195 citations · 607 across the 18 of their papers we have counts for
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Assessing the defect tolerance of kesterite-inspired solar absorbers
Andrea Crovetto, Sunghyun Kim, Moritz Fischer +4
Various thin-film I-II-IV-VI photovoltaic absorbers derived from kesterite CuZnSn(S,Se) have been synthesized, characterized, and theoretically investigated in the…
Quick-start guide for first-principles modelling of point defects in crystalline materials
Sunghyun Kim, Samantha N. Hood, Ji-Sang Park +2
Defects influence the properties and functionality of all crystalline materials. For instance, point defects participate in electronic (e.g. carrier generation and recombination) a…
Comment on "Low-frequency lattice phonons in halide perovskites explain high defect tolerance toward electron-hole recombination"
Sunghyun Kim, Aron Walsh
Halide perovskites exhibit slow rates of non-radiative electron-hole recombination upon illumination. Chu et al. [Sci. Adv. 6 7, eaaw7453 (2020)] use the results of first-principle…
Upper limit to the photovoltaic efficiency of imperfect crystals
Sunghyun Kim, José A. Márquez, Thomas Unold +1
The Shockley-Queisser (SQ) limit provides a convenient metric for predicting light-to-electricity conversion efficiency of a solar cell based on the band gap of the light-absorbing…