of low-energy excitations in all phases of matter. However, it remains a challenge to find materials that efficiently generate THz rad…
cond-mat.mtrl-sci2024
The Potential of Geminate Pairs in Lead Halide Perovskite revealed via Time-resolved Photoluminescence
Hannes Hempel, Martin Stolterfoht, Orestis Karalis +1
Photoluminescence (PL) under continuous illumination is commonly employed to assess voltage losses in solar energy conversion materials. However, the early temporal evolution of th…