Yia-Chung Chang

activity

19962022

most citedThermoelectric and thermal rectification properties of quantum dot junctions

153 citations · 1.2k across the 85 of their papers we have counts for

collaborators

Showing 2021Show all

4 papers · 1 filter

cond-mat.mtrl-sci2021★ 3 cited

Density functional calculations of atomic structure, charging effect, and static dielectric constant of two-dimensional systems based on B-splines

Chung-Yuan Ren, Yia-Chung Chang

We implement a total-energy minimization scheme to allow for relaxation of atomic positions in density functional calculations for two-dimensional (2D) systems using a mixed basis…

cond-mat.mes-hall2021★ 2 cited

Foldy-Wouthuysen transformation for gapped Dirac fermions in two-dimensional semiconducting materials and valley excitons under external fields

Yao-Wen Chang, Yia-Chung Chang

In this work, we provide a detailed derivation of Foldy-Wouthuysen (FW) transformation for two-dimensional (2D) gapped Dirac fermions under external fields and apply the formalism…

cond-mat.mes-hall2021

Modeling Photocurrent Spectra of In $_{0.91}$ Ga $_{0.09}$ N/In $_{0.4}$ Ga $_{0.6}$ N Disk-in-Wire Photodiode on Silicon for $1.3$ $μ$ m $-$ $1.55$ $μ$ m Operation

Fu-Chen Hsiao, Arnab Hazari, Pallab Bhattacharya +2

This work reports comprehensive theoretical modeling of photocurrent spectra generated by an In $_{0.91}$ Ga $_{0.09}$ N/In $_{0.4}$ Ga $_{0.6}$ N disk-in-wire photodiode. The strain distr…

cond-mat.mes-hall2021★ 4 cited

Electric-field-tunable intervalley excitons and phonon replicas in bilayer WSe $_{2}$

Mashael M. Altaiary, Erfu Liu, Ching-Tarng Liang +7

We report the direct observation of intervalley exciton between the Q conduction valley and $Γ$ valence valley in bilayer WSe $_{2}$ by photoluminescence. The Q $Γ$ exciton lies at ~18…

Density functional calculations of atomic structure, charging effect, and static dielectric constant of two-dimensional systems based on B-splines

Foldy-Wouthuysen transformation for gapped Dirac fermions in two-dimensional semiconducting materials and valley excitons under external fields

Modeling Photocurrent Spectra of In0.91​Ga0.09​N/In0.4​Ga0.6​N Disk-in-Wire Photodiode on Silicon for 1.3 μm − 1.55 μm Operation

Electric-field-tunable intervalley excitons and phonon replicas in bilayer WSe2​

Modeling Photocurrent Spectra of In $_{0.91}$ Ga $_{0.09}$ N/In $_{0.4}$ Ga $_{0.6}$ N Disk-in-Wire Photodiode on Silicon for $1.3$ $μ$ m $-$ $1.55$ $μ$ m Operation

Electric-field-tunable intervalley excitons and phonon replicas in bilayer WSe $_{2}$