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 …

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 …

p-BaSi2/n-Si heterojunction solar cells with conversion efficiency reaching 9.0%

D Tsukahara, S Yachi, H Takeuchi, R Takabe… - Applied physics …, 2016 - pubs.aip.org
p-BaSi 2/n-Si heterojunction solar cells consisting of a 20 nm thick B-doped p-BaSi 2
epitaxial layer (p= 2.2× 10 18 cm− 3) on n-Si (111)(ρ= 1–4 Ω cm) were formed by molecular …

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 …

Detection of local vibrational modes induced by intrinsic defects in undoped BaSi2 light absorber layers using Raman spectroscopy

T Sato, H Hoshida, R Takabe, K Toko, Y Terai… - Journal of applied …, 2018 - pubs.aip.org
We fabricate BaSi 2 epitaxial films on Si (111) substrates by molecular beam epitaxy and
investigate point defects inside the films using Raman spectroscopy with the help of first …

First-principles study of twin grain boundaries in epitaxial BaSi2 on Si (111)

M Baba, M Kohyama, T Suemasu - Journal of applied physics, 2016 - pubs.aip.org
Epitaxial films of BaSi 2 on Si (111) for solar cell applications possess three epitaxial
variants and exhibit a minority carrier diffusion length (ca. 9.4 μm) much larger than the …

Formation of BaSi2 heterojunction solar cells using transparent MoOx hole transport layers

W Du, R Takabe, M Baba, H Takeuchi, KO Hara… - Applied physics …, 2015 - pubs.aip.org
Heterojunction solar cells that consist of 15 nm thick molybdenum trioxide (MoO x, x< 3) as a
hole transport layer and 600 nm thick unpassivated or passivated n-BaSi 2 layers were …

Effects of lattice parameter manipulations on electronic and optical properties of BaSi2

DA Shohonov, DB Migas, AB Filonov, VE Borisenko… - Thin Solid Films, 2019 - Elsevier
We present comprehensive experimental and theoretical investigation on a band-gap
engineering and modification in optical properties of BaSi 2–a new and very promising …

Modeling the effects of defect parameters on the performance of a p-BaSi2/n-Si heterojunction solar cell

T Deng, Z Xu, Y Yamashita, T Sato, K Toko… - Solar energy materials …, 2020 - Elsevier
Barium disilicide (BaSi 2) in thin-film solar cell applications has drawn considerable interest
owing to its promising optical and electrical properties. We have achieved an efficiency of …