23 citations · 46 across the 3 of their papers we have counts for
7 papers
Off-centered Pb interstitials in PbTe
Sungjin Park, Jongho Park, Byungki Ryu +1
In this work, we calculate the defect properties of low-symmetry Pb interstitials in PbTe using first-principles density-functional theory calculations. We break the symmetry impos…
Native point defects and low -doping efficiency in solid solutions: A hybrid-density functional study
Byungki Ryu, Eun-Ae Choi, Sungjin Park +5
We perform hybrid-density functional calculations to investigate the charged defect formation energy of native point defects in , , and their solid solutions. The…
Counterintuitive example on relation between ZT and thermoelectric efficiency
Byungki Ryu, Jaywan Chung, Eun-Ae Choi +3
The thermoelectric figure of merit ZT, which is defined using electrical conductivity, Seebeck coefficient, thermal conductivity, and absolute temperature T, has been widely used a…
General Efficiency Theory of Thermoelectric Conversion
Byungki Ryu, Jaywan Chung, SuDong Park
In this Letter, we show thermoelectric conversion efficiency is \emph{exactly} determined by \emph{three} independent material parameters , , and . Each paramete…
Hybrid-functional and quasi-particle calculations of band structures of Mg2Si, Mg2Ge, and Mg2Sn
Byungki Ryu, Sungjin Park, Eun-Ae Choi +4
We perform hybrid functional and quasi-particle band structure calculations with spin-orbit interaction to investigate the band structures of Mg2Si, Mg2Ge, and Mg2Sn. For all Mg2X…
Investigation of effective thermoelectric properties of composite with interfacial resistance using micromechanics-based homogenisation
Jiyoung Jung, Sangryun Lee, Byungki Ryu +1
We obtained the analytical expression for the effective thermoelectric properties and dimensionless figure of merit of a composite with interfacial electrical and thermal resistanc…