241 citations · 895 across the 26 of their papers we have counts for
10 papers · 1 filter
Band tail formation in mono and multilayered transition metal dichalcogenides: A detailed assessment and a quick-reference guide
Prasad Sarangapani, James Charles, Tillmann Kubis
Transition metal dichalcogenides (TMDs) are promising candidates for a wide variety of ultrascaled electronic, quantum computation, and optoelectronic applications. The exponential…
Non-equilibrium Green's function predictions of band tails and band gap narrowing in III-V semiconductors and nanodevices
Prasad Sarangapani, Yuanchen Chu, James Charles +1
High-doping induced Urbach tails and band gap narrowing play a significant role in determining the performance of tunneling devices and optoelectronic devices such as tunnel field-…
Control of interlayer delocalization in 2H transition metal dichalcogenides
Kuang-Chung Wang, Teodor K. Stanev, Daniel Valencia +14
It is assessed in detail both experimentally and theoretically how the interlayer coupling of transition metal dichalcogenides controls the electronic properties of the respective…
Thermal Transport Across Metal Silicide-Silicon Interfaces: First-Principles Calculations and Green's Function Transport Simulations
Sridhar Sadasivam, Ning Ye, James Charles +4
In this work, we use a combination of first-principles calculations under the density functional theory framework and heat transport simulations using the atomistic Green's functio…
Modeling techniques for quantum cascade lasers
Christian Jirauschek, Tillmann Kubis
Quantum cascade lasers are unipolar semiconductor lasers covering a wide range of the infrared and terahertz spectrum. Lasing action is achieved by using optical intersubband trans…
Proximity induced ferromagnetism, superconductivity, and finite-size effects on the surface and edge states of topological insulator nanostructures
Parijat Sengupta, Tillmann Kubis, Yaohua Tan +1
BiTe and BiSe are well known 3D-topological insulators. Films made of these materials exhibit metal-like surface states with a Dirac dispersion and possess…