444 citations · 803 across the 15 of their papers we have counts for
16 papers
Best Thermoelectric Efficiency of Ever-Explored Materials
Byungki Ryu, Jaywan Chung, Masaya Kumagai +9
A thermoelectric device is a heat engine that directly converts heat into electricity. Many materials with a high figure of merit ZT have been discovered in anticipation of a high…
Unique Temperature Distribution and Explicit Efficiency Formula for One-Dimensional Thermoelectric Generators under Constant Seebeck Coefficients
Jaywan Chung, Byungki Ryu, Hyowon Seo
A thermoelectric generator converts a temperature difference into electrical energy. Its energy conversion efficiency is determined by the steady-state temperature distribution ins…
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…