15 citations · 15 across the 5 of their papers we have counts for
5 papers
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…
The Effects of Boron Doping on the Bulk and Surface Acoustic Phonons in Single-Crystal Diamond
Erick Guzman, Fariborz Kargar, Frank Angeles +7
We report the results of the investigation of bulk and surface acoustic phonons in the undoped and boron-doped single-crystal diamond films using the Brillouin-Mandelstam light sca…
The Effect of Strained Bonds on the Electronic Structure of Amorphous Silicon
Reza Vatan Meidanshahi, Payam Mehr, Stephan Marshal Goodnick
Several amorphous silicon structures were generated using a classical molecular dynamics (MD) protocol of melting and quenching with different quenching rates. An analysis of the c…
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 (…