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It has an open-circuit voltage of 291 mV, a short-circuit current of 45.0 mA/cm2, and a fill factor of 0.656. Researchers from Tokyo City University have fabricated a germanium (Ge) heterojunction solar cell with an area of 1 square centimeter, which they claim is the highest level ever reported for the technology thus far.
Germanium-based materials with extremely high theoretical energy capacities have gained a lot of attention recently as potential anodes for lithium ion batteries.
Japanese scientists have developed a heterojunction germanium solar cell with the biggest area ever achieved for the tech. It has an open-circuit voltage of 291 mV, a short-circuit current of 45.0 mA/cm2, and a fill factor of 0.656.
“The Ge heterojunction solar cell was developed as the bottom cell of the triple-junction solar cell,” researcher Makoto Konagai told pv magazine. “Concrete applied research is a future theme. It could be used as a detector in the infrared region or a light-emitting device in the infrared region.”
Herein, we propose a very high-efficiency novel solar cell structure based on high-purity germanium (HPGe). Germanium (Ge) is a group IV indirect semiconductor like Si, but with a smaller bandgap of 0.66 eV and higher carrier mobilities at low temperature, which makes it more attractive than Si for optoelectronic applications , .
High-purity germanium (HPGe)-based novel n -CdS/ p -HPGe/ p+ -BaSi 2 DHJSC has been designed and simulated using SCAPS-1D software. The structure of the device has been optimized for the highest efficiency of the solar cells.
Some tentative results obtained in a study of the electrical characteristics ofrupt monocrystalline junctions between two different semiconductor materials are summarized. Abrupt …
Was bedeutet Heterojunction? Die HJT-Solarzelle ist eine Kombination aus einem kristallinen Silizium-Wafer und einer Dünnschichtzelle aus amorphem Silizium. Während in normalen …
Silicon heterojunction (SHJ) solar cells have achieved a record efficiency of 26.81% in a front/back-contacted (FBC) configuration. Moreover, thanks to their advantageous …
High-purity germanium (HPGe)-based novel n-CdS/p-HPGe/p +-BaSi 2 DHJSC has been designed and simulated using SCAPS-1D software. The structure of the device has …
We report stand-alone heterojunction (HJ) solar cells with conversion …
This paper proposes a molybdenum disulfide (MoS2)/Germanium (Ge) heterojunction device with a top gate composed of hexagonal boron nitride and graphene. …
Japanese scientists have developed a heterojunction germanium solar cell with the biggest area ever achieved for the tech. It has an open-circuit voltage of 291 mV, a short …
Japanese scientists have developed a heterojunction germanium solar cell …
Germanium-based anode materials possess high theoretical capacity, high intrinsic electronic conductivity and fast lithium ion diffusion kinetics, making it ideal anode …
As predicted in Fig. 1 (c), c-Si heterojunction solar cells with passivating contacts will be the next generation high-efficiency PV production (≥ 25%) after PERC. This …
We report stand-alone heterojunction (HJ) solar cells with conversion efficiencies of 5.9% and 7.2% on n-type and p-type crystalline germanium (c-Ge) substrates, …
The SHJ with (i)a-Si:H layers, also initially known as ''Heterojunction with Intrinsic Thin-layer'' (HIT) solar cell was first introduced by Panasonic (Sanyo) with an …
As the first example of bandgap engineering in silicon, the evolution of silicon-germanium (SiGe) heterojunction bipolar transistor (HBT) performance has been exceptionally …
This paper presents 3-D simulation of angled strike heavy-ion induced charge collection in domestic silicon-germanium heterojunction bipolar transistors (SiGe HBTs). 3D damaged …
where x is the germanium fraction and a is the lattice constant. The lattice constant of silicon, a Si, is 0.543 nm, the lattice constant of germanium, a Ge, is 0.566 nm and the lattice mismatch is …
An all-solid-state Z-scheme heterojunction can be constructed by adding a co-catalyst or buffer layer between type-II heterojunction semiconductor interfaces. Di Liberto et …
Germanium (Ge) is a promising anode material for lithium-ion batteries due to …
We report stand-alone heterojunction (HJ) solar cells with conversion …
Betavoltaic batteries are known as long lifetime, reliable, and constant energy sources have been attracted researchers'' attention since the early 1950''s [1].Rappaport was …
Germanium (Ge) is a promising anode material for lithium-ion batteries due to its large theoretical specific capacity, good electrical conductivity, and fast lithium-ion diffusivity. …
Germanium-based anode materials possess high theoretical capacity, high …
Shifting the focus to germanium, Ge 2+ shares a comparable outer ns 2 electronic configuration with Sn 2+ and Pb 2+. Specifically, Ge 2+ has a 4s 2 structure, while …