56 citations · 234 across the 11 of their papers we have counts for
9 papers · 1 filter
A High-Quality Thermoelectric Material Database with Self-Consistent ZT Filtering
Byungki Ryu, Ji Hui Son, Sungjin Park +5
This study presents a curated thermoelectric material database, teMatDb, constructed by digitizing literature-reported data. It includes temperature-dependent thermoelectric proper…
Thermoelectric Algebra Made Simple for Thermoelectric Generator Module Performance Prediction under Constant Seebeck-Coefficient Approximation
Byungki Ryu, Jaywan Chung, SuDong Park
While thermoelectric material performances can be estimated using the ZT, predicting the performance of thermoelectric generator modules (TGMs) is complex due to the non-linearity…
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…
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…
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…
Thermoelectric degrees of freedom determining thermoelectric efficiency
Byungki Ryu, Jaywan Chung, SuDong Park
Thermal energy can be directly converted to electrical energy as a result of thermoelectric effects. Because this conversion realises clean energy technology, such as waste heat re…
Hybrid-Density Functional Theory Study on Band Structures of Tetradymite-Bi2Te3, Sb2Te3, Bi2Se3, and Sb2Se3 Thermoelectric Materials
Sudong Park, Byungki Ryu
The low energy band structure near the band gap determines the electrical performance of thermoelectric materials. Here, by using the hybrid-density functional theory (hybrid-DFT)…
Prediction of Band Structure of -related Binary and Ternary Thermoelectric Materials
Byungki Ryu, Min-Wook Oh, Bong-Seo Kim +5
Density functional calculations have performed to study the band structures of -related binary (, , , and ) and / doped te…