Highlights with ‘BAND’

Accurate optical spectra of semi-conductors and insulators

Our BAND developers in Toulouse published a simple yet accurate method to obtain accurate optical spectra for semi-conductors and insulators. In a recent Phys. Rev. B paper they combine time-dependent DFT with the dynamical Polarization...

Enhanced electrocatalytic water splitting on MoTe2

A new method of extracting hydrogen from water more efficiently could help underpin the capture of renewable energy in the form of sustainable fuel. Transition metal dichalcogenides are promising electrocatalytic materials for the hydrogen evolution...

MoS2 hydrodesulfurization catalyst

A recent Nature Communication paper characterizes a model MoS2 hydrodesulfurization catalyst compound under operating conditions -high temperature and high pressure- for a model organosulfur compound by combining STM with DFT calculations. The combined experimental and...

Screening industrial polymers for lithium–ion batteries electrode materials

Organic polymers are promising electrode materials for lithium ion batteries due to their low solubility, low self-discharge rates, high mechanical strength, great flexibility, superior thermal stability, and versatility. A recent study virtually screens industrial polymers...

Analyzing bonding interactions of molecules on surfaces: Paper & Tutorial

A recent review paper on periodic energy decomposition analysis (pEDA) by Lisa Pecher & Ralf Tonner was widely covered in the media (HLRS, CMFE, EurekAlert). The pEDA calculations enable deep insight in molecule-surface interactions, which...

Understanding Band Structures – “Mirrors of Bonding” in Perovskite Crystals

Band structures are a widely used tool in solid state physics and materials science to analyze the electronic structure of crystalline materials. However, the band structure of materials relevant for actual applications are often rather...

Perovskite Band Structure & COOP Analysis – Advanced Tutorial

Whether you are a solid state physicist thinking of chemistry as too arcane or a chemist puzzled by band structure theory: Try out our new tutorial and learn how to neatly link these two fields,...

Promoters in Fischer-Tropsch catalysis

The Fischer-Tropsch reaction aims at synthesizing lower olefins (C2-C4 alkenes) from synthesis gas (CO + H2). In this reaction, typically large amounts of methane are formed as an unwanted side product. In a combined experimental and theoretical study, computational...

Periodic energy decomposition analysis

A periodic extension of the energy decomposition analysis (pEDA) has been implemented in BAND. The natural orbitals for chemical valence (NOCV) is also available – at the gamma-point only. With pEDA researchers can analyze in...

Closing the band gap in 2D semiconductors

Relativistic periodic DFT calculations show that the band gap of single-layer transition-metal dichalcogenides (MoWSeS) are reduced by high external electric fields. MoS2 and MoSe2 become metallic at fields of 6.5 V Å−1 and 4.5 V...