In this work, we used SCAPS software to simulate Ge-based perovskite solar cells. SCAPS is a solar cell numerical simulation software for various semiconductor structures [13, 14].We used SCAPS to simulate solar capture and generation, transmission and extraction of electron/hole pairs, input various unique material parameters to simulate a given solar device.
This project worked on two different approaches to increase the effective use of germanium in multi-junction solar cells. The first work package studied how germanium can be recycled from
In this work, we designed the cross-cone nanostructure as the absorption layer of germanium-based solar cells, which can increase the optical path of light transmission in the absorption layer and improve the absorption
Devices achieve a single junction eficiency above 23% and open-circuit voltage of 1.01 V, demonstrating that spalled germanium does not need to be returned to a pristine, polished state to achieve high-quality device performance.
We report the first Germanium PV cell formed by a MoO x /n-Ge heterojunction. Photocurrent density is 44.8 mA/cm 2, comparable to that of conventional Ge PV cells. Open
Devices achieve a single junction eficiency above 23% and open-circuit voltage of 1.01 V, demonstrating that spalled germanium does not need to be returned to a pristine, polished
The incorporation of germanium breathes new life into solar cell technology, offering several edges over traditional silicon-based photovoltaic systems. The conversion efficiency – a key yardstick in renewable energy
In this work, we designed the cross-cone nanostructure as the absorption layer of germanium-based solar cells, which can increase the optical path of light transmission in the absorption layer and improve the absorption rate of the whole band and the Ge materials as the absorption layer can broaden the absorption band. Compared with the
The incorporation of germanium breathes new life into solar cell technology, offering several edges over traditional silicon-based photovoltaic systems. The conversion efficiency – a key yardstick in renewable energy production – can witness marked improvement with germanium-centric solar power frameworks. Recent research indeed paints an
Germanium (Ge) has been identified as one of the major environmental hotspots of ESA''s space missions. As one of the critical raw materials the use of it (mainly driven by solar cells) is a major contributor to mineral resource depletion. Today, Germanium is used as a growth template for certain solar cells. While the thickness of the
Concentrator photovoltaics that use optics to focus the Sun''s power on high-efficiency multi-junction solar cells can play a large role in boosting solar power generation. This technology requires sub-cells with different band gaps to absorb different parts of the solar spectrum to realise high theoretical energy conversion efficiencies. High
The majority reported that high-efficiency solar cells used perovskite components with a Pb basis [11], [12]. Significant attempts have been made to design substitute B-site cations due to the toxicity concerns with Pb. The ability to partially replace Pb-based perovskites has only been demonstrated for Sn-based perovskites thus far
For photovoltaic solar cells, tin-lead (Sn–Pb) perovskite materials provide a promising solution for reducing toxicity. However, Sn–Pb perovskites typically exhibit low luminescence
Organic–inorganic metal halide perovskites are widely used in solar cells, but the toxic metal Pb 2 + is still a necessary element to ensure excellent photovoltaic properties, so it is urgent to accomplish the conversion to low toxic perovskite solar cells. In this work, by introducing MAGeI 3 to form a double absorber layer structure with MAPbI 3, a novel germanium–lead
Concentrator photovoltaics that use optics to focus the Sun''s power on high-efficiency multi-junction solar cells can play a large role in boosting solar power generation. This technology requires sub-cells with different band
Devices achieve a single junction efficiency above 23% and open-circuit voltage of 1.01 V, demonstrating that spalled germanium does not need to be returned to a pristine, polished state to achieve high-quality device performance.
In this study, we focus on optimizing the structure of perovskite solar cells (PSCs) comprising a single absorption layer of FTO/n-CsGeI 3 /MAGeI 3 /p-CsGeI 3 /Pt. Subsequently, a novel double absorption layer structure based on FTO/n-CsGeI 3 /MAGeI 3 /CsGeI 3 /p-CsGeI 3 /Pt PSCs is proposed. We have designed high-performance devices by selectively integrating CsGeI 3
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...
Devices achieve a single junction efficiency above 23% and open-circuit voltage of 1.01 V, demonstrating that spalled germanium does not need to be returned to a pristine, polished state to achieve high-quality device
A research team from Canada''s Sheerbroke University says it has created a nanoporous germanium-based (np-Ge) material which could improve the efficiency of multi-junction solar cells based on
German scientists have fabricated an enhanced amorphous germanium PV cell that confines light in an ultra-thin absorber. It has the potential to combine PV with photosynthesis in new solar...
Germanium (Ge) has been identified as one of the major environmental hotspots of ESA''s space missions. As one of the critical raw materials the use of it (mainly driven by solar cells) is a
As one of the critical raw materials the use of it (mainly driven by solar cells) is a major contributor to mineral resource depletion. Today, Germanium is used as a growth template for certain solar cells. While the thickness of the Germanium on a solar cell level is extremely thin, around 140μm, actually only 10-20μm are actively being used
Bamberg says germanium-based solar cells are used on most spacecraft because they are more efficient and lighter than silicon-based solar cells. By making it more attractive economically to use efficient germanium solar cells on rooftops, the weight and size of solar panels can be reduced "so it doesn''t bother you aesthetically," he adds.
We report the first Germanium PV cell formed by a MoO x /n-Ge heterojunction. Photocurrent density is 44.8 mA/cm 2, comparable to that of conventional Ge PV cells. Open circuit voltage is 138 mV, lower than that of conventional Ge PV cells.
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.
Germanium has long been a popular material for integrated circuits. Outside the core area of electronic devices, an EU-funded project is showing its great potential as a substrate to lead next-generation multi-junction solar cells.
The devices obtained in this study have good electrical properties. The VOC of the germanium-based solar cells under the single-junction CC nanostructure absorber structure array is 0.31 V, and the JSC reaches 45.5 mA/cm 2. The FF value of the device can be calculated as 72.7% by Equation (4).
The strategic amalgamation of other semiconductor substances like GaAs (Gallium Arsenide) onto the Ge base culminates in multiple junctions that synergistically elevate the overall efficacy of solar cells. Contrasting silicon-based brethren, germanium solar cells showcase reduced recombination frequencies courtesy of superior conductive traits.
Author to whom correspondence should be addressed. In this paper, germanium-based solar cells were designed based on germanium (Ge) materials, and the cross-cone (CC) nanostructures were used as the absorber layer of the solar cells.
Nonetheless, monetary considerations retain paramount importance while transitioning from laboratory-scale fabrication towards commercialization. In the realm of high-efficiency solar power systems, a profound enigma lies in the utilization of germanium as a semiconductor material.
We are deeply committed to excellence in all our endeavors.
Since we maintain control over our products, our customers can be assured of nothing but the best quality at all times.