Lightweight and flexible thin crystalline silicon solar cells have huge market potential but remain relatively unexplored. Here, authors present a thin silicon structure with reinforced ring to prepare free-standing 4.7-μm 4-inch silicon wafers, achieving efficiency of 20.33% for 28-μm solar cells.
Consequently, the silicon-based ultra-thin solar cell inherited their characteristics very well when both the optimal silicon surface grating and bottom metal grating are applied at the same time, thereby increasing the absorption rate of the solar cell in the entire waveband.
Zheng, G. et al. 16.4% efficient, thin active layer silicon solar cell grown by liquid phase epitaxy. Sol. Energy Mater.
Adv. Mater. 27, 2182–2188 (2015). This paper reports the first ultrathin silicon solar cell (t = 10 μm) with a short-circuit current exceeding significantly single-pass absorption and leading to an efficiency η = 15.7%. Gaucher, A. et al. Ultrathin epitaxial silicon solar cells with inverted nanopyramid arrays for efficient light trapping.
However, thin Si solar cells with nanostructures are not efficient because of severe Auger recombination and increased surface area, normally yielding <50% EQE with short-wavelength light. Here we demonstrate >80% EQEs at wavelengths from 400 to 800 nm in a sub-10-μm-thick Si solar cell, resulting in 13.7% power conversion efficiency.
Recently, a technique of blunting pyramidal structure in the marginal regions was proposed by Liu et al. for thin silicon solar cells with a thickness of around 60 μm 2. However, for thinner silicon wafers, there could be a lot of breakage before blunting pyramids.
An ultra-thin crystalline silicon solar cell with an active silicon layer of 200 nm has been fabricated and fully characterised electrically (I-V characteristic, spectral response) and optically …
Here, we propose an ultra-thin c-Si solar cell with a stepped pyramid nanostructure for efficient absorption, which consists of the Ag reflective layer, the c-Si …
The first generation of solar cells is constructed from crystalline silicon wafers, which have a low power conversion effectiveness of 27.6% [] and a relatively high …
Ultra-thin solar cells offer an indispensable power generation solution for weight sensitive applications like drones, spacecraft, weather balloons, and avionics [1], [2], [3], …
Ultrathin solar cells with thicknesses at least 10 times lower than conventional solar cells could have the unique potential to efficiently convert solar energy into electricity …
Nature Communications - Lightweight and flexible thin crystalline silicon solar cells have huge market potential but remain relatively unexplored. Here, authors present a thin …
Thus far, we have reported on the nanotexturing of ultra-thin monocrystalline Si substrates. Given the promising optical results, we now try to transfer them into a proof-of …
Black silicon obtained through DRIE techniques offer unique characteristics that make them particularly appealing for high-efficiency ultra-thin solar cells. First, the nanotexture …
Nanoparticle integrated ultra-thin solar cells with only 3% of the current wafer thickness can potentially achieve 15.3% efficiency combining the absorption enhancement …
Heidarzadeh, H. & Tavousi, A. Performance enhancement methods of an ultra-thin silicon solar cell using different shapes of back grating and angle of incidence light. Mater. …
4 · Recently, the successful development of silicon heterojunction technology has significantly increased the power conversion efficiency (PCE) of crystalline silicon solar cells to …
We demonstrate through precise numerical simulations the possibility of flexible, thin-film solar cells, consisting of crystalline silicon, to achieve power conversion efficiency of …
Thin films of transition metal oxides such as molybdenum oxide (MoO x) are attractive for application in silicon heterojunction solar cells for their potential to yield large …
Ultra-thin perovskite solar cells (UTPSCs) have shown fast ramping power conversion efficiencies (PCEs). Weight-specific-power-density (WSPD), calculated by …
The design principles that we outlined for highly efficient, ultra-thin Si solar cells show the potential of the nanostructured Si solar cell to be a …
In this paper, the cylindrical, conical and parabolic nanostructures inherited from self-organized anodic aluminum oxide (AAO) are applied to silicon-based ultra-thin solar cells …
Different methods have been utilized to improve ultra-thin-film silicon solar cells, one of which is the proposed plasmonic structure. The output efficiency of this structure …
Silicon is the most abundant semiconducting element in Earth''s crust; it is made into wafers to manufacture approximately 95% of the solar cells in the current photovoltaic …
Different methods have been utilized to improve ultra-thin-film silicon solar cells, one of which is the proposed plasmonic structure. The output efficiency of this structure …
In this paper, the cylindrical, conical and parabolic nanostructures inherited from self-organized anodic aluminum oxide (AAO) are applied to silicon-based ultra-thin solar cells …
The design principles that we outlined for highly efficient, ultra-thin Si solar cells show the potential of the nanostructured Si solar cell to be a cost-effective solution for...
For the ultra-thin-film silicon solar cell having a thickness of 1 µm, a designed double-sided pyramid structure provides an ideal short-circuit photocurrent of 34.23 mA/cm2. …
Slimmed down solar. Traditional silicon solar cells are fragile, so they must be encased in glass and packaged in heavy, thick aluminum framing, which limits where and how they can be deployed. ... Popular Science reporter …