Roadmap on machine learning in electronic structure

…, AP Bartók, S Manzhos, M Ihara… - Electronic …, 2022 - iopscience.iop.org
In recent years, we have been witnessing a paradigm shift in computational materials science.
In fact, traditional methods, mostly developed in the second half of the XXth century, are …

Enhancement of the Absorption Coefficient of cis-(NCS)2 Bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) Dye in Dye-Sensitized Solar Cells by a Silver Island Film

M Ihara, K Tanaka, K Sakaki, I Honma… - The Journal of …, 1997 - ACS Publications
The absorption coefficient of the dye used in dye-sensitized solar cells is a major factor in the
total energy efficiency of the cell. In this work, we increased the absorption coefficient of the …

Dominant effect of the grain size of the MAPbI 3 perovskite controlled by the surface roughness of TiO 2 on the performance of perovskite solar cells

…, G Budiutama, K Suzuki, K Hasegawa, M Ihara - …, 2020 - pubs.rsc.org
Lead-halide perovskite solar cells (PSCs) have attracted attention due to their outstanding
high power-conversion efficiency. In conventional inorganic solar cells such as Si solar cells, …

Competitive Adsorption Reaction Mechanism of Ni/Yttria-Stabilized Zirconia Cermet Anodes in H 2 H 2 O Solid Oxide Fuel Cells

M Ihara, T Kusano, C Yokoyama - Journal of The Electrochemical …, 2001 - iopscience.iop.org
The reaction mechanism of the most commonly used anode material, Ni/yttria-stabilized
zirconia (YSZ) cermets, in solid oxide fuel cells (SOFCs) was investigated. Because the reaction …

Neural network with optimal neuron activation functions based on additive Gaussian process regression

S Manzhos, M Ihara - The Journal of Physical Chemistry A, 2023 - ACS Publications
Feed-forward neural networks (NNs) are a staple machine learning method widely used in
many areas of science and technology, including physical chemistry, computational chemistry…

Easy representation of multivariate functions with low-dimensional terms via Gaussian process regression kernel design: applications to machine learning of potential …

S Manzhos, E Sasaki, M Ihara - Machine Learning: Science and …, 2022 - iopscience.iop.org
We show that Gaussian process regression (GPR) allows representing multivariate
functions with low-dimensional terms via kernel design. When using a kernel built with high-…

Photoabsorption-enhanced dye-sensitized solar cell by using localized surface plasmon of silver nanoparticles modified with polymer

M Ihara, M Kanno, S Inoue - Physica E: Low-dimensional Systems and …, 2010 - Elsevier
Photoelectric conversion efficiency (E ff ) of a dye-sensitized solar cell (DSSC) was improved
by localized surface plasmon on silver (Ag) nanoparticles modified with polyacrylate-based …

The analysis of electron densities: from basics to emergent applications

D Koch, M Pavanello, X Shao, M Ihara… - Chemical …, 2024 - ACS Publications
The electron density determines all properties of a system of nuclei and electrons. It is both
computable and observable. Its topology allows gaining insight into the mechanisms of …

Machine learning in computational chemistry: interplay between (non) linearity, basis sets, and dimensionality

S Manzhos, S Tsuda, M Ihara - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
Machine learning (ML) based methods and tools have now firmly established themselves in
physical chemistry and in particular in theoretical and computational chemistry and in …

Hybrid Density Functional Tight Binding (DFTB)─ Molecular Mechanics Approach for a Low-Cost Expansion of DFTB Applicability

…, R Li, S Manzhos, M Ihara - Journal of Chemical …, 2023 - ACS Publications
The density functional-based tight binding (DFTB) method has seen a rise in adoption for
materials modeling, as it offers significant improvement in scalability with accuracy comparable …