Publications by authors named "Davis Unruh"
Heterojunction Si solar cells exhibit notable performance degradation. We modeled this degradation by electronic defects getting generated by thermal activation across energy barriers over time. To analyze the physics of this degradation, we developed the SolDeg platform to simulate the dynamics of electronic defect generation.
View Article and Find Full Text PDFThe efficiency of nanoparticle (NP) solar cells has grown impressively in recent years, exceeding 16%. However, the carrier mobility in NP solar cells, and in other optoelectronic applications remains low, thus critically limiting their performance. Therefore, carrier transport in NP solids needs to be better understood to further improve the overall efficiency of NP solar cell technology.
View Article and Find Full Text PDFArticle Synopsis
- The research shows that knowledge from the disordered Mott-Hubbard model can provide valuable insights into nanoparticle (NP) solids.
- A new simulator called HINTS was developed to analyze the transport properties of NP solids, focusing on localized phases and their transitions.
- Using a combination of HINTS and dynamical mean field theory (DMFT), the study reveals that both methods yield similar mobility scenarios and helps create a detailed phase diagram for PbSe NP solids based on disorder and filling.