Exploring the potential of semiconducting BaSi2 for thin-film solar cell applications

T Suemasu, N Usami - Journal of Physics D: Applied Physics, 2016 - iopscience.iop.org
Abstract Semiconducting barium disilicide (BaSi 2), which is composed of earth-abundant
elements, has attractive features for thin-film solar cell applications. Both a large absorption …

Recent advances in computational studies of thin-film solar cell material BaSi2

M Kumar, N Umezawa, M Imai - Japanese Journal of Applied …, 2020 - iopscience.iop.org
Barium disilicide (BaSi 2) has attracted significant attention as a promising next-generation
thin-film solar cell material. However, there are still significant barriers to bringing BaSi 2 to …

Exploring the possibility of semiconducting BaSi2 for thin-film solar cell applications

T Suemasu - Japanese Journal of Applied Physics, 2015 - iopscience.iop.org
Semiconducting BaSi 2 has attractive features for thin-film solar cell applications because
both a large absorption coefficient and a long minority-carrier diffusion length can be …

Barium disilicide as a promising thin-film photovoltaic absorber: structural, electronic, and defect properties

M Kumar, N Umezawa, W Zhou, M Imai - Journal of Materials …, 2017 - pubs.rsc.org
Barium disilicide (BaSi2), composed of abundant and inexpensive elements, is a potential
absorber material for thin-film solar cells. In this study, density-functional theory calculations …

BaSi2 as a promising low-cost, earth-abundant material with large optical activity for thin-film solar cells: A hybrid density functional study

M Kumar, N Umezawa, M Imai - Applied Physics Express, 2014 - iopscience.iop.org
Employing a hybrid density functional theory, we reveal the origin of the large absorption
coefficient in BaSi 2, which is roughly two to eighty times larger at ħω− E g= 0.5 eV than …

Influence of grain size and surface condition on minority-carrier lifetime in undoped n-BaSi2 on Si (111)

R Takabe, KO Hara, M Baba, W Du… - Journal of applied …, 2014 - pubs.aip.org
We have fabricated approximately 0.5-μm-thick undoped n-BaSi 2 epitaxial films with
various average grain areas ranging from 2.6 to 23.3 μm 2 on Si (111) by molecular beam …

Fabrication of single-phase polycrystalline BaSi2 thin films on silicon substrates by vacuum evaporation for solar cell applications

Y Nakagawa, KO Hara, T Suemasu… - Japanese Journal of …, 2015 - iopscience.iop.org
We report on the successful fabrication of single-phase polycrystalline BaSi 2 films on Si
(111) substrates by a simple vacuum evaporation method using BaSi 2 granules. Substrate …

Photoresponse properties of BaSi2 film grown on Si (100) by vacuum evaporation

CT Trinh, Y Nakagawa, KO Hara… - Materials Research …, 2016 - iopscience.iop.org
We have succeeded in the observation of high photoresponsivity of orthorhombic BaSi 2 film
grown on crystalline Si by a vacuum evaporation method, raising the prospect of its …

Three-step growth of highly photoresponsive BaSi2 light absorbing layers with uniform Ba to Si atomic ratios

Y Yamashita, T Sato, N Saitoh, N Yoshizawa… - Journal of Applied …, 2019 - pubs.aip.org
Barium disilicide (BaSi 2) shows great promise as a light absorbing material for solar cell
applications. Thus, it is important to form high-quality BaSi 2 films with a low defect density …

Transport properties of n-and p-type polycrystalline BaSi2

T Deng, T Suemasu, DA Shohonov, IS Samusevich… - Thin Solid Films, 2018 - Elsevier
Electron and hole mobilities versus temperature in semiconducting barium disilicide (BaSi 2)
have been systematically studied both experimentally and theoretically. The experiments …