444 citations · 548 across the 5 of their papers we have counts for
5 papers
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…
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…
Thermoelectric power factor of Bi-Sb-Te and Bi-Te-Se alloys and doping strategy: First-principles study
Byungki Ryu, Jaywan Chung, Eun-Ae Choi +2
By performing first principles calculations combined with Boltzmann transport equations, we calculate the thermoelectric power factor (PF) of Bi-Sb-Te and Bi-Te-Se ternary alloys a…
O-vacancy as the origin of negative bias illumination stress instability in amorphous In-Ga-Zn-O thin film transistors
Byungki Ryu, Hyeon-Kyun Noh, Eun-Ae Choi +1
We find that O-vacancy (Vo) acts as a hole trap and play a role in negative bias illumination stress instability in amorphous In-Ga-Zn-O thin film transistors. Photo-excited holes…