183 citations · 362 across the 13 of their papers we have counts for
10 papers · 1 filter
Hot Phonon Bottlenecks and the Role of Non-Equilibrium Acoustic Phonons in III-V Multi-Quantum Well Systems
Izak Baranowski, Dragica Vasileska, Ian R. Sellers +1
The hot phonon bottleneck effect is a promising mechanism for the realization of a true hot carrier solar cell. Prior work has assumed that the acoustic phonons created via decay o…
Hydrogen-induced degradation dynamics in silicon heterojunction solar cells via machine learning
Andrew Diggs, Zitong Zhao, Reza Vatan +5
Among silicon-based solar cells, heterojunction cells hold the world efficiency record. However, their market acceptance is hindered by an initial 0.5\% per year degradation of the…
Low-Frequency Electronic Noise in the Aluminum Gallium Oxide Schottky Barrier Diodes
Subhajit Ghosh, Dinusha Herath Mudiyanselage, Sergey Rumyantsev +5
We report on the low-frequency electronic noise in (AlGa)O Schottky barrier diodes. The noise spectral density reveals 1/f dependence, characteristic of the fli…
Photovoltaic Surfaces to Reverse Global Warming
Christiana Honsberg, Stuart G. Bowden, Ian R. Sellers +2
Climate changes and its many associated impacts are one of the most critical global challenges. Photovoltaics has been instrumental in mitigation of CO through the generation o…
From Femtoseconds to Gigaseconds: The SolDeg Platform for the Performance Degradation Analysis of Silicon Heterojunction Solar Cells
Davis Unruh, Reza Vatan Meidanshahi, Chase Hansen +4
Heterojunction Si solar cells exhibit notable performance degradation. We developed the SolDeg platform to model this degradation as electronic defects getting generated by thermal…
Defect State Density and Orbital Localization in a-Si:H/c-Si Heterojunction and the Role of H
Reza Vatan Meidanshahi, Stephen M. Goodnick, Dragica Vasileska
In this paper, we explore the effect of H and its bonding configurations on the defect state density and orbital localization of hydrogenated amorphous Si (a-Si:H)/crystalline Si (…